passwella.
Menu

WAEC Biology 1999 Question 9

Question 9

Reproduction in Plants

Use the information on the stages involved in conjugation to answer this question.
I. Transfer of one cell content into the adjacent cell II. Formation of a conjugation tube III. Secretion of thick wall to form a zygospore IV. Formation of a protuberance V. Germination of a filament
Which of the following arrangements is the correct sequence of the process?

  1. A.II, I, IV, V and III
  2. B.IV, II, I, III and V
  3. C.IV, I, II, V and III
  4. D.V, II, III, IV and I
Show the answer and explanation

Answer: B (IV, II, I, III and V)

Explanation

Bumps grow out first (IV), join into a tube (II), the contents pass across (I), the zygote forms a thick-walled zygospore (III) and later germinates into a new filament (V).