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Modes of reproduction

Total questions: 51

Worksheet time: 26mins

Name
Class
Date
1.

The process of fusion of male and female gamete is called

a)

Pollination

b)

Anthesis

c)

Fertilization

d)

Reproduction

2.

Both sexual and asexual reproduction occurs in

a)

Sugarcane

b)

Potato

c)

Onion

d)

All of these

3.

The development of embryo/seed without fertilization is called

a)

Apomixis

b)

Gametogenesis

c)

Sporogenesis

d)

Fertilization

4.

The following is called clonal seed production

a)

Apomixis

b)

Vegetative reproduction

c)

Sexual reproduction

d)

None of these

5.

The term apomixis was coined by the scientist

a)

Winkler

b)

Morgan

c)

Sturtevant

d)

Johannsen

6.

The presence of multiple seedlings from a single seed is the indication of

a)

Sexual reproduction

b)

Apomixis

c)

Vegetative reproduction

d)

None of these

7.

Development of seed without fertilization from a eggcell is called

a)

Apospory

b)

Adventative embryony

c)

Apogamy

d)

Parthenogenesis

8.

Development of seed without fertilization from synergids and antipodal cells is called

a)

Apogamy

b)

Apospory

c)

Adventative embryony

d)

Parthenogenesis

9.

Development of embryo from the embryosac other than normal embryosac is called

a)

Apospory

b)

Apogamy

c)

Adventative embryony

d)

Parthenogenesis

10.

Development of embryo directly from the cells of either nucellus or integument is called

a)

Apogamy

b)

Aposory

c)

Parthenogenesis

d)

Adventative embryony

11.

Adventative embryony occurs in

a)

Mango

b)

Citrus

c)

Orchids

d)

All of these

12.

Embryos develop from cells of unreduced embryosac (Diploid) is called

a)

Recurrent apomixis

b)

Non recurrent Apomixis

c)

Somatic Apomixis

d)

Gametic Apomixis

13.

Embryos develop from cells of reduced embryosac (Haploid) is called

a)

Recurrent apomixis

b)

Non recurrent apomixis

c)

Somatic apomixis

d)

Gametic apomixis

14.

Apomixis is useful in plant breeding

a)

Fixation of heterosis

b)

Rapid generation and maintenance of purelines or superior lines

c)

The avoidance of viral transfer in vegetatively propagated plants

d)

All of the above

15.

Apospory type of apomixis is found in cultivated species of the crop

a)

Sorghum

b)

Rice

c)

Pearl millet

d)

Finger millet

16.

The F1 produced by two facultative apomictic genotypes is called

a)

Hybrid

b)

Vybrids

c)

Cybrids

d)

none of these

17.

Vybrids are developed in the crop

a)

Sorghum

b)

Rice

c)

Wheat

d)

Sunflower

18.

Heterosis can be fixed through

a)

Apomixis

b)

Sexual reproduction

c)

Fertilization

d)

Hybridisation

19.

Heterosis can be fixed through

a)

Apomixis

b)

Sexual reproduction

c)

Fertilization

d)

Hybridisation

20.

Apomixis in plant breeding is called

a)

Single line breeding system

b)

Two line breeding system

c)

Three line breeding system

d)

None of these

21.

Development of seed takes place in

a)

sexual reproduction

b)

Apomixis

c)

Vegetative reproduction

d)

Both a and b

22.

Variation is created by

a)

Sexual reproduction

b)

Apomixis

c)

Vegetative reproduction

d)

Both b and c

23.

True to type / identical progenies are obtained through

a)

Obligate apomixis

b)

Facultative apomixis

c)

Vegetative propagation

d)

Both a and c

24.

The self pollinated crop

a)

Rice

b)

Sorghum

c)

Sunflower

d)

Maize

25.

Often cross pollinated crop

a)

Sorghum

b)

Pigeonpea

c)

Safflower

d)

All of these

26.

The mechanism which ensures cross pollination are

a)

Male sterility

b)

Self incompatibility

c)

Dichogamy

d)

All of these

27.

The mechanism which ensures self pollination is

a)

Bisexual

b)

Homogamy

c)

Cleistogamy

d)

All of these

28.

Embryosac is

a)

Seven celled eight nucleate structure

b)

Eight celled eight nucleate structure

c)

Eight celled seven nucleate structure

d)

None of these

29.

Meiosis takes place in

a)

Somatic cells

b)

Reproductive cells

c)

Both

d)

None

30.

Four MMC undergoes meiosis and produces megaspores and egg cells

a)

Eight and sixteen

b)

Four and Four

c)

Eight and eight

d)

Sixteen and Sixteen

31.

Double fertilization occurs in

a)

Megagamatophyte

b)

Microgamatophyte

c)

Anther

d)

Stigma

32.

Three PMC undergoes meiosis produces pollengrains and male gametes

a)

6 and 24

b)

12 and 24

c)

3 and 6

d)

6 and 18

33.

Protogyny is found in

a)

Castor

b)

Bajra

c)

Sugarcane

d)

All of these

34.

The mechanism protandry is found in

a)

Sunflower

b)

Maize

c)

Niger

d)

All of these

35.

Monoecious crop

a)

Banana and Amla

b)

Cucumber and Water melon

c)

Castor and Maize

d)

All of these

36.

Diocious condition is found in

a)

Maize

b)

Coconut

c)

Papaya

d)

Castor

37.

Vegetative reproduction occurs through

a)

Rhizomes and Tubers

b)

Stolons and Bulbils

c)

Seed

d)

Both a and b

38.

Bamboo and agave are examples for

a)

Annuals

b)

Biennial

c)

Perennial

d)

Monocarps

39.

Ovary containing 10 ovules produces the seeds

a)

40

b)

10

c)

30

d)

20

40.

Incomplete and perfect flower present in

a)

Maize

b)

Sorghum

c)

Sunflower

d)

Castor

41.

Complete and perfect flower is found in

a)

Rice

b)

Tomato

c)

Maize

d)

Castor

42.

Monoecious and dichogamy is found in

a)

Maize and Castor

b)

Maize and Pearlmillet

c)

Castor and sunflower

d)

Banana and Papaya

43.

Genetic constitution of self pollinated crops is

a)

Homozygous

b)

Heterozygous

c)

Both

d)

Hemizygous

44.

Genetic constitution of cross pollinated crops is

a)

Homozygous

b)

Heterozygous

c)

Both

d)

Hemizygous

45.

Geitanogamy is found in

a)

Maize

b)

Rice

c)

Castor

d)

Sorghum

46.

Androgenesis is development of embryo from

a)

Egg cell

b)

Antipodal cells

c)

Pollen grains

d)

Polar nuclei

47.

The intense form of inbreeding is

a)

Self pollination

b)

Cross pollination

c)

Full-Sibbing

d)

Half-Sibbing

48.

The genetic constitution of asexually reproducing crops is

a)

Homozygous

b)

Heterozygous

c)

Hemizygous

d)

None

49.

Variation is created through

a)

Hybridisation

b)

Vegetative propagation

c)

Inbreeding

d)

Apomixis

50.

The mechanism used in developing hybrid varieties in crops is

a)

Male sterility

b)

Protogyny

c)

Pistillate

d)

All of these

51.

No inbreeding depression is observed in

a)

Self pollinated crops

b)

Apomictic crops

c)

Cross pollinated crops

d)

Both a and b

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