Question

Which pair of features represents polygenic inheritance?

• A. Human eye colour and sickle cell anaemia
• B. Hair pigment of mouse and tongue rolling in humans
• C. ABO blood groups, in humans and flower colour of Mirabilis jalapa
• D. Human height and skin colour

Answer 1

The correct option is D Human height and skin colour

A.Human eye colour – polygenic inheritance.

Sickle cell anaemia – Lethal genes.

B.Hair pigment of mouse – Lethal genes

Tongue rolling in humans – Polygenic inheritance.

C.ABO blood groups in humans – Multiple alleles

Flower colour of Mirabilis jalapa – Incomplete dominance.

D.Human height. – Polygenic inheritance

Human skin colour – Polygenic inheritance

So, the correct option is ‘ Human height and skin colour’.