Hemoglobin is the protein in red blood cells that binds oxygen. If a mutation occurs in the DNA that codes for hemoglobin, the structure of hemoglobin can change. The change in structure of hemoglobin can then change the shape of red blood cells, and some mutations can cause red blood cells to become sickle-shaped.
Sickled red blood cells carry less oxygen than normal red blood cells. What does this demonstrate about mutations in the DNA that codes for hemoglobin?
A.
These mutations can change the structure of oxygen so that it does not bind to hemoglobin.
B.
These mutations decrease the amount of oxygen available to bind with hemoglobin.
C.
These mutations are unable to affect the structure and function of hemoglobin.
D.
These mutations can change the structure and function of hemoglobin.
Answers
The fact that sickled red blood cells carry less oxygen than normal red blood cells demonstrates that the mutations in the DNA that codes for hemoglobin can change the structure and function of hemoglobin.
The correct option is D.
What is hemoglobin?Hemoglobin is a protein that is found in red blood cells that carries oxygen from the blood to cells and tissues where they are needed.
The function of hemoglobin is related directly to its structure.
A mutation in the gene that codes for hemoglobin will result in adefor ation of the structure of hemoglobin, us rendering it unable to transport oxygen effieciently.
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Related Questions
13) Using the graph 2, explain how temperature affects enzyme activity. Use the word denature.
Answers
At low temperature, enzyme activity is low and increases with the increase in temperature, but only up to a certain point, after which enzymes get denatured.
The graph shows that enzyme activity increases with the increase in temperature only up to a certain point, after which its activity rapidly decreases because enzymes are sensitive to changes in temperature.
Enzyme activity is low at low temperature, but the increase in temperature also increases its activity leading to increase in kinetic energy of enzymes and the rate of the chemical reactions.
If the temperature continues to increase, the enzyme activity rapidly decreases after reaching a maximum level and get denatured. Denaturation is a process where three-dimensional structure of a enzyme get disrupted, causing the enzyme to lose its biological activity at high temperature.
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A mosquito larva diving away from the surface of the water when it sees a shadow would be an example of which characteristic of life?
Question 10 options:
homeostasis
responding to the environment
growth and development
reproduction
Answers
Answer:
responding to the environment...
Explanation:
Answer:
responding to environment
Which of the following is a correct example of short-loop negative feedback?
A) Thyroid hormones inhibit the release of TRH.
B) Thyroid hormones inhibit the release of TSH.
C) TRH stimulates the release of thyroid hormones.
D) TSH inhibits the release of TRH.
E) TRH inhibits the release of TSH.
Answers
The following is a suitable illustration of brief negative feedback where TSH limits TRH release.
Does TSH interfere with TRH?The pituitary gland's TSH induces thyroid hormone release, which is triggered by the thyroid-releasing hormone TRH produced by the hypothalamus. Thyroid epithelial cells shut down as thyroid hormone blood concentrations rise because they suppress both TSH and TRH.
What stops the TRH from being released?Energy-demanding conditions, such as coldness and exercise, and the HPT axis are stimulated, but the axis is suppressed by conditions that disrupt the energy balance, such as fasting, inflammation, or long-term stress.
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What is the name of this diagram
Answers
Answer:
https://en.wikipedia.org/wiki/Diagram
Explanation:
Children inherit their blood type from their parents with
probabilities that reflect their parents genetic makeup. Suppose
that children of a couple have probability 1/4 of having blood type
A and inh
Answers
The concept of blood type inheritance is based on the presence or absence of antigens and antibodies in red blood cells. There are four major blood groups in humans, which are A, B, AB, and O. These blood groups are determined by the presence or absence of certain antigens on the surface of red blood cells.
Blood type inheritance follows a pattern of dominant and recessive traits. Children inherit their blood type from their parents with probabilities that reflect their parents genetic makeup. Suppose that children of a couple have a probability of 1/4 of having blood type A and inherit two alleles from each parent. One allele comes from each parent, and each allele is responsible for the expression of one antigen or another. Therefore, a child can inherit an A allele from one parent and an O allele from the other, resulting in blood type A. If a child inherits two A alleles from both parents, the blood type is A. Similarly, a child who inherits two B alleles will have blood type B. A child who inherits one A and one B allele will have blood type AB, while a child who inherits two O alleles will have blood type O. In summary, blood type inheritance is a complex process that follows the principles of genetics.
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State how the phylum Chordata differs from other animal phyla?
Answers
Where are the high tides if the moon is in first quarter?
Answers
The first and third halves of the moon, when the moon seems to be "half full," are when neap tides occur.
When tides are at their peak, where is the moon?Every month, at perigee, when the moon is closest to Earth, tidal-generating forces are stronger than usual, resulting in tide ranges that are higher than typical. When the moon is at its furthest distance from Earth, or apogee, about two weeks later, the lunar tide-raising effect is weaker and the tidal ranges are smaller than usual.
How does a first quarter moon affect things?The Moon is facing the Earth and Sun at a 90-degree angle during this phase. The Moon appears to be partially lighted and partially in shadow. We observe what appears to be the right half during the first quarter.
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I will mark you the Brainliest! What do they talk about on module 1 biology DBA?(9th, ASU Prep)
Answers
Answer:
If there's not a study guide, try going over your notes. Typically teachers let you choose what you talk about, but I'm in flvs. It's been a while since I've been in bio, but you got it. (last year) it's not as scary as you think. You can always look at the lesson while yall talk!
Explanation:
Hope this helps and good luck!
Answer:
There are quizlet flash cards you can use, sadly i cant put the link for you bc it wont let me.
which term is best described as the production of proteins based on the cell's genetic information?
transcription
Gene synthesis
Gene repression
gene expression
Answers
Transcription is best described as the production of proteins based on the cell's genetic information.
What is transcription?
Transcription is the process of turning a segment of DNA into RNA. DNA segments that have been translated into RNA molecules that can encode proteins are known as messenger RNA (mRNA). When extra DNA segments are translated into RNA molecules, non-coding RNAs are created (ncRNAs). Just 1% to 3% of all RNA samples contain mRNA. Human genome coding vs. non-coding DNA analysis reveals that while at least 80% of mammalian genomic DNA can be actively translated (in one or more types of cells), the majority of this 80% is non-coding RNA (ncRNA), while less than 2% of the mammalian genome can be actively translated into mRNA.
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Answer: Gene expression
Which physical evidence supports the evolution of earth due to chemical weathering?
A. Hammer shape of Bryce Canyon rocks.
B.Red color of Bryce Canyon rocks.
C.Streaks of the face of Wave Rock.
D. Concave shape of Wave Rock
Answers
Explanation:
how much is that I was in a while and it will get a new for me too 60th anniversary to the hospital for my family is so good and I don't think you should go for the next time we got home
Answer:
The correct answer is - Concave shape of Wave Rock.
The concave shape of Wave Rock is a nice physical evidence of deposition in the Earth's evolution. It is a land structure dated to 2.7 billion years old, and it is the basis around which the Australian continent formed. The Wave Rock structure is created by weathering of the surrounding area, and this is exactly what proves the deposition part, because Wave Rock was bellow the ground, and that was due to the deposition of the material around it over time, but since it is made out of much tougher material from its surroundings, the weathering lowered the surrounding terrain, while the bedrock remained to witness for the past.
Explanation:
The correct answer is - Concave shape of Wave Rock.
The concave shape of Wave Rock is a nice physical evidence of deposition in the Earth's evolution. It is a land structure dated to 2.7 billion years old, and it is the basis around which the Australian continent formed. The Wave Rock structure is created by weathering of the surrounding area, and this is exactly what proves the deposition part, because Wave Rock was bellow the ground, and that was due to the deposition of the material around it over time, but since it is made out of much tougher material from its surroundings, the weathering lowered the surrounding terrain, while the bedrock remained to witness for the past.
Explanation:
hope this helps pls give me brainliest
How will you describe briefly the effect of environment changes on adaptation and survival of species?
Answers
Changes in temperature ranges and rainfall indices, as well as changes in the abundance and distribution of predatory and prey species, diseases, and hosts, are all results of climate change, which has also affected the environment's physical and biological components.
What is the environment?All living and non-living objects that occur naturally, or in this example, without the use of artificial means, are included in the natural environment or natural world. The phrase is most frequently used concerning Earth or certain regions of it. The interplay of all living things, the climate, the weather, and the natural resources that have an impact on human existence and economic activity are all included in this ecosystem.Describe Environment change.Environmental change is the alteration or disturbance of the natural environment, most frequently brought on by human activities and ecological processes. Various factors, such as natural disasters, human interference, or animal interaction, can cause changes in the environment. The environmental change includes both physical changes and non-physical elements, such as an invasion of invasive species.Learn more about Environment change here:
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Which rocks are porous depending on the degree of cementation?
Halite
Shale
Dolomite
Conglomerate
Breccia
Coquina
Answers
Answer:Conglomerate
Explanation:
The rocks are porous depending on the degree of cementation are Conglomerate. Thus, option D is correct.
What the rocks depending on?
The rocks which are porous depending on the degree of cementation include the Conglomerate, Coquina, and Dolomite. Porosity is the measure of empty spaces in a particle which permits the passage of compounds such as water etc.
The rocks mentioned above have a lot of empty spaces which permits other substances to pass through them. The remaining rocks are composed of tightly held grains which reduces their porosity.
Igneous rock to metamorphic rock is a metamorphic change that requires significant heat and pressure. The mineralogical fabric is affected by this change. In moving from metamorphic to igneous rock, the melting temperature of a rock must be attained in order for magma to form.
Therefore, The rocks are porous depending on the degree of cementation are Conglomerate. Thus, option D is correct.
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Identify the choice that best completes the statement or answers the question.
A scientist concludes that a population of bison has reached the carrying capacity of the prairie where it lives. The birthrate and death rate of the bison population are equal to each other. What can be concluded about the rates of immigration and emigration?
A. The rates of immigration and emigration are equal to each other.
B. The rate of either immigration or emigration is zero.
C. The rate of immigration equals the birthrate.
D. The rate of emigration equals the death rate.
Answers
Answer:
b
Explanation:
the rate of emigration is most likely to be zero since the population continued to grow enough to reach its carrying capacity, even with an equal rate of birth and death within the population. it could be deduced that external bisons kept trooping into the population but no one was leaving.
What human activity contributes to air pollution?
construction
reforestation
habitat restoration
dam development
Answers
Answer:
construction
Explanation:
because more pollution is produced when the construction is in process and the pollutions are
1.noise pollution
2.air pollution etc...
The human activity that results in air pollution is construction. Please find how construction results in air pollution below.
What is air pollution?Air pollution is the release of toxic substances called pollutants into the atmosphere.
Pollutants can be released into the atmosphere as a result of anthropogenic or human activities. These activities include:
ConstructionMiningFossil burningTherefore, the human activity that results in air pollution is construction.
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what are the organs of the simple excretory systems of earthworms called?
Answers
The organs of the simple excretory systems of earthworms are called nephridia.
What is an excretory system?
Excretion is the method by which metabolic wastes and toxic substances are removed from the body by living organisms. The removal of waste substances from the body is known as excretion. Excretion is one of the most crucial biological processes since waste products can build up and cause harm if they are not eliminated. All organisms, including plants, animals, and humans, have excretory systems that assist in the elimination of waste products.
Nephridia are the organs of the simple excretory systems of earthworms. These are very basic excretory systems that are present in a variety of invertebrates. Nephridia are responsible for regulating the body's fluid and electrolyte balance, as well as excreting metabolic waste products such as ammonia.
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Earthworms have a simple excretory system consisting of a pair of Nephridia or nephridium (sing.) which are the organs of the simple excretory systems of earthworms.Nephridia in earthworms is the excretory organs and eliminates metabolic waste in the form of urine.
It also plays an important role in regulating the concentration of body fluids and salt balance. The earthworm has two pairs of Nephridia, the septal nephridia, and the pharyngeal nephridia.The septal nephridia consists of a coiled tube that runs from the dorsal body wall down to the ventral body wall in each segment of the earthworm. It is involved in excreting waste products from the body of the earthworm. The coiled tube has a funnel-like structure called the nephrostome, which collects body fluids and metabolic wastes.
The nephrostome leads into the tubular nephridium that removes the waste product from the body and excretes it to the outside through a small pore called a nephridiopore.Pharyngeal nephridia are located in the earthworm's pharynx and are involved in the excretion of nitrogenous wastes from the body. It is present in the earthworm's mouth cavity and helps in the discharge of waste from the pharynx to the outside of the body through the pharyngeal nephridiopore.
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When texting with your phone at waist level, your neck extensors are lengthened and will lose their ability to create tension Select one: O True O False
Answers
The statement "When texting with your phone at waist level, your neck extensors are lengthened and will lose their ability to create tension" is true.
The term "text neck" is used to describe the strain caused by tilting your head forward and down while texting, browsing social media, or watching videos on your phone or other mobile devices. Because the average adult head weighs about 10-12 pounds, holding it in a forward-leaning position for an extended period puts a significant strain on the neck muscles and spine.
When the head is tilted forward, the neck extensors become longer and lose their ability to produce tension. This can cause pain, soreness, and stiffness in the neck and shoulders. To avoid text neck, keep your phone at eye level as much as possible or take frequent breaks to stretch your neck and shoulders.
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The large diversity of shapes of biological molecules is possible because of the extensive presence of _____ in the molecules. view available hint(s)for part a nitrogen carbon sulfur oxygen hydrogen
Answers
According to the research, the correct option is carbon. The large diversity of shapes of biological molecules is possible because of the extensive presence of carbon in the molecules.
What is carbon?It is an element with atomic number 6 that usually appears in the atmosphere, in living organisms and as a mineral characterized by the ability to give rise to chains.
Its molecular structure gives it the ability to form stable bonds with other elements, forming large biological molecules such as the molecule (DNA) that can contain all the necessary information on how to produce and maintain any organism.
Therefore, we can conclude that according to the research, the correct option is carbon. The large diversity of shapes of biological molecules is possible because of the extensive presence of carbon in the molecules.
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In the food web shown below, which of the organisms can be classified as a producer?
Answers
Answer: The plants
Explanation: Because the producers get their energy from sunlight
Answer:
Wheat; Plant; Flower (the bottom three)
Explanation:
Plants are producers that create their own food and are food for other organisms.
study island i got it right
a group of organisms of the same species that live in a specific location is called a(n)
Community
B
Ecosystem
C
Population
D
Biosphere
Answers
Answer: C. Population
Explanation: A group of organisms of the same species that live in a specific location is called a(n) population.
i need help with this question please
Answers
Answer:
Raise the beams in less time
Explanation:
As the crane carries the beams in a lesser time its energy will reduce by time
what macromolecule evidence do scientist need to indentify if llizard species with simmilar body types evolved on all the islands?
Answers
To identify whether lizard species with similar body types have evolved on all the islands, scientists need to analyze macromolecules such as DNA or proteins.
These molecules hold important genetic information that can reveal the evolutionary relationships between different species. By comparing the DNA or protein sequences of different lizard populations, scientists can determine how closely related they are to each other.
For example, if the lizards on each island have similar DNA sequences or protein structures, it could suggest that they share a common ancestor and have evolved similarly in response to their environments. On the other hand, if the sequences or structures are very different, it could suggest that the lizards have evolved separately and have developed different traits.
Overall, macromolecule evidence is crucial in identifying evolutionary relationships and can provide valuable insight into the ways in which species have adapted to their surroundings.
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What does this mean for the body as a whole? *Be specific.
Answers
Answer:
Your body is all your physical parts, including your head, arms and legs
Identify one structural change to this organism’s body that occurs during its life cycle.
Answers
Given what we can see using the graphic attached to the image, we can confirm that the organism in question underwent many structural changes, one such change being the appearance of the front and hind legs.
What do we call a structural change?This involves the change in the physical aspects of the organism. This refers to the physical morphology of the creature at hand. Some such examples are the appearance of legs or the dissapearance of a tail.Therefore, given that a structural change is a change to the physical morphology of the organism such as the change of shape of the body, we can confirm that the appearance of the front and the hind legs are perfect examples of this.
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The air temperature rises in the stratosphere because of:
A. water vapor
B. nitrogen
C. carbon dioxide
D. increase in absorption of infrared energy
E. ozone
Answers
Answer:
E. ozone layer.
Explanation:
The pattern of temperature increase with height in the stratosphere is the result of solar heating as ultraviolet radiation in the wavelength range of 0.200 to 0.242 micrometre dissociates diatomic oxygen (O2).
What do we call different pairs of genes? (HH)
Answers
Answer:
heterozygous genes
Explanation:
1. The bio-molecule that is part of DNA is the carbohydrate. *
A: Agree
B: Disagree
2. Each nucleotide has 3 parts
A: Agree
B: Disagree
3. Deoxyribose is the base in DNA.
A: Agree
B: Disagree
4. Chargaff found the same four bases are found in the DNA of all organisms.
A: Agree
B: Disagree
5. Cytosine is always paired with thymine.
A: Agree
B: Disagree
6.The proportion of the four bases are the same for all organisms. *
A: Agree
B: Disagree
7. The base pairs are held together with hydrogen bonds.
A: Agree
B: Disagree
8. DNA strands on the double helix are identical to each other.
A: Agree
B: Disagree
9. Scientists Watson and Crick made the first 3D model of DNA.
A: Agree
B: Disagree
10.What is the complementary DNA strand to the following: CGT AAG CGC TAA TTA *
A: CGT AAG CGC TAA TTA
B: GCA TTC GCG ATT AAT
C: GCA UUC GCG AUU AAU
11. What is the complementary DNA strand to the following: ACT AAC GGT AGC TAG
A: TGA TTG CCA TCG ATC
B: ACT AAC GGT AGC TAG
C: UGA UUG CCA UCG AUC
What is the complementary DNA strand to the following: GGC ATT CGC GAT CAT
A: CCG TAA GCG CTA GTA
B: CCG UAA GCG CUA GUA
C: GGC ATT CGC GAT CAT
Answers
Answer:
1) Not sure.
2) True. Deoxyribose (5-carbon sugar), a phosphate group, and a nitrogenous base.
3) Disagree. There are 4 bases: adenine (A), guanine (G), thymine (T), and cytosine (C).
4) Not entirely sure, I think agree.
5) Disagree. Cytosine is always paired with guanine.
6) Agree.
7) Agree.
8) B. They are complementary to each other.
9) Not sure.
That's all I feel like doing.
Which of the following statements are correct about prokaryotic cells?
A
They do not have a well defined nucleus.
B
They do not have membrane bound organelles.
C
Their genetic material is called a nucleiod.
D
Their outermost layer is called plasma membrane.
Answers
Thee correct statement about prokaryotic cells are;
A. They do not have a well-defined nucleus.
B. They do not have membrane-bound organelles.
C. Their genetic material is called a nucleoid.
What are prokaryotic cells?Prokaryotic cells are a type of cellular organism that lack a well defined nucleus and membrane bound organelles.
They are one of the two main categories of cells, the other being eukaryotic cells.
Prokaryotic cells are typically smaller and simpler in structure compared to eukaryotic cells.
The following statements that are correct about prokaryotic cells are;
A. They do not have a well-defined nucleus.
B. They do not have membrane-bound organelles.
C. Their genetic material is called a nucleoid.
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Kelly is at the park when the sky grows dark and big raindrops begin to fall She wonders about the process that happens to water after precipitation
falls to the Earth's surface Rearrange the steps of the process of water collection into the correct order. Place the first step at the top and the last
Step at the bottom
Rain falls from the sky to Earth's surface.
Raindrops collect, forming puddles that cause runott to flow downhill
Streams flow over Earth's surface, carrying sediment along with them
Rivers flow until they meet a large body of water depositing sediment at the mouth.
Many rills flow together to form a gully.
Answers
Answer: 1,3,2,5,4
Explanation: cuz i said so
Genes act by directing the formation of:
somatic cells
specific enzymes
alleles
Answers
Answer:
The answer is specific enzymes
Is there any living thing that doesn't die, that can live forever?
Answers
Answer:
yes
Explanation:
Unicellular Organisms