Two pea plants one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds produce F1 progeny that have round, yellow (RrYy) seeds. When F1 plants are selfed, the F2 progeny will have 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)
The correct answer is (c) (ii) and (iii). When F1 plants (RrYy) are selfed, the F2 progeny will have new combinations of round green and wrinkled yellow seeds.
Explanation:
Round, yellow: (i) is not a new combination, as it’s the phenotype of the F1 generation.
Round, green: (ii) and Wrinkled, yellow (iii) are new combinations of traits, resulting from the independent assortment of the R/r and Y/y alleles.
Wrinkled, green: (iv) is also a new combination, but it’s not one of the options listed in the answer.
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