CBSE - Reproduction in Organisms MCQs | CBSE Solution of Class 12 Biology Reproduction in Organisms

Questions

61 The cut part of a plant stem (having roots and is fixed to the ground) used in the process of grafting is...

1 scion

2 cutting

3 bud

4 stock

View Answer

Answer: stock

62 ______ is the simplest method of asexual reproduction in unicellular organisms

1 Budding

2 Fragmentation

3 Spore formation

4 Binary fission

View Answer

Answer: Binary fission

Article and Schedule Quiz	Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

63 In human cells, there are ______ chromosomes.

1 23

2 32

3 46

4 64

View Answer

Answer: 46

64 The menstrual cycle in human female is repeated about every ______ days.

1 14

2 21

3 28

4 270

View Answer

Answer: 28

65 What is formed after fertilization?

1 A sperm

2 An ovum

3 A zygote

4 A gamete

View Answer

Answer: A zygote

66 The temperature in the scrotum is about ______ than the body temperature.

1 2-3^o C higher

2 5-6^o C higher

3 2-3^o C lower

4 5-6^o C lower

View Answer

Answer: 2-3^o C lower

67 How many chromosomes are present in the gamate of human male?

1 46

2 23

3 1

4 22

View Answer

Answer: 23

68 Which of the following plants shows vegetative propagation?

1 Bryophyllum

2 Sunflower

3 Jute

4 Wheat

View Answer

Answer: Bryophyllum

69 In asexual reproduction, two off-springs having the same genetic material and same body features are called...

1 callus

2 twins

3 clones

4 chromosomes

View Answer

Answer: clones

70 In this method Parents cell divides into many daughter cells.

1 Budding

2 Multiple fission

3 Binary fission

4 Fission

View Answer

Answer: Multiple fission

71 Propagules used to raise

1 growth

2 new plants

3 old plants

4 all the above.

View Answer

Answer: new plants

72 In algae -----is the medium for gamete Transfer.

1 air

2 anther

3 water

4 tentacles

View Answer

Answer: water

73 Development of zygote depends on?

1 Life cycle of the organism

2 Environment it is exposed to

3 Both 1 and 2

4 None of the above.

View Answer

Answer: Both 1 and 2

74 -------is for increase the number of cells.

1 Cell enlargement

2 Cell division

3 Cell differentiation

4 Zygote

View Answer

Answer: Cell division

75 If the gametes are similar in their appearance they are called as

1 anisogametes

2 isogametes

3 Homogametes

4 Both 3 and 2

View Answer

Answer: Both 3 and 2

ADRE 2.0 FULL LENGTH MOCK TEST

Take Mock Tests

Missiles Mock Test	Start Test!
SSC MTS Mock Test	Start Test
IBPS CLERK MOCK TEST	Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH)	Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi)	Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH)	Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH)	Start Test!
IB Security Assistant Mock test 1 (english)	Start Test!
UP POLICE CONSTABLE MOCK TEST 1	Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI)	Start Test!