Your answer is two oppositely charged atoms!
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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.
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.
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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a mutation in the plumage that results in a white peacock
B.
a mutation causing an overly curved beak
C.
a mutation causing blue eyes
D.
a mutation causing the male to have a larger and more colorful tail
Which of the following statements is true?
All mutations are harmful.
Mutations are the only way to add new genes to a gene pool.
In substitution, DNA base pairs are deleted or lost during replication.
A mutation in the liver cell of a cat will be inherited by the cat's offspring.
Answer:
Mutations are the only way to add new genes to a gene pool.
Explanation:
This experimental data confirms the role of carbon dioxide in photosynthesis. Hence the correct option is d.
The experimental data supports the conclusion that the presence of carbon dioxide is crucial for photosynthesis. In Plant 1, where sodium hydrogen carbonate was added, carbon dioxide was released slowly due to its decomposition. This availability of carbon dioxide likely facilitated the process of photosynthesis, as evidenced by the positive starch test result in leaf 1.
On the other hand, in Plant 2, where soda lime was added, which absorbs carbon dioxide, the absence of starch in leaf 2 suggests a lack of this vital gas needed for photosynthesis. This underscores the importance of carbon dioxide in the photosynthetic process, confirming that it is a key factor for the synthesis of starch and other organic compounds in plants. Hence the correct option is d.
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Answer:
The answer is C. role of nutrients in photosynthesis
Explanation:
a. Cells
b. Tissues
C. Organs
d. Organ System