In dogs, ... What are the possible Genotypes of the offspring and percentages? pick two
DD
Dd
dd
DDdd
0% 25% 50% 75% 100%
Answers
Answer:
Im really confused
Explanation:
Related Questions
Amino acid is to protein as_____________________.
Group of answer choices
A. fat is to lipid
B. DNA is to RNA
C. sugar is to fat
D. monosaccharide is to starch
Answers
Answer:
The answer is the D. because simple sugar is to starch
While the neurology resident, Dr. Takahashi, was performing her examination, Sally asked her what a nerve was made of exactly. Which of the following statements is true regarding the cellular structure of a neuron? The neurology resident told Sally that axons of neurons make up the nerves that transfer information between the PNS and CNS. The neurology resident told Sally that the cell body, or some, made up the nerves and that this structure was what allowed the signal to travel between the CNS and PNS. The neurology resident told Sally that neurons and their dendrites, which send and reccive signals, made up the nerves and that the information was transported only from the PNS to the CNS. The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the CNS to the PNS.
Answers
The statement that is true regarding the cellular structure of a neuron is; The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the PNS to the CNS. Option A is correct.
This statement accurately describes the composition of nerves and the direction of information transmission. Neurons, which consist of a cell body, dendrites, and an axon, are the basic building blocks of the nervous system. Dendrites receive signals from other neurons, while the axon transmits signals to other neurons.
Nerves, on the other hand, are composed of bundled axons of neurons and are responsible for transmitting information between the peripheral nervous system (PNS) and the central nervous system (CNS). The information flow typically occurs from the PNS to the CNS.
Hence, A. is the correct option.
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--The given question is incomplete, the complete question is
"While the neurology resident, Dr. Takahashi, was performing her examination, Sally asked her what a nerve was made of exactly. Which of the following statements is true regarding the cellular structure of a neuron? A) The neurology resident told Sally that axons of neurons make up the nerves that transfer information between the PNS and CNS. B) The neurology resident told Sally that the cell body, or some, made up the nerves and that this structure was what allowed the signal to travel between the CNS and PNS. C) The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the PNS to the CNS. D) The neurology resident told Sally that neurons and their dendrites, which send and receive signals, made up the nerves and that the information was transported only from the CNS to the PNS."--
what's the difference between meiosis and mitosis?
Answers
Explanation:
Comparison of the processes of mitosis and meiosis. Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
Answer:
Explanation:
The difference between meiosis and mitosis is: Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.
In the 1940s and 1950s, Dr Barbara McClintock studied mosaic colour patterns in corn and discovered their unstable inheritance and the underlying mechanisms. In 1983 she was awarded the Nobel Prize in Physiology/Medicine for her discovery, and is now considered one of the most influential geneticists of the 20th century. (a) Name two synonymous names for the genetic elements that Dr McClintock discovered
(b) What can these genetic elements do, and what can the consequences be for a gene and for a host genome?
(c) Which gene function do these elements require for their activity, and what are the two classes that these elements can be assigned to, and how do these two classes function in a host genome? (d) Why did Dr McClintock initially find resistance to publish her findings and in the scientific community, to the point that she did not publish these for 20 years, and why were her ground-breaking research findings a paradigm shift in the end?
Answers
They are known by two synonymous names: transposable elements or transposons. These elements can move within a genome and have various consequences for a gene and the host genome.
(a) The two synonymous names for the genetic elements discovered by Dr. McClintock are transposable elements and transposons. These terms refer to segments of DNA that have the ability to move or transpose within a genome.
(b) Transposable elements can have various effects on genes and the host genome. They can insert themselves into a gene, disrupting its function and causing mutations. They can also influence gene expression by inserting near regulatory regions, affecting the level of gene activity. Additionally, transposable elements can cause genomic rearrangements, such as duplications, deletions, or inversions, altering the structure of the genome.
(c) The activity of transposable elements requires specific genes called transposase genes. Transposase enzymes catalyze the movement of transposable elements within the genome. Transposable elements can be classified into two main classes: Class I retrotransposons and Class II DNA transposons. Class I retrotransposons transpose via a copy-and-paste mechanism, where the element is first transcribed into RNA, then reverse transcribed back into DNA and inserted at a new location. Class II DNA transposons, on the other hand, move through a cut-and-paste mechanism, directly excising from one genomic location and reinserting into another.
(d) Dr. McClintock initially faced resistance and skepticism from the scientific community, which led her to withhold publishing her findings for nearly 20 years. At the time, the prevailing belief was that genes were fixed entities with stable positions in the genome. Dr. McClintock's discovery of mobile genetic elements challenged this view and was initially met with skepticism.
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Sweating when it is hot outside is an example of which characteristic of life?
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PLZ HURRY I HAVE TO FINISH MY HOMEWORK IF I WANT TO GO HORSEBACK RIDING TOMORROW
The amount of nitrogen added to the atmosphere through denitrification is _____.
the amount of nitrogen taken from the atmosphere through nitrogen fixation.
A.) greater than
B.)less than
C.) equal to
Answers
Answer:
greater than can be the answer
You notice a rooster with a pea comb and a hen with a rose comb in your chicken coop. Outline how you would determine the nature of the genetic control of comb type. How would you proceed if both your rooster and hen had rose comb?
Answers
To determine the nature of the genetic control of comb type in chickens, you would perform a cross between the rooster with a pea comb and the hen with a rose comb and observe the comb types of their offspring. If both the rooster and hen had a rose comb, it suggests that the rose comb trait is dominant.
By performing a cross between a rooster with a pea comb and a hen with a rose comb, you can determine the inheritance pattern of the comb types in chickens. If the offspring show a 1:1 ratio of pea comb to rose comb, it would indicate that the trait is controlled by a single gene with the rose comb allele being dominant over the pea comb allele. However, if all the offspring exhibit a rose comb, it would suggest that the rose comb trait is dominant and homozygous dominant (RR) in both the rooster and hen.
By conducting controlled breeding experiments and analyzing the comb types of the resulting offspring, researchers can deduce the mode of inheritance and gain insights into the genetic control of comb type in chickens.
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Identify a food chain that consists of a producer, a primary consumer, a secondary consumer and a tertiary consumer.
Answers
Answer:
A producer consumes water and sunlight, while a primary eats the producers, while the secondary can either eat the producers and the primary consumers or just eats the primary consumers. The tertiary consumers are at the top of the food chain and can eat all of the above for a stable food source.
What are simple examples of homeostasis?
Answers
Homeostasis is the ability to maintain internal stability in an organism in response to the environmental changes. The internal temperature of the human body is the best example of homeostasis.
Homeostasis, also known as homoeostasis in the UK, is the stable internal, external, and chemical conditions that are maintained by biological systems.
This is the state of the organism when everything is operating at its best and numerous factors, including fluid balance and body temperature, are maintained within predetermined ranges (homeostatic range).
Despite changes in the environment, nutrition, or level of exercise, other factors such as the pH of extracellular fluid, the concentrations of sodium, potassium, and calcium ions, as well as the blood sugar level, must be controlled.
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If you help me I'll give you a brain list
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I answered the first image in another question for you, though I noticed that the heart to body question was never answered (or at least properly answered).
The blood leaves our heart through the aortic valve, and travels into the aorta which ultimately leads to the body.
Hope this helps!
WHAT MIGHT HAPPEN IF
ALL THE HERBIVORES IN
A FOOD WEB
DISAPPEAR?
Answers
Answer:
Well, if all the herbivores disappeared, multiple things could occur. Without anyone keeping plants in check, plants may grow too abundant and may be harmful to the food web. Not only that, but predators that eat herbivors might starve without food. On the plus side, natural resources like water would increase without herbivores drinking/using it.
I hope this helps :)
Explanation:
During one night in 1995, a 1600-foot section of Sleeping Dunes National Lakeshore beach collapsed and landed in Lake Michigan. The missing sand created a steep 100-foot drop straight into Lake Michigan.
What caused the disappearance of the beach and the creation of the 100-ft drop into Lake Michigan?
A.
a landslide
B.
glacier movement
C.
deposition
D.
weathering
Answers
Landslides are the displacement of material from higher to lower regions due to the action of different factors. A) a landslide caused the disappearance of the beach and the creation of the 100-ft drop into Lake Michigan.
What is a landslide?A landslide can be defined as a massive movement of materials that include rocks, soil, plants, debris, and other elements composing the ground.
Mass of material moves from high altitude to low altitude due to the action of gravity and the influence of other factors as humidity excess.
These movements occur because the material is exposed to external forces (gravity) that supersede the strength of these materials producing slope breaks.
Other factors such as rains, increase in water level, snowmelt, erosion, earthquakes, human activities, and others influence the landslide occurrence.
The correct option is A) a landslide caused the disappearance of the beach and the creation of the 100-ft drop into Lake Michigan.
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........ provides genetic continuity from generation to generation.
a) sexual reproduction
b) fusion of gametes
c) asexual reproduction
d) meiosis
Answers
Answer:
d) meiosisExplanation:
The process of meiosis preserves genetic continuity for future offspring by ensuring that two sexually reproducing organisms produce offspring that have the same number of chromosomes as the parents.
It ensures that the offspring will be able to mate with other organisms of the same species.
A mixture of iron, salt and sand can be separated using a magnet, water, a filter and a hot plate. Think about this separation. The separation of this mixture
Answers
Answer:
Explanation:
This is an example of a mixture which can be separated with simple separation techniques based on the physical properties of the mixtures.Magnetism, and filtration and evaporation
Iron is a magnetic material,but salt and sand are not,Therefore,the iron can be separated from the mixture with the use of magnet.
Salt and sand are mixable.But salt is soluble in water,but sand is not.Therefore by adding the sand and salt to water,the salt will dissolve,in the water(solvent) to form a salt solution. But the sand can be separated out of the solution by filtration with the filter paper inserted into a funnel which allows the salt solution to pass through,while restricting the sand.
The sand would be removed by the filter paper,while solution passes through.
The salt solution and some sand residues is placed in evaporating dish and heated at low temperature. The water from the solution evaporates,leaving the salt behind.
A combination of two are more substances that is not chemically combined is called a mixture.
In order to separate a mixture of iron, salt and sand, we need a magnet, water, a filter and a hot plate. The magnet is brought close to the mixture and all the iron is removed.
Next, water is added. The water will dissolve the salt while the sand will settle beneath the vessel. The solution can now be filtered and the sand is removed. To recover the salt, the solution is heated using the hot plate until all the water is evaporated and the dry salt is recovered from solution.
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______ is an iron compound which adsorbs oxygen.
Answers
Answer:
hemoglobin
Explanation:
molecules has four blinding sights for oxygen molecules
one strand of a double‑helical dna has the sequence 5′−gcgcaatatttctcaaaatattgcgc−3′.5′−gcgcaatatttctcaaaatattgcgc−3′. write the base sequence of the complementary strand.
Answers
The complementary strand of the given DNA sequence is 3′-cgcaatttcttgagttttaatacgcg-5′.
The base sequence of the complementary strand can be determined by pairing each base with its complementary base. In DNA, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C).
Given the sequence 5′-gcgcaatatttctcaaaatattgcgc-3′, we can identify the complementary bases as follows:
- The base G pairs with C.
- The base C pairs with G.
- The base A pairs with T.
- The base T pairs with A.
Applying these pairings to the given sequence, the base sequence of the complementary strand is:
3′-cgcgttaataaagagttttataacgcg-5′
To summarize, the complementary strand of the given DNA sequence is 3′-cgcaatttcttgagttttaatacgcg-5′.
The base sequence of the complementary strand is determined by pairing each base with its complementary base. Adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). In the given DNA sequence 5′-gcgcaatatttctcaaaatattgcgc-3′, we can identify the complementary bases as follows: G pairs with C, C pairs with G, A pairs with T, and T pairs with A. Applying these pairings, we obtain the complementary strand 3′-cgcaatttcttgagttttaatacgcg-5′. It is important to note that the directionality of the DNA strands is indicated by the numbers 5′ and 3′. The 5′ end of the DNA strand has a phosphate group attached to the 5′ carbon of the deoxyribose sugar, while the 3′ end has a hydroxyl group attached to the 3′ carbon. In conclusion, the base sequence of the complementary strand is 3′-cgcaatttcttgagttttaatacgcg-5′.
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which of the following is true about asexual reproduction? group of answer choices it is energetically inefficient as one parent does all of the work. offspring are a 75% match to their parent (as opposed to 50% in sexual reproduction). only one parent is needed. only unicellular organisms can reproduce this way. haploid gametes unite to give rise to diploid offspring.
Answers
The true statement about asexual reproduction is that only one parent is needed to produce offspring.
Asexual reproduction is a mode of reproduction in which offspring are produced by a single parent without the involvement of gametes or any other partner. This type of reproduction is commonly found in bacteria, protists, fungi, and some plants and animals.
Unlike sexual reproduction, which requires two parents and involves the exchange and combination of genetic material, asexual reproduction results in offspring that are genetically identical or very similar to the parent. It is a simpler and more efficient way of producing offspring, as it does not require the complex processes and energy expenditure associated with sexual reproduction.
However, it does not provide the genetic diversity that sexual reproduction does, which can be a disadvantage in adapting to changing environments or combating diseases.
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Identify each of the following as an example of a scientific theory, a model, or a hypothesis. - In order to determine how muscles work, a biophysicist imagines that certain muscle proteins are tiny springs and measures how "stretchy" they are. This is a - A medical doctor sees some improvements in cancer patients when they are given a new drug, so the doctor thinks that the new drug may be helpful to treat cancer. This is a - Einstein developed a series of ideas and equations to explain gravity as a curvature in space and time; numerous experiments and observations have given results consistent with his ideas and equations. This is a - The flow of blood through a blood vessel is treated as the flow of a liquid through a long, straight pipe. This is a Why is it important for biologists and people in biology-related fields to learn physics? Select all that are correct. To learn how to solve complex problems To learn how to communicate scientific ideas To learn how to apply fundamental principles with logic and reasoning To learn how to plug numbers into equations and calculate answers To learn how to use math in science and make estimates To learn how to interpret and apply different representations of information To learn how to interpret quantitative measurements
Answers
- In order to determine how muscles work, a biophysicist imagines that certain muscle proteins are tiny springs and measures how "stretchy" they are. This is a model.
- A medical doctor sees some improvements in cancer patients when they are given a new drug, so the doctor thinks that the new drug may be helpful to treat cancer. This is a hypothesis.
- Einstein developed a series of ideas and equations to explain gravity as a curvature in space and time; numerous experiments and observations have given results consistent with his ideas and equations. This is a scientific theory.
- The flow of blood through a blood vessel is treated as the flow of a liquid through a long, straight pipe. This is a model.
It is important for biologists and people in biology-related fields to learn physics because:
- To learn how to solve complex problems
- To learn how to communicate scientific ideas
- To learn how to apply fundamental principles with logic and reasoning
- To learn how to interpret and apply different representations of information
- To learn how to interpret quantitative measurements
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Identify the following situations as a hypothesis, a theory, or a model.
i. In order to determine how muscles work, a biophysicist imagines that certain muscle proteins are tiny springs and measures how "stretchy" they are.
ii. Einstein developed a series of ideas and equations to explain gravity as a curvature in space and time; numerous experiments and observations have given results consistent with his ideas and equations.
iii. A medical doctor sees some improvements in cancer patients when they are given a new drug, so the doctor thinks that the new drug may be helpful to treat cancer.
A) i. - hypothesis; ii. - theory; iii. - model
B) i. - model; ii. - theory; iii. - hypothesis
C) i. - theory; ii. - hypothesis; iii. - model
D) i. - model; ii. - hypothesis; iii. - theory
E) i. - theory; ii. - model; iii. - hypothesis
if a pyramid has 4 triangular sides and a square base, and the scale model is 1:100. How many side does the pyramid have?
Answers
The base of a square pyramid is square. It has five vertices and four triangular faces.
How do you calculate a four-sided pyramid's area?The formula SA=B+12ps, where B is the base area, p is the base perimeter, and s is the slant height, is used to determine a pyramid's surface area. We shall apply the formula for a triangle's area to determine B because the base is a triangle.
What has a square face and four triangle faces?A shape with a base and three triangle sides is called a pyramid. All three sides of the triangle are the same size and shape. This pyramid has four triangular sides and a square base. Egypt's pyramids were built in this shape.
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Describe the process by which your kidneys conttrol the amount of water in your blood
Answers
Based on the table which element would contribute the most to color to an image showing the composition of the sun
Answers
The element that would contribute the most to color to an image showing the composition of the sun is hydrogen.
What is the most abundant element in the sun?We know that the sun lies at the center of the solar system. The solar system is the combination of the sun and the planets that surround it. The planets that do surround the sun move around the sun in concentric circles. This now implies that the sun is at the center or at the focus of the solar system.
We know that there is a characteristic color that we can find in the sun and that color that is common that is always seen in the sun is the red color of he sun. The cause of this bright red color of the sun is the emission spectrum that is coming from the hydrogen atom which happens to be the most abundant element that can be found in the sun.
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In which of the following would you find mitochondrion?
1) producers
2) primary and secondary consumers
3) decomposes
4) all of the above
5) none of the above
Answers
Mitochondria are present in all eukaryotic organisms, which include plants, animals, and fungi. In the given options, you would find mitochondria in all of the above (option 4).
Producers, such as plants, contain mitochondria in their cells to produce energy through cellular respiration. Primary and secondary consumers, which are animals, also contain mitochondria for energy production. Similarly, decomposers, including fungi and bacteria, rely on mitochondria to break down organic matter and release energy.
Mitochondria play a vital role in energy production and are often referred to as the "powerhouses" of the cell. They convert nutrients into adenosine triphosphate (ATP), which is used to fuel various cellular processes.
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The cross bridge cycle is a series of molecular events that occur after excitation of the sarcolemma. What is a cross bridge? Bridge View Available Hint(s)A. Calcium bound to troponinB. Amyosin head bound to actinC. ATP bound to a myosin headD. Troponin bound to tropomyosin
Answers
The cross-bridge cycle is a series of molecular events that occur after the excitation of the sarcolemma. A cross-bridge refers to B. Amyosin head bound to actin.
What is a cross-bridge?A cross-bridge is the term used to describe the attachment of the myosin head to the actin filament of a sarcomere. The "power stroke" or movement of the actin filament over the myosin filament is caused by this attachment. When the muscle contracts, these cross-bridges are created in the myosin filaments and actin filaments of the sarcomere, which pulls the filaments closer together.
However, Calcium bound to troponin and Troponin bound to tropomyosin are components of the mechanism that allow actin and myosin to interact in a controlled manner through the regulation of calcium ions, which enables muscle contraction to occur.
ATP is the energy currency of the body and, during the cross-bridge cycle, it is hydrolyzed by the myosin head in order to generate the energy needed to drive movement. The Sarcolemma is the cell membrane of striated muscle fibres, which encloses the fibre's cytoplasm or sarcoplasmic reticulum.
Hence, the correct option is B. Amyosin head bound to actin.
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a large and increasing number of genetic tests are available to prospective parents and children. even as these testing methods become more and more sophisticated, what is one thing technology will never solve?
Answers
One thing technology will never solve is the emotional and psychological impact of genetic testing. No matter how sophisticated the testing methods become, they will never be able to predict how an individual will react to the results of a genetic test.
This is because every person has their own unique emotional and psychological makeup, and no technology can take that into account. Furthermore, the results of a genetic test can have long-term implications for the individual, such as their self-image, their relationships with family and friends, and even their career choices.
All of these are deeply personal issues and can only be addressed by the individual themselves. Therefore, technology will never be able to fully understand or solve the emotional and psychological impact of genetic testing.
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explain why most enzymes perform poorly at low temperatures
Answers
Answer:
Due to Kinetic energy
Explanation:
At low temperatures enzymes are simply inactive. As temperature is increased the enzymes and substrate gain kinetic energy
does regressive evolution support or invalidate the theory of evolution?
Answers
Regressive evolution supports the theory of evolution.
The theory of evolution was first proposed by Charles Darwin. It states that evolution is based on the idea of survival of the fittest. This is better known as natural selection.
Natural Selection is the process by which a species will, over time adapt to its environment. This occurs because the organisms whose traits are not well adapted or useful for survival in the environment will not survive and therefore not be able to reproduce. Over time this will remove the traits of said individuals from the gene pool.
Regressive evolution is the process of evolution by which a species will discard unneeded traits. This idea goes hand in hand with the process of natural selection, and therefore supports the theory of evolution because they all include the purge of unused or negative traits from the gene pool.
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stion: Will human activity impact the sustainability of a major ecosystem (Biosphere) on Earth?
Answers
Land-use change: Humans may destroy natural landscapes as they mine resources and urbanize areas. This is detrimental, as it displaces residing species, reducing available habitats and food sources. ... This can negatively effect an ecosystem because the introduced species may outcompete native organisms and displace them.(Khan)
Q2.
A student investigated the time taken for amylase to breakdown a 10% starch solution into glucose at
37°C. The student repeated the investigation five times.
Figure 11 shows the results.
time taken for amylase to produce glucose (s)
test 1
120
test 2
125
test 3
110
test 4
115
test 5
118
Figure 11
Calculate the rate of amylase enzyme activity for the 10% starch solution.
Answers
The rate of amylase enzyme activity for the 10% starch solution can be calculated by taking the average time taken for amylase to breakdown the starch solution into glucose.
Average time = (120 + 125 + 110 + 115 + 118) / 5 = 117.6 s
Rate of amylase enzyme activity = 1 / Average time = 1 / 117.6 s = 0.0085 s^-1
Therefore, the rate of amylase enzyme activity for the 10% starch solution is 0.0085 s^-1.
which of the following is an accurate description of what science is.
Answers
Who did Darwin send his specimens to, back in England?
Answers
Answer:
Who did Darwin send his specimens to, back in England? Richard Owens
Explanation: