THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It interacts with proteins that control eye color.
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It codes for mRNA that directly determines eye color.
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It codes for proteins that directly determine eye color.
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It produces pigments that make up eye color.
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Detailed explanation-1: -Eye color is determined by variations in a person’s genes. Most of the genes associated with eye color are involved in the production, transport, or storage of a pigment called melanin. Eye color is directly related to the amount of melanin in the front layers of the iris.
Detailed explanation-2: -A region on chromosome 15 has a big part in determining eye color. The OCA2 and HERC2 genes are located in this region. The OCA2 gene (formerly called the P gene) provides instructions for producing the P protein located in the melanocytes (specialized cells that produce melanin).
Detailed explanation-3: -The cell builds proteins using instructions found in genes. Specifically, the order of nucleotides in a gene determines the order of amino acids in one or more proteins. An organism has many different genes, and so can produce many different proteins. These proteins have functions that affect the organism’s traits.