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The diagram above is an illustration of genetic cross between two parents. The parental gametes...

Biology
WAEC 2024

The diagram above is an illustration of genetic cross between two parents. The parental gametes I, II, III and IV gave rise to the offspring below. Study it and answer questions 43 and 44.

Gametes I, II, III and IV, respectively are 

  • A. T,T,T and t
  • B. T, t, t, and t
  • C. T, T, t and t
  • D. T, t, T and t
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Correct Answer: Option B
Explanation

First try to retrace the offspring back to get the gametes. What we got were T, t, t, and t

(See diagram above.)

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