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Sexual Reproduction in Flowering Plants · Question 53

NEET 2016 (Phase 2)MCQEasy📈 Topic in 50% papers+4−1
1

In majority of angiosperms

  1. egg has a filiform apparatus
  2. there are numerous antipodal cells
  3. reduction division occurs in the megaspore mother cells
  4. a small central cell is present in that embryo sac.

Answer

(3) reduction division occurs in the megaspore mother cells

Solution

As per NCERT, the megaspore mother cell (MMC) undergoes meiotic (reduction) division to form four megaspores; one functional megaspore develops into the female gametophyte (monosporic development, seen in a majority of flowering plants).

⇒ The filiform apparatus is present at the tips of the synergids, not the egg.

⇒ A typical 7-celled, 8-nucleate embryo sac has only three antipodal cells and one large central cell with two polar nuclei.

∴ In majority of angiosperms, reduction division occurs in the megaspore mother cells.

Answer: (3)

NEET 2016 (Phase 2)

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2

Pollination in water hyacinth and water lily is brought about by the agency of

  1. water
  2. insects or wind
  3. birds
  4. bats.
NEET 2016 (Phase 2)
3

The ovule of an angiosperm is technically equivalent to

  1. megasporangium
  2. megasporophyll
  3. megaspore mother cell
  4. megaspore.
NEET 2016 (Phase 2)
4

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)
NEET 2016 (Phase 2)
5

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

  1. scutellum
  2. coleoptile
  3. epiblast
  4. coleorhiza.
AIPMT 2015
6

Filiform apparatus is characteristic feature of

  1. aleurone cell
  2. synergids
  3. generative cell
  4. nucellar embryo.
AIPMT 2015
7

In angiosperms, microsporogenesis and mega-sporogenesis

  1. involve meiosis
  2. occur in ovule
  3. occur in anther
  4. form gametes without further divisions.
AIPMT 2015
8

Flowers are unisexual in

  1. China rose
  2. onion
  3. pea
  4. cucumber.
AIPMT 2015
9

Coconut water from a tender coconut is

  1. innermost layers of the seed coat
  2. degenerated nucellus
  3. immature embryo
  4. free nuclear endosperm.
AIPMT 2015
10

Which one of the following fruits is parthenocarpic?

  1. Jackfruit
  2. Banana
  3. Brinjal
  4. Apple
AIPMT 2015
11

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.
AIPMT 2015

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