Based on the inheritance pattern of the secretor trait,a secretor can have a genotype of
A)either Se/Se or Se/se.
B)either Se/Se or Se/ns.
C)Se/Se.
D)se/se.

Question

Quizplus · Accepted Answer

The secretor trait follows an autosomal dominant pattern of inheritance, which means that individuals who are heterozygous (Se/se) will also express the dominant trait (being a secretor). Therefore, a secretor can have a genotype of either Se/Se or Se/se. The option B is incorrect because an individual with the genotype Se/ns would be a non-secretor, not a secretor. Option C is incorrect because it implies that all secretors have a homozygous dominant genotype when in reality, they can also be heterozygous. Option D is incorrect because individuals with a homozygous recessive genotype for the secretor gene (se/se) are non-secretors, not secretors.

Based on the Inheritance Pattern of the Secretor Trait,a Secretor