Question

In $F_2$ generation of quantitative inheritance, a ratio of 1:4:6:4:1 is obtained instead of

• A. 7:4:1:4
• B. 3:1
• C. 9:3:3:1
• D. 8:6:4:1.

Answer 1

The correct option is C 9:3:3:1

Polygenic inheritance is when more than one gene controls a character. It is also known as quantitative inheritance where two or more different pair of alleles which have a cumulative effect on governing quantitative characters.

Example of polygenic inheritance is white spotting in mice, green color in wheat. The ratio is 1:4:6:4:1 instead of normal 9:3:3:1.

So, the correct option is '9:3:3:1'.