First slide

Inheritance of Two Genes

Question

Select the correct statement.

Moderate

A

ABO blood group in humans is an example of incomplete dominance.
B

Starch synthesis in pea is controlled by a pleiotropic gene.
C

All the genes present on same chromosomes are always tightly linked.
D

Genes present on homologous chromosomes always show independent assortment.

Solution

ABO blood group in humans is an example of co-dominance.
All the genes present on same chromosome are not always linked.
Genes present on homologous chromosomes may show crossing over. Therefore, its incorrect to say that genes present on homologous chromosomes will always show independent assortment.

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