Question

A tobacco plant heterozygous for recessive character is self-pollinated and 1200 seeds are subsequently germinated. How many seedings would have the parental genotype ?
A. 300
B. 600
C. 900
D. 1200

Answer 1

Correct Answer - B
`XXunderset( XXXxXxxx.......F_(1)"hybrid")underset(darr)xxXx.........."parents"
In `F_(1)` Generation half of the total offspring repesent parantal genotype i.e Xx.Therefore out of 1200 Seedling 600 Will have parantal genotype .