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This is called sickle cell anemia. The mutation here is a valine in place of glutamic acid at position 6 of the B-globin chain. The resulting mutated hemoglobin is called HbS. When deoxygenated the HbS changes conformation such that it polymerizes and crosslinks, misshaping the cell.
The hemoglobin can still function. It can still bind and unbind oxygen, and therefore deliver oxygen. In fact when HbS is oxygenated the RBC will return to its normal shape it is just the deoxygenated form of HbS that causes the sickling.
Related Questions
The structural and functional units of the kidney are called
Answers
Answer:
The structural and functional units of the kidney are called nephron.
Fun Facts about Nephron:
Nephron is the structural and functional unit of the kidney.
Its primary purpose is to maintain the concentration of water and soluble chemicals such as sodium salts in the blood by filtering it, reabsorbing what is needed, and excreting the excess as urine.
The glomerulus and renal (kidney) tubule are the two primary structures in each nephron. Each human kidney contains around 1,000,000 nephrons.
The structural and functional units of the kidney are called the nephrons. Each human kidney contains 8-10 lakhs nephrons.
What do you mean by Kidney?A Kidney may be defined as a pair of bean-shaped organs that eliminate waste and extra water from the blood and help keep chemicals balanced in the body.
Each nephron contains two structures i.e. Glomerulus and Tubules. The Glomerulus is a tough capillary through which a large amount of fluid is filtered from the blood.
Tubules are the other structure of the nephron in which the filtered fluid is converted into the urine.
Therefore, the structural and functional units of the kidney are called nephrons.
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Hwo many chromatids does each chromosome have in anaphase of meiosis i
Answers
Answer:
two sister chromatids
Explanation:
There are two sister chromatids that each chromosome have in the Anaphase of meiosis I.
What do you mean by Chromatids?Chromatids may be defined as one of the two similar halves of a chromosome that has been duplicated in preparation for cell division.
During Meiosis I, each of the daughter cells is haploid (n) in nature and consists of 23 chromosomes. Each chromosome comprises of 2 sister chromatids.
Therefore, there are two sister chromatids that each chromosome have in the Anaphase of meiosis I.
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How many chromosomes should be in each diploid cells after mitosis.
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Answer:
46 chromosomes
Explanation:
46 chromosomes should be in each of these diploid cells after mitosis.
Why does aneuploidy in animals generally result in phenotypic abnormalities?.
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Answer:
I think it results in an imbalance of gene products from affected chromosomes, which alters normal development
Explanation:
Why: Why is aneuploidy in animals generally detrimental?
Explanation and Answer: Well it does result in an imbalance of gene products from affected chromosomes, which modify normal development. It results in DNA replication mistakes due to the aberrant number of chromosomes.
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How are the bodies of the three animals similar to one another? How are they different?
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Answer:
How are animals similar? All animals are made of many cells. Most animals can move on their own. Like all living things, animals grow, change, reproduce, and respond to their environment.
Animals are made up of several cells. Most animals have independent movement. Animals develop, transform, reproduce, and react to their surroundings like all other living creatures do.
What are considered as animals?Any eukaryotic multicellular organism of the biological kingdom Animalia is referred to as an animal.
The majority of creatures in this kingdom lack a cell wall, are heterotrophic, motile, have specialised sensory organs, and originate from blastulae during embryonic development.
According to some, the fundamental distinctions between humans and other animal species are our capacity for complex reasoning, our use of complex language.
Also, the capacity for problem-solving, and the capacity for introspection (this means describing your own thoughts and feelings).
Multiple cells make up an animal. The majority of animals can move on their own. Like all other living things, animals grow, change, reproduce, and respond to their surroundings.
Thus, this way, many animals contrasts each other.
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A blood sample containing erythrocytes with only surface antigen B on the plasma membrane is ABO blood type ______.
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Answer:
ABO blood type B
Explanation:
The blood sample only contains B as a surface antigen (simplified as the sugars clinging to the blood embedded halfway inside) making any other blood type unviable. B would be the only option.
Which of the following relationships is symbiotic?
A group of ants work together to build an underground nest.
A tick latches on to the body of a dog and feeds on the dog's blood.
Abee pollinates a flower while feeding on the flower's nectar.
A remora attaches to the body of a shark and feeds on scraps when the shark eats.
Two male red-winged blackbirds fight over territory.
A male bluebird and a female bluebird provide care for their offspring.
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What are the thin fibers of the human nervous system called?.
Answers
Neurons send signals to other cells through thin fibers called axons, which cause chemicals known as neurotransmitters to be released at junctions called synapses
Answer:
Axons should be your answer.
Explanation:
The individual thin fibers in which neurons send signals to other cells are axons. When individual fibers are bundled together, it is called nerve fiber.
how do homologous structures show common ancestry?
Answers
Answer:
Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used to determine species' relatedness.
Explanation:
The correct statement is C. They demonstrate how different species differ and which creature created the structure first. Anatomical characteristics observed in several species that have a common ancestor include what are known as homologous structures.
Although these structures may have diverse purposes in many creatures, their similarities suggest that they had an ancestor.
The anatomical characteristics of several creatures may be compared to find homologous structures and deduce evolutionary links.
Because diverse kinds of creatures have homologous features, it is likely that these qualities were passed down from a common ancestor.
Similarity levels and common anatomical patterns might shed light on a species' evolutionary path.
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A mother has hemophilia, and the father is unaffected. What is the probability that their son will have hemophilia? Their daughter?
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Answer:
A 25% (one in four) chance of having a son with hemophilia. A 25% chance of having a son with normal blood clotting. A 25% chance of having a daughter who is a carrier. A 25% chance of having a daughter who has hemophilia.
Explanation:
In the extremely rare event that both the mother and the father have the affected X chromosomes then there is a 50% chance that their sons will be born with hemophilia. There will be a 50% chance their daughters will be carriers and a 50% chance they will also have the condition.
Under what circumstances would a food pyramid be a more useful model than a food chain?
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Answer:
A food chain represents the linear relationship between organisms for food. On the other hand, a food pyramid represents the optimal number of servings to be eaten each day from each of the basic food groups.
Food pyramid represents the total number of food to be eaten each day from each of the basic food groups .A food chain represents the linear relationship between organisms for food.
What is food chain?
Food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.
What is food pyramid?Food pyramid is a depiction of the optimal number of servings to be eaten each day from each of the basic food groups.
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How is ocean acidification important to the world?
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Answer:
Ocean acidification is already impacting many ocean species, especially organisms like oysters and corals that make hard shells and skeletons by combining calcium and carbonate from seawater.
A rural, forested area receives a lot of rain in a short amount of time. What would most likely cause potential flooding in the area?
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The most likely cause potential flooding in the area will be saturation of the ground with water.
What is Flooding?
This is defined as a situation in which an overflow of water submerges land that is usually dry.
When the ground is already saturated with water, a forested area receiving a lot of rain in a short amount of time will lead to flooding.
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In what phase of meiosis does crossing-over take place? why is crossing over important?.
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Answer:
prophase I
Explanation:
This is important because it increases genetic variation.
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pls mark brainliest
How is gravity simulated on the hermes spacecraft?.
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Answer:
A section of the spacecraft is slowly rotated in order to simulate the force of gravity.
Explanation:
The rotational force of the spacecraft makes an artificial sort of gravity, which can be altered by changing the speed of the spinning or by moving the rotating part further/closer to the center point of rotation.
Severe flooding in an area caused a population of minnows to become split into two separate ponds. Prior to the separation, the male minnows all had a moderate number of spots.
Following the separation, the first pond was filled with larger fish that fed on minnows, so male minnows with fewer spots were better able to avoid detection by predators. The minnows in the second pond, however, had very few predators, and female minnows in this pond preferred to mate with males that had the most spots.
After many generations, the two minnow populations evolved into different species and could no longer interbreed.
Fish Species Average # of Spots
Original Species four to six
New Species 1 zero to two
New Species 2 eight to ten
Which of the following best describes why the two minnow populations evolved into separate species?
A.
Natural selection acted upon the traits of the minnows in the first pond only, causing these fish to evolve into a new species with new adaptations.
B.
Natural selection acted upon the traits of the minnows in the second pond only, causing these fish to evolve into a new species with new adaptations.
C.
The same selective pressures were acting upon both populations, leading to a decrease in genetic variation and the formation of two new species.
D.
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species.
Answers
please what is meant by photosynthesis
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Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in carbohydrate molecules, such as sugars and starches, which are synthesized from carbon dioxide and water, In most cases, oxygen is also released as a waste product that stores three times more chemical energy than the carbohydrates. Most plants, algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth.
Explanation:
Viruses ___________________________________________________.
are living because they reproduce with help from a host.
are not living because they do not grow.
are not living because they do not respond to stimuli.
are living because they have organelles.
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An organism must have provided all of the following to survive EXCEPT
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Answer:
The answer is the one that is not on this list
List of criteria for a living organism:
1.) Can Reproduce
2.) Goes through homeostasis
3.) Needs Energy
4.) Is organized/ has cells
5.) Grows and Develops
6.) Responds to stimuli.
Explanation:
What do we call a natural resource if it can be used up faster than it can be replaced?
a: depletable
b: renewable
c: sustainable
Answers
Renewable is energy we can “renew” or “get back”.
Sustainable is if it “sustains” or works for the present and doesn’t affect the future.
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Can someone please help me with these three questions for my biology project?
It asks for a 250-word report on these questions. Doesn't have to be 250 but I'd really appreciate it.
What happens in the light reaction of photosynthesis?
What happens in the dark reaction of photosynthesis?
What five factors affect photosynthesis and its rate? How?
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Answer:
Explanation:
light reaction - chlorophyll absorbs light energy
dark reaction -
happens in the stoma when light is not presentfactors - chlorophyll, carbon dioxide concentration, light intensity , temperature ,water
explain why camouflage and mimicry can increase an organism’s fitness
Answers
Camouflage: Structural adaptation that enables an individual to blend with its surroundings, and that allows an individual to avoid detection by predators. … Camouflage and mimicry are both adaptations because they increase the likelihood of an individual evading predation long enough to reproduce.
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The physical appearance of an organism is known as its
A. genotype
B. phenotype
C. allele
D. testcross
Answers
Answer:
B.Phenotype
Explanation:
The term "phenotype" refers to the observable physical properties of an organism; these include the organism's appearance, development, and behavior. An organism's phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
urgent help would be appreciated
Answers
Lily is doing a science experiment with a substance in a sealed jar. At first, the substance’s molecules are moving around each other. What will happen to Lily’s substance if she transfers energy into the substance and causes a phase change? After the phase change, the substance’s molecules will move . . . *
1 point
a. faster, and the substance will be a liquid.
b. faster, and the substance will be a gas.
c. slower, and the substance will be a solid.
d. slower, and the substance will be a liquid.
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Answer:
I think is B because when you transfer a substance through energy the practicals increase
Purple petal color in pea plants is dominant to white petal color. Two heterozygous pea plants are crossed. What is the ratio of the offspring with white petals to the total number of offspring?
Answers
Answer:
25%
Explanation:
crossing two heterozygous plants would look like this Pp x Pp
making a chart
P p
P PP Pp
p Pp pp
what this means is that the capital P isdminant so thats what will show is the dominant purple petal whereas lower case p is the ressecive white petal
this means 25% of offspring will be white :)
Which repair process in e. Coli uses visible light to repair thymine dimers?.
Answers
Answer:
photoreactivation repair
Explanation:
Photoreactivation utilizes the enzyme photolyase to break the bonds formed during pyrimidine dimerization. A thymine dimer produced by UV irradiation is bound by photolyase. Visible light energy is absorbed by photolyase and is redirected to break the bonds forming the dimer.
In addition to bacteria, this DNA repair mechanism is also found in single-celled eukaryotes, plants, and some animals such as Drosophila.
One support of the behavioral perspective is that it is backed by strong and extensive research. please select the best answer from the choices provided t f
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The statement one support of the behavioral perspective is that it is backed by strong and extensive research is definitely true.
What do you mean by Behavioral perspective?Behavioral perspective may be defined as the process of all acting throughout life as a result of some form of motivation or incentive.
The behavioral perspective always deals with the behavior of an individual with respect to any stimulus, which may be directly or indirectly associated with that individual.
Therefore, statement one support of the behavioral perspective is that it is backed by strong and extensive research is definitely true.
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Why is it important to continuously monitor seismic data?
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Answer:
determining the frequency of occurrence of earthquake activity, evaluating earthquake risk, interpreting the geological and tectonic activity of the area, and providing an effective vehicle for public information and education
Explanation:
I looked it up
In photosynthesis, what type of energy do we end up with?
I need the answers asap
I will mark it
Answers
Explanation:
Adenosine triphosphate energy
Answer:
In photosynthesis, light energy is converted to chemical energy.