1. Two pea plants, one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds, produce F1 progeny that has round, yellow (RrYy) seeds. When F1 plants are selfed, the F2 progeny will have a new combination of characters. Choose the new combination from the following. (i) Round, yellow (ii) Round, green (iii) Wrinkled, yellow (iv) Wrinkled, green (a) (i) and (ii) (b) (i) and (iv) (c) (ii) and (iii) (d) (i) and (iii)
ScienceClass 10CBSEAnswered 27 Mar 2026
Answer
Soln: The answer is
The new combinations in F2 progenies will be round yellow and wrinkled green. When F1 progeny that has round yellow (RrYy) seeds is selfed, we get the phenotypic ratio of 9:3:3:1 for round yellow, round green,
wrinkled yellow and wrinkled green seeds in the F2 generation.