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Reproduction in flowering plant MCQ Question

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Reproduction in flowering plant

Question 1

The end products of sexual reproduction is / are
A

Fruit

B

Seeds

C

Flower

D

A & B both

Explanation:

(A) Fruit (B)Seeds

Question 2

Floriculture deals with
A

Seed culture

B

Flower

C

Fruit

D

Both B & C

Explanation:

Flower

Question 3

Choose incorrect statement -
A

Several hormonal & structural changes are initiated which lead to redifferentiation and further development of the floral primordium.

B

Inflorescences are formed which bear the floral buds and then the flower

C

In the flower male and female reproductivestructures,the androecium and the gynoecium differentiate and develop

D

None of the above

Explanation:

None of the above

Question 4

Reproductive organ of flower does not comprises-(
A

Androecium

B

Gynoecium

C

Stamen

D

Tepals

Explanation:

Tepals

Question 5

A typical angiosperm anther is ___with each lobe having__theca i.e. they are___
A

Bilobed, two, dithecous

B

Dithecous, two, bilobed

C

Bilobed, four, dithecous

D

Dithecous, four, bilobed

Explanation:

Bilobed, two, dithecous

Question 6

Often theca is separated by
A

Transverse groove

B

Longitudinal groove

C

Diagonal groove

D

All of these

Explanation:

Longitudinal groove

Question 7

The dithecous consist of ____microsporangia located at the corners, ____in each lobe.
A

Two, one

B

Four, two

C

Two, two

D

Both A & C

Explanation:

Four, two

Question 8

Arrange microsporangial wall in sequence of outside to inside
A

Epidermis, middle layer, endothecium, tapetum

B

Epidermis, endothecium, middle layer, tapetum

C

Epidermis, middle layer, tapetum, endothecium

D

Endothecium, middle layer, tapetum, epidermis

Explanation:

Epidermis, endothecium, middle layer, tapetum

Question 9

How many of microsporangial wall perform function of protection and help in dehiscence of anther to release pollen
A

1

B

2

C

3

D

4

Explanation:

3

Question 10

____is responsible for nourishment of pollen grain.
A

Tapetum

B

Endothecium

C

Epidermis

D

Middle layer

Explanation:

Tapetum

Question 11

11. Which of the following undergo meiotic division to form microspore tetrad
A

Sporogenous tissue

B

Generative tissue

C

Microspore

D

A & B

Explanation:

Sporogenous tissue

Question 12

Microsporogenesis -
A

Process of formation of microspore

B

Development of pollen grain from pollen mother cell

C

It involve meiosis

D

All of these

Explanation:

All of these

Question 13

Pollen grain represents -
A

Male gametophyte

B

Male sporophyte

C

Female gametophyte

D

Female sporophyte

Explanation:

Male gametophyte

Question 14

14. Choose correct about pollen grain wall- (i) It has two layered prominent wall (ii) Hard outer layered prominent wall (iii) Exine is composed of sporopollenin (iv) Sporopollenin form continuous exine
A

i, ii, iii, iv

B

i, ii, iii

C

i, iii

D

i & iv

Explanation:

(i) It has two layered prominent wall (iii) Exine is composed of sporopollenin

Question 15

Sporopollenin is absent in -
A

Intine

B

Germpore

C

Exine

D

A & B both

Explanation:

A & B both

Question 16

Pollen grains are well preserved as fossil because of
A

Presence of intine

B

Presence of germpore

C

Presence of sporopollenin

D

All of these

Explanation:

Presence of sporopollenin

Question 17

Sporopollenin is degraded by -
A

Enzyme

B

High temperature

C

Strong acid & alkali

D

None of these

Explanation:

None of these

Question 18

Inner wall of pollen grain is -
A

Intine, made up of cellulose & lignin

B

Thin discontinuous intine

C

Both A & B

D

None of these

Explanation:

Intine, made up of cellulose & lignin

Question 19

When pollen grain mature -
A

It consist of two cell that are two male gamete only.

B

It consist of two cell that are generative & vegetative cell

C

It consist of two cell that are two male gamete arise from vegetative cell and one generative cell

D

It consist of three cell that are two male gamete develop meiotically from generative cell and one vegetative cell

Explanation:

It consist of two cell that are generative & vegetative cell

Question 20

Choose incorrect statement among following:
A

In over 60% of angiosperm, pollen grains are shed at 3 - cell stage

B

In over 60% of angiosperm, pollen grains are shed at 2 - cell stage

C

Both A & B

D

None of these

Explanation:

In over 60% of angiosperm, pollen grains are shed at 2 - cell stage

Question 21

Pollen allergy is not correlated with-
A

Cause of parthenium

B

Cause chronic respiratory disorder

C

Carrot grass that come into india as a contaminant with imported rice

D

None of these

Explanation:

Carrot grass that come into india as a contaminant with imported rice

Question 22

22. Pollen grain of rice is viable upto-
A

30 min

B

Several month

C

Same as in sonaceae

D

Both B & C

Explanation:

30 min

Question 23

Which temperature is correct to store semen for artificial insemination-
A

196°C

B

-196°C

C

34°C

D

4°C

Explanation:

-196°C

Question 24

24. Which of following serves as a landing platform for pollen grain?
A

Stigma

B

Style

C

Anther

D

Filament

Explanation:

Stigma

Question 25

Choose correct statement:
A

Inside the ovary is the ovarian cavity, also known as lodicule

B

Megasporangia is commonly called ovules

C

The placenta is located outside ovarian cavity

D

A & C both

Explanation:

Megasporangia is commonly called ovules

Question 26

Choose incorrect statement -
A

The number of ovules in an ovary is one in paddy

B

The number of ovules in an ovary is many in papaya

C

The number of ovules in an ovary is one in orchid

D

Wheat mango consist of one ovule

Explanation:

The number of ovules in an ovary is one in orchid

Question 27

Ovule is attached to placenta by -
A

Funicle

B

Integument

C

Hilum

D

Nucellus

Explanation:

Funicle

Question 1

Hilum represents the junction between
A

Ovule & ovary

B

Ovule & funicle

C

Ovule & integument

D

None of these

Explanation:

Ovule & funicle

Question 29

Chalaza end represent -
A

Basal part of ovule

B

Apical part of ovule

C

Basal part of ovary

D

Apical part of ovary

Explanation:

Basal part of ovule

Question 30

Female gametophyte of angiosperm represented by
A

Nucellus

B

Integument

C

Embryosac

D

Both A & B

Explanation:

Embryosac

Question 31

An ovile generally has embryo sac formed from a megaspore through division
A

Single, equational

B

Single, reductional

C

Four, meiotic

D

Four, mitotic

Explanation:

Single, reductional

Question 32

32. Megasporogenesis is not related to -
A

Formation of megaspore from megaspore mother cell

B

MMC undergoes meiotic division for megaspore

C

Formation of microspore

D

Both A & C

Explanation:

Formation of microspore

Question 33

Ovules generally differentiate a single megaspore mother cell in -
A

Chalazal end

B

Micropylar region

C

Both A & B

D

Integument

Explanation:

Micropylar region

Question 34

In a majority of flowering plants
A

One of the megapore is functional while other three degenerate

B

All four megapore can developes into female gametophyte in almost all angiosperm

C

Three megaspore is functional while other one degenerated

D

Both A & B

Explanation:

One of the megapore is functional while other three degenerate

Question 35

Monosporic embryo development involve -
A

One functional megaspore

B

One haploid cell formed in egg apparatus

C

Four functional megaspore

D

None of these

Explanation:

Question 36

Choose correct statement -
A

The nucleus of the functional megapore divides mitotically to form two nuclei which move to the opposite poles, forming the 2-nucleate embryo sac

B

Two more sequential mitotic nuclear division in 2-nucleate embryo sac result in formation of 4- nucleate

C

Mitotic division in embryo sac formation upto 8-celled is strictly free nuclear

D

All of these

Explanation:

Question 37

37. How many of eight nuclei of typical embryosac is surrounded by cell wall
A

2

B

4

C

6

D

7

Explanation:

6

Question 38

Central cell of typical embryosac is situated -
A

Below egg apparatus

B

Above egg apparatus

C

At chalazal end

D

None of these

Explanation:

Below egg apparatus

Question 39

39. Choose the correct about egg apparatus of typical embryosac
A

Situated at micropylar end

B

Consist of three cells

C

Both A & B

D

Consist of all cells having special cellular

Explanation:

Both A & B

Question 40

Typical embryo-sac of angiosperm at maturity is -
A

8 celled, 8 nucleate

B

7 celled, 8 nucleate

C

8 celled, 7 nucleate

D

7 celled, 7 nucleate

Explanation:

7 celled, 8 nucleate

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