Assume that you have a garden and some pea plants have solid leaves and others have striped leaves. You conduct a series of crosses [(a) through (e)] and obtain the results given in the table

Cross Progeny
solid striped
(a) solid × striped 55 60
(b) solid × solid 36 0
(c) striped × striped 0 65
(d) solid × solid 92 30
(e) solid × striped 44 0

Define gene symbols and give the possible genotypes of the parents of each cross.


(a) From cross (d), assume that solid (S) is dominant to striped (s): Ss × ss.
(b) SS × SS or SS × Ss
(c) ss × ss
(d) Ss × Ss
(e) SS × ss

Biology & Microbiology

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