HEREDITY
LAW OF SEGREGATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Aa
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red hair
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heterozygous
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BB
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Detailed explanation-1: -Red hair is the null phenotype of MC1R.
Detailed explanation-2: -RHC phenotype is characterized by fair pigmentation (fair skin, red hair and freckles), and by sun sensitivity (poor tanning response and solar lentigines).
Detailed explanation-3: -A phenotype is your version of a trait. Like curly vs straight hair. An allele is the term geneticists use to refer to a version of a gene. For example, a hair texture gene might come in two versions: curly or straight.
Detailed explanation-4: -This gene has several versions (alleles), one of which is related to red hair. Red hair is a recessive trait, which means that only those who get two “redhead” versions of the gene, one from the mother and one from the father, will have red hair.
Detailed explanation-5: -In humans, phenotype examples include earwax type, height, blood type, eye color, freckles, and hair color.