question_answer

In Mendelian monohybrid cross, phenotypic ratio in\[{{F}_{2}}\]is\[3:1\]. How many types of gametes are formed in\[{{F}_{1}}-\]generation?

A)  Two types

B)  Four types

C)  Eight types

D)  Only one types

Correct Answer: B

Solution :

                 

	R	r
R	RR	Rr
r	Rr	rr

\[\therefore \]     Red : white \[3:1\]