Sexual Reproduction in Flowering Plants

The ovule of an angiosperm is technically equivalent to

1. megasporangium
2. megasporophyll
3. megaspore mother cell
4. megaspore.

Match Column-I with Column-II and select the correct option using the codes given below –

1. (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
2. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
3. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
4. (a)-(i), (b)-(iv), (c)-(ii), (d)-(iii)

The wheat grain has an embryo with one large, shield shaped cotyledon known as

1. scutellum
2. coleoptile
3. epiblast
4. coleorhiza.

Filiform apparatus is characteristic feature of

1. aleurone cell
2. synergids
3. generative cell
4. nucellar embryo.

In angiosperms, microsporogenesis and mega-sporogenesis

1. involve meiosis
2. occur in ovule
3. occur in anther
4. form gametes without further divisions.

Flowers are unisexual in

1. China rose
2. onion
3. pea
4. cucumber.

Coconut water from a tender coconut is

1. innermost layers of the seed coat
2. degenerated nucellus
3. immature embryo
4. free nuclear endosperm.

Which one of the following fruits is parthenocarpic?

1. Jackfruit
2. Banana
3. Brinjal
4. Apple

Male gametophyte in angiosperms produces

1. single sperm and two vegetative cells
2. three sperms
3. two sperms and a vegetative cell
4. single sperm and a vegetative cell.

Which of the following are the important floral rewards to the animal pollinators?

1. Floral fragrance and calcium crystals
2. Protein pellicle and stigmatic exudates
3. Colour and large size of flower
4. Nectar and pollen grains