Plant-Kingdom Question 736
Question: Which of the following structures in Pinus are haploid?
Options:
A) Megaspore, integument, root
B) Endosperm, megaspore, pollen grain
C) Pollen grain, leaf, root
D) Megaspore, endosperm, embryo
Show Answer
Answer:
Correct Answer: B
Solution:
Because endosperm is haploid (n) and formed before fertilisation, and the megaspore mother cell divides reductionally to form a linear tetrad of haploid megaspores, and microspore (= pollen grain) is the first stage of the gamet0phyte (n).
BETA
