NEET NCERT Seuxual Reproduction,CBSE Class 11 Questions,Solutions

Sexual Reproduction in Flowering Plants Mock Test-4

Question No:1

How many embryo sacs are present in an ovule?

(A) One embryo sac
(B) More than one embryo sac
(C) One embryo sac (generally)
(D) Two embryo sacs



Question No:2

What is functional megaspore referred to as?

(A) The megaspore that degenerates after formation
(B) The megaspore that only develops in female gametophyte
(C) The megaspore that undergoes reduction division
(D) The megaspore that is functionally inocuve



Question No:3

Monosporic development referred to as

(A) Single megaspore developing in embryo sac
(B) Single megaspore mother cell undergoing meiosis
(C) Presence of single ovule in ovary
(D) None of them is correct



Question No:4

What is the ploidy level of nucleus, MMC, functional megaspore and female gametophyte?

(A) 2n, n, 2n, 2n
(B) 2n, n, 2n, n
(C) 2n, 2n, n, n
(D) n, 2n, n, n



Question No:5

How many mitotic division takes place for complete development of embryo sac?

(A) 4
(B) 3
(C) 2
(D) (a) 1



Question No:6

The inside three mitotic division which occur the megaspore are

(A) Followed by cytoplasmic division immediately
(B) Strictly free nuclear not immediately followed by cell wall formation
(C) Wall formation occurs after completion of the second mitosis
(D) Wall formation will never occur



Question No:7

Typical female gametophyte is

(A) 7-celled 8 nucleate
(B) 6-celled 8 nucleate
(C) 4-celled 6 nucleate
(D) 5-celled 6 nucleate



Question No:8

Egg apparatus consist of

(A) Two synergids
(B) Two antipodals
(C) Egg cell
(D) (a) and (c) both



Question No:9

The cellular thickening at the tip of micropyle is

(A) Synergids
(B) Egg apparatus
(C) Filiform apparatus
(D) All are correct



Question No:10

The cells located at chalazal ends are called as

(A) Synergids
(B) Antipodals
(C) Egg apparatus
(D) None of them



Question No:11

The central cell

(A) Contains two hapioid nuclei
(B) Has two polar nuclei
(C) Located in the centre of embryo sac
(D) All are correct



Question No:12

The cells in embryo sac located at the micropyles end are

(A) Egg apparatus
(B) Only synergid
(C) Antipodal cell
(D) Central cell



Question No:13

The male and female gametes of angiosperm are respectively

(A) Motile, non-motile
(B) Non-motile, motile
(C) Motile, motile
(D) Non-motile, non-motile



Question No:14

After three meiotic divisions in the functional megaspore, the gametophyte (embryosac) has how many cells.

(A) 7 cells
(B) 4 cells
(C) 5 cells
(D) 8 cells



Question No:15

Pollination is essential in angiosperm plants because

(A) It decreases the time required for fertilization
(B) Both of the male and female gametes are non-motile and they need to be brought together for fertilization
(C) It is a useless process
(D) Both (a) and (b)



Question No:16

Pollination in plants is referred to as

(A) Fusion of male and female gametes
(B) Transfer of pollen grain to stigma of pistil
(C) Germination of pollen of stigma
(D) Production of pollen grew inside the microsporangium



Question No:17

Autogamy refers to

(A) Transfer of pollen grain to stigma of another flower
(B) Transfer of pollen grain to stigma of same flower
(C) Both of the above
(D) None of the above



Question No:18

In a normal flower which opens and exposes the stigma and anther will have which type of pollination?

(A) Autogamy is absent
(B) Complete autogamy is rare
(C)
(D)



Question No:19

Plants which produce two types of flowers are

(A) Viola
(B) Oxalis
(C) Commelina
(D) All of them



Question No:20

Two types of flowers found hi autogamous plant

(A) Flower similar to flowers of other species with exposed anthers and stigma
(B) Flowers which do not open at all
(C) Both (a) and (b)
(D) Flowers with only stigma and no anther



Question No:21

_____ flowers produce assured seed set even in the absence of pollinators

(A) Cleistogamous flower
(B) Chasmogamous flowers
(C) Both of them
(D) Flowers showing geitonogamy



Question No:22

A type of cross pollination involving a pollinating agent is genetically similar to autogamy since pollen grain come from same plant

(A) Xenogamy
(B) Geitonogamy
(C) Autogamy
(D) All are correct



Question No:23

The only type of pollination during which pollination bring genetically different types of pollen grains to stigma

(A) Xenogamy
(B) b) Geitonogamy
(C) Autogamy
(D) All are correct



Question No:24

Majority of plants uses which types of pollinating agents

(A) Biotic
(B) Abiotic
(C) Both
(D) None



Question No:25

_____ proportion of plants uses abiotic agents for pollination,

(A) Major
(B) Most
(C) Small
(D) Can be small or major