If 2 spot (S) is dominant to 4 spot (s), give the genotypes for the parents in the following crosses:

(a) 2 spot ? 2 spot yields 2 spot and 4 spot
(b) 2 spot ? 4 spot yields only 2 spot
(c) 2 spot ? 4 spot yields 2 spot and 4 spot
(d) 2 spot ? 2 spot yields only 2 spot
(e) 4 spot ? 4 spot yields only 4 spot What will be an ideal response?


(a) Ss ? Ss ? S_ + ss
(b) Ss ? ss ? Ss
(c) Ss ? ss ? Ss + ss
(d) SS ? S_ ? S_
(e) ss ? ss ? ss

Biology & Microbiology

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