why is being heterozygous for sickle cell anemia considered an advantage?​

Answers

Answer 1

Answer: They may be maintained by heterozygote advantage

For example, the allele that causes sickle cell anemia is deleterious if you carry two copies of it. But if you only carry one copy of it and live in a place where malaria is common, the allele is advantageous because it confers resistance to malaria.

Explanation:

Hope this helped


Related Questions

Explain why hormone-producing cells are always located in close proximity to
capillaries.

Answers

Answer:

Hormone Signaling The hormones then diffuse to the bloodstream via capillaries and are transported to the target cells through the circulatory system. This allows hormones to affect tissues and organs far from the site of production or to apply systemic effects to the whole body.

The sides of the DNA ladder are made of two molecules that alternate. The alternating molecules are __?__ and __?__.

Answers

Answer:

Sugar and phosphate

Explanation:

sugar and p h o s p h a t e

Mitochondria are cell structures that contain a small quantity of DNA.
Scientists are sequencing the DNA of one particular gene in mitochondria to
help identify different species of many animals including myriapods. The
sequences that they find are called ‘barcodes’.
(i) State the part of the cell that contains most of the DNA.
[1]
(ii) Suggest how DNA barcoding might be useful in the classification of animals,
such as myriapods.

Answers

The part of the cell that contains most of the DNA is the mitochondria.
The use of the DNA barcoding is that by comparison with a reference library such as DNA sections an individual sequence can be used to uniquely identify an organism to a species just like how a supermarket scanner uses the black stripes of the UPC barcode to identify an item

Which organelle is this?

Answers

That is a chloroplast.

Hope this helps

What are two types of Buddhism?

Answers

There are two main divisions in Buddhism: Theravada Buddhism and Mahayana Buddhism.

Answer:

C) Mahayana and Theravada

on edge 2022

Hi all!
Pls help me in these 2 simple questions.....
Thanks in advance!

Answers

Answer:

ans 1. A, H, O, T, U. is not show lateral inversion

ans 2. concave mirror: Concave mirror is used by dentist, solar furnace, reflector of a torch, etc.

convex mirror: Convex mirror is used in rear view mirrors.

Fenómeno que consiste na combustão de grandes áreas florestais e conduz à libertação de grandes quantidades de CO2 para a atmosfera.

Answers

Answer:

Wildfires.

Explanation:

Wildfires is the phenomenon that causes combustion of large forest areas and leads to the release of large amounts of CO2 into the atmosphere. Wildfire occurs naturally as well as carelessness of humans that leads to the destruction of large area of forest and the habitat of wild animals also destroyed which compels them to migrate from that region. This wildfires produced high amount of carbondioxide gas in the atmosphere that is the main cause of air pollution.

what is mentruation? give example​

Answers

Answer: a cyclical discharging of blood

Explanation:

What are proteins made of, and how many options are there for these building blocks?

Answers

Answer:

Amino Acids

Explanation:

They are building blocks for proteins.

I just don't know what each one is

Stimulus: Ca2+ ion levels in blood are too low
•Sensor: •Control center:
•Effector and action(s):
•Negative feedback:


•Stimulus: Ca2+ ion levels in blood are too high
•Sensor:
•Control center:
•Effector and action(s):
•Negative feedback:

Answers

A. Beacuse effector and actions and sensor control center= stimulus so m=347839.6

Since infrared light is not visible, colors were artificially assigned to the photo using the following scheme:

Color Photographed Wavelength
blue 1.05 μm
green 1.25 μm
red 1.60 μm

If all the galaxies shown were composed of the same kinds of stars and nebulae, then the reddest galaxies would
A.
be moving toward us the fastest.
B.
be moving away fastest.
C.
be youngest.
D.
contain the most hydrogen.

Answers

Answer: be moving away fastest

Explanation: I got it right in study island

Consider this plant cell. Which organelle is labeled A?

Answers

Answer:

image so we can answer the question?

Explanation:

What is the effect of inputting stem cells instead of body cells into the original system?

Answers

Explanation:

Stem cell research indicates that s.cells are cells that are not fully developed; in turn if researchers inject a patient with type 1 diabetes into the pancreas the result is that the pancreas produces it's own insulin eliminating the chances of spikes in the blood sugars of the patient & also long term effects of high blood sugars that effect all vital organs & nervous system.

Researchers were also using stem cells to limbs that were amputated or damaged resulting in the limb regenerating itself.

I have seen a mouse that had a human ear attached to its body.

Researchers were ordered by our government to cease the experiments because pharmaceutical companies were making more $$ on medicines to supposedly help diabetics or veterans to live a normal life..

Is this correct guys?

Answers

Yes it’s correct, study hard

Answer:

Yes its correct.

:)))))



What do you think the primary_impacts (the first and most major effects) of the earthquake would
have been?

2 Although it was not one of the most powerful earthquakes that has ever taken place; a lot of people
died in the insident in Pakistan-administered Kashmir. What features of the area do you think might
have contributed to the high death rate?
3
Many international agencies and the British military were involved in the aid effort after the
earthquake. What kind of aid and assistance do you think the British military would have been
involved in providing?

Answers

Answer:

Hi friend

I am from india!

Follow me on instàgram---> _puneet._.king

Which of the following best describes a mutation?

a change in a gene

a section of a chromosome that codes for a trait

anything that can damage a gene

a distinguishing quality that can be passed from one generation to another

Answers

a mutation is a change in a gene

if an organism's dna is made up of 30 cytosine, what percentage of its dna will be thymine

Answers

It will be 10%,

Because it is threefold and gives us 30%, that is, a third of 30%.

Name the major muscles

Answers

tongue, biceps, triceps, gluteus maximus

A typical virus is made up of 2 parts. Check all that apply.
A) Golgi Body
B) Nuclear envelope
C) Nucleic Acid
D) Capsid

Answers

Answer:

C) Nucleic Acid

D) Capsid

Explanation:

A virus is structure that is dependent on a living host to replicate itself. Viruses are majorly pathogenic in nature and have a structure that is made up of two parts namely: nucleic acid and capsid.

The nucleic acid, which can either be RNA or DNA holds the genetic information of the virus while the capsid is a protein coat that enclosed and protects the virus' genetic material. The capsid is also used during the infection life cycle of a virus where it helps the virus to attach to receptor cells on the host's cell membrane.

Which of the following would cause an error in DNA replication?
A. DNA polymerase pairing A with G
B. DNA ligase connecting chunks of DNA
C. Helicase making a replication fork
D. DNA polymerase checking the DNA

Answers

Answer:

A. DNA polymerase pairing A with G

Explanation:

Adenine (A) always pairs with thymine (T), and cytosine (C) always pairs with guanine (G).

DNA polymerase pairing A with G would cause an error in DNA replication. The correct option is A.

An error in DNA replication occurs when an incorrect nucleotide is inserted during the replication process.

DNA polymerase is responsible for synthesizing a new DNA strand by adding complementary nucleotides to the existing template strand.

It ensures the accuracy of replication by matching each nucleotide with its complementary partner (A with T and G with C).

If DNA polymerase pairs A with G instead of A with T, it results in a mismatched base pair.

This is considered an error in DNA replication since it introduces a mutation in the newly synthesized DNA strand.

The fidelity of DNA replication relies on the correct base pairing and proofreading mechanisms of DNA polymerase to minimize errors and maintain the integrity of the genetic information.

Thus, the correct option is A.

To know more about DNA replication, click here:

https://brainly.com/question/30111562

#SPJ5

PLZ HELP!!!!!
. Flattened, hollow folds and sacs of endoplasmic reticulum are called cisternae.
a. TRUE
b. FALSE

Answers

The answer is A . True because the ER is a network membranes that from hollow tubes flattened sheets , and round sacs . These flattens , hollow folds and sacs are called cisternae.

Answer:

true

hope this helps

have a good day :)

Explanation:

draw a line from each hormone in list A to the correct information in list B

Answers

Answer:

The correct answer would be -

FSH - used as fertility drugs to makes egg mature.

LS - stimulates the release of eggs.

Oestrogen - causes the lining of the womb to break down.

Explanation:

FSH is a hormone released from the pituitary gland and is the abbreviation of Follicle-stimulating hormone which controls the menstrual cycle and growth of eggs in ovaries. It is also used as a fertility drug that promotes the growth of eggs to mature it.

LS or Luteinising hormone is the hormone that is released from the pituitary gland and promotes the surge of the release of eggs.

Oestrogen is the hormone that helps females during puberty during the menstrual cycle to breakdown the lining of the womb.

what effect does pH of water have on radish seed germination?​

Answers

Explanation:

High pH negatively affected the germination rate of seeds from most species, but had no effect on the per cent germination of any of the species. The higher concentration of the nutritious solutions affected negatively the germination level and rate.

Answer:

A radish seed has a high percentage of germination in PH's 4-12 and a very low percentage of germination in PH 1-3 and PH 13-14.

Which is NOT an influencing factor for weather?

Precipitation
Temperature
Gravity
Natural features - oceans, land, mountains, etc.

Answers

The answer is to the question is gravity

3. What did Darwin conclude was the reason the Galapagos finches had different shapes and styles of beaks

Answers

Answer:

Charles Darwin had concluded that these birds had somehow evolved to adapt based on the island they were on. Each island had different food sources so if these finches wanted to survive they had to change. Each finch adapted to their environment due to forcefully evolving to survive.

Explanation:

Darwin concluded that the finches evolved to adapt to the environment to survive.

Does the Second Amendment need to be "revisited" in 2021? yes and why?

I need help pleasee

Answers

Answer:

It needs to be revisited because of the random acts of violence that it enables.

Explanation:

People that have access to weapons of mass destruction use them to kill people for no reason. For example, the sandy hook shooting, the recent Stoneman Douglas shooting, and the Christchurch shooting. All these shootings could have been prevented if there was stronger gun control. If people did not have access to automatic firing machine guns, less people would have died.

* DISCLAIMER *

All ideas expressed in this answer do not necessarily reflect my person views, they are meant for educational purposes, not to spark a debate about the 2nd amendment, do not get offended. (put this in cus some peeps crazy)

As a human advances in age, their nervous system cells rarely divide. Which stage of the cell cycle are those cells in?

A. metaphase
B. telophase
C. interphase
D. cytokinesis
E. mitosis
F. metaphase

Answers

Answer:

i think E mitosis

Explanation:

You are a wild rabbit and your species currently lives in desert. Most of the rabbits are brown but there are a few that are white. An asteroid hits the Earth and the environment you live in suddenly becomes very cold. It begins to snow leaving snow covering the ground. Will your species be able to adapt and line in the new environment? Explain and give details (what happens to white rabbits and brown rabbits.)
I need the brainylest answer and I will give a brainylest answer for this.​

Answers

Answer:

The species of wild rabbits that are brown would most likely have a harder time adapting than the white rabbits to the new environment.

Explanation: The brown rabbits are going to have a hard time living in the snow mostly because of their color. The brown rabbit is more likely to be able to live in the desert because they can camouflauge with their surroundings (the sand). Therefore, camouflaging in the white snow to escape a predator would be impossible for brown rabbits, since they could easily be spotted. Furthermore, the white rabbits would have a higher chance of survival since they can camouflage easier in the snow.

a student mixed a sample of urine from a person with benedict's solution and heated ,the colour changed to Orange. (b)what did the student conclude on the health status of the person​

Answers

Answer:

The person has high blood sugar.

Explanation:

Because benedict's solution tests for reducing agents, and since it changed its colour, reducing sugars(like glucose) is present.

What elements are needed to carry out photosynthesis? Select all that apply.

Answers

Answer:

You need carbon dioxide, sunlight, and water.

Explanation:

Hope this helps, although you did not provide options. :) <3

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