Question

Albinism is a recessive genetic condition in which a person lacks pigment that gives color to the skin. If the allele for albinism is represented as "a," and the functional allele is represented as "A," what will be the genotype of a person with albinism?

Answer 1

Answer:

The correct answer would be - "aa".

Explanation:

Albinism is an autosomal recessive genetic condition which means it will be expressed only if both alleles for the pigmentation are recessive. If a single copy of the dominant allele present with the recessive allele the expression of the recessive allele would be masked by it and skin will be pigmented however they will act as carriers of the condition.

There would be three condition or three allele combination:

AA - no recessive allele so no albinism

Aa - dominant allele with recessive allele which means carrier but pigmented skin

aa - both alleles are recessive so the albinism will be expressed.