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23/09/2020 5:19 pm
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How many different types of gametes can be formed by F1 progeny, resulting from the following cross Tt × Rr?
(a) 4
(b) 8
(c) 27
(d) 64
1 Answer
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23/09/2020 5:21 pm
(a) 4
Explanation:
F1 generation is always heterozygous, e.g. TtRr, so there are 4 types of gamete formation i.e. TR, Tr, tR, tr.