From the statements given below choose the option that is true for a typical female gametophyte.
i. | It is eight-nucleate and seven-celled at maturity. |
ii. | It is free-nuclear during the development. |
iii. | It is situated inside the integument, but outside the nucellus. |
iv. | It has an egg apparatus situated at the chalazal end. |
1. (i) and (iv)
2. (ii) and (iii)
3. (i) and (ii)
4. (ii) and (iv)
In an embryo sac, the cells that degenerate after fertilisation are
1. synergids and primary endosperm cell
2. synergids and antipodals
3. antipodals and primary endosperm cell
4. egg and antipodals
In a flower, if the megaspore mother cell forms megaspores without undergoing meiosis and if one of the megaspores develops into an embryo sac, its nuclei would be
1. haploid
2. diploid
3. a few haploid and a few diploid
4. with varying ploidy