Question

Round seed trait (R) is dominant over wrinkled (r) seed trait in Pea. Heterozygous round seeded plant (Rr) is crossed with wrinkled seeded
plant (rr). What is the possible progeny?
(A) 302 round: 102 wrinkled
(B) 210 round: 95 wrinkled
(C) 105 round: 99 wrinkled
(D) 103 round: 315 wrinkled​

Answer 1

Answer :

C) 105 round : 99 wrinkled

Explanation:

Rr X rr

That gives in punnet chart will be



R r
r Rr rr

r Rr rr

Ratio between the cross come to be 1:1


Now look at the question

A) 302:102

Comes to be 3:1

B) 210 : 95

Comes to be 2:1

C) 105 : 95

Comes to be 1:1

D) 103 :315

Approximately 1:3

So the correct option is c

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Answer 2

C, 105 round: 99 wrinkled

For simple explanation look at the attachment

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