First slide

Inheritance of One Gene

Question

In a cross made between true breeding tall pea plant and dwarf plant, 620 plants are obtained in F₂ generation. How many of these plants have the genotype similar to the genotype of F₁ generation plants.

Easy

A

155
B

320
C

620
D

310

Solution

In F₂ generation the plants with TT, Tt and tt genotypes are obtained in 1:2:1 ratio. F₁ generation plants have the genotype as Tt.
Hence the number of F₂ generation plants with genotype as Tt are $\frac{2}{4} \times 620 = 310$ .

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App