Waec 2023 Biology Question 4

Practice essay / theory question 4 from the 2023 Waec Biology examination. This question covers General .

Waec 2023 Biology Essay / Theory

Topic: General

Question 4 WAEC • 2023 • BIOLOGY • essay

Question Parts

( a )

Complete the following Punnett squares of a dihybrid cross between two rats. One has black fur (BB) and short tail (tt), the other has brown fur (bb) and long tail (TT). \(\begin{array}{|c|c|c|c|c|} \hline \text{X} & \text{Bt} & & & \\ \hline & & & & \\ \hline \text{bT} & & & & \\ \hline & & & & \\ \hline & & & & \\ \hline \end{array}\)

( b )

How many of the offspring will have: (i) black fur and short tail; (ii) brown fur and long tail; (iii) black fur and long tail; (iv) brown fur and short tail?

( c )

If there were twenty (20) chromosomes in the leaf cell of a plant, how many chromosomes would be in each of the following cells of the plant? (i) pollen grain (ii) guard cell (iii) ovule (iv) root cell

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About This Question

This is Waec 2023 Biology Question 4. It is one of the essay questions from the 2023 Waec Biology examination.

The question covers General .

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