Which of the following structures are haploid in gymnosperms ?

Question

Which of the following structures are haploid in gymnosperms ? (A) Pollen grain, megaspore, embryo (B) Pollen grain, megaspore, endosperm (C) Megaspore, leaf, root (D) Leaf, root, integument

Tardigrade Admin · Accepted Answer

In gymnosperms, the pollen grains and the megaspores are haploid and develop as a result of meiosis in the respective mother cells. The functional megaspore forms the embryo sac. The endosperm is formed prior to fertilisation, hence is haploid.

Q. Which of the following structures are haploid in gymnosperms ?

Pollen grain, megaspore, embryo

Pollen grain, megaspore, endosperm

Megaspore, leaf, root

Leaf, root, integument

In gymnosperms, the pollen grains and the megaspores are haploid and develop as a result of meiosis in the respective mother cells. The functional megaspore forms the embryo sac. The endosperm is formed prior to fertilisation, hence is haploid.