Which type of melanin is produced by the version of the MC1R gene most prevalent among people of African ancestry?

Answers

Answer 1
Answer:

The MC1R gene gives directions for producing a protein known as the melanocortin 1 receptor. This receptor performs an essential function in normal pigmentation. The receptor is mainly situated on the melanocytes surface that are unique cells, which generate a pigment known as melanin.  

Melanin is generated by the melanocytes located in the basal layer of the epidermis. The MC1R monitors the production of both pheomelanin and eumelanin.  


Answer 2
Answer:

Final answer:

The MC1R gene most prevalent among people of African ancestry produces eumelanin, a type of melanin. This melanin is responsible for their darker skin pigmentation, especially with UV exposure which stimulates melanocyte's production of more melanin.

Explanation:

The type of melanin produced by the version of the MC1R gene most prevalent among people of African ancestry is eumelanin. Melanin occurs in two forms: eumelanin which is black or brown and pheomelanin which provides a red color. People of African ancestry produce more melanin, specifically eumelanin, which provides a darker pigmentation. The MC1R gene plays an essential role in the synthesis of melanosomes, causing skin pigmentation.

For instance, when skin is exposed to the Ultraviolet (UV) rays from the sun, the UV rays stimulate keratinocytes to secrete chemicals which in turn stimulate melanocytes. The melanocytes increase the production of melanin which results in the darkening of the skin, also known as sun tan.

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Answer:one,two,four

Explanation:

Answer:

tsunamis Yeah

El Niñolarge Yeah

asteroid and comet impacts Nope

volcanic eruptions Yeah

global warming Nope

Explanation:

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#5. The Rabbitt population is followed by an increase in the lynx because the rabbit is the lynxs food when there are more rabbits more lynx will come                                                                                                                       #7.when the rabbits population decreases the lynxs decreases because the rabbit is the lynxs food source and when their is no food the starve this is called famine                                                                 #6 whenever the population of the lynx rises the rabbits decreases because it is being eaten by the lynx                                                    #8  Whenever the lynx population drops the rabbits rise because the rabbit has less chance of being preyed upon                                                                              

The process that occurs when a section of a chromosome breaks off and reattaches to another chromosome is known as _______.

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translocation
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What Do You Get When You Multiply An Object's mass times the acceleration?

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Hey There!

When you multiply an objects mass times the acceleration, you get the net force. So, net force is, objects mass times the acceleration.

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Mass times the accelertation equals the force. (F)=MxA

Mendel’s law of independent assortment is best demonstrated by which of the following observations?A. When two sexually reproducing organisms produce offspring, each offspring has a unique set of genes.
B. Organisms that reproduce asexually have offspring that are genetically identical to the parent offspring.
C. Genetic mutations can alter some of the traits of an organism, while others remain unchanged.
D. After a unicellular organism divides, each of the daughter cells is capable of living independently of the other.

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Answer:

A.

Explanation:

It izz wat it izzzz!!!

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What is the primary role of the endocrine system

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The primary role of endocrine system include :

It secretes chemical messengers called hormones directly into the blood stream.

These hormones control and regulate almost every bodily functions such as;

  • Metabolism
  • Growth and development
  • Reproduction
  • Blood pressure
  • Appetite
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What is endocrine system?

Endocrine system is a network of glands called endocrine glands that are present throughout the body.

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The main 'job' of the endocrine system in most animals is to moderate and send out chemicals that affect other organs, tissues, and organ systems of the body.