Development of Male Gametophyte

Q. Which of the following is not true about generative cell?

1. It is smaller in size than vegetative cell.
2. It is spindle-shaped.
3. It has the vegetative cell suspended in its cytoplasm.
4. It has dense cytoplasm and a nucleus.

Q. Which among the following occurs during dehiscence of anther?

1. Release of pollen grains
2. Pollen loses water
3. Strip between pollen sacs disintegrates
4. All of these

Q. If a hypothetical microspore mother cell is tetraploid. What will be the ploidy of the microspore?

1. Tetraploid
2. Diploid
3. None of the above
4. Haploid

Q. Pollen grains are shed at _________.

1. 1-celled stage
2. 2-celled stage
3. 3-celled stage
4. 2-celled or 3-celled stage

Q. If a hypothetical microspore mother cell is tetraploid. What will be the ploidy of the microspore?

1. Diploid
2. Haploid
3. Tetraploid
4. None of the above

Q. Male gametophyte in angiosperms produces:

1. Three sperms
2. Two sperms and a vegetative cell
3. Single sperm and a vegetative cell
4. Single sperm and two vegetative cells

Q. The mitotic division that takes place in the generative cell of pollen grain results in the formation of ________.

1. 3 male gametes
2. 2 male gametes
3. 2 male gametes and one vegetative cell
4. one male gamete and one vegetative cell.

Q. Which of the following is not true about generative cell?

1. It is smaller in size than vegetative cell.
2. It is spindle-shaped.
3. It has the vegetative cell suspended in its cytoplasm.
4. It has dense cytoplasm and a nucleus.

Q.

The cells present in a mature pollen grain after the first mitotic division are -

1. Vegetative cell

2. Generative cell

3. Sperm

4. Antipodal cells