NCERT - Reproduction in Organisms Questions and Answers of Class 12 Biology | Biology - Reproduction in Organisms MCQs | NCERT Solution of Class 12 Biology Reproduction in Organisms | NCERT Multiple Choice Questions and Answers of Biology from Chapter Reproduction in Organisms

Questions

1 Asexual reproduction is..

1 a fusion of specialized cells

2 a method by which all types of organisms reproduce

3 a method producing genetically identical off-springs

4 a method involving more than one parent

View Answer

Answer: a method producing genetically identical off-springs

2 Which of the following organisms does not reproduce by binary fission?

1 Amoeba

2 Euglena

3 Plasmodium

4 Paramoecium

View Answer

Answer: Plasmodium

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3 Reproduction is essential for living organisms in order to...

1 keep the individual organism alive

2 fulfill their energy requirement

3 maintain growth

4 continue the species forever

View Answer

Answer: continue the species forever

4 A multicellular organism which reproduces by budding is...

1 Amoeba

2 Yeast

3 Paramoecium

4 Hydra

View Answer

Answer: Hydra

5 Regeneration is observed in...

1 amoeba

2 spirogyra

3 yeast

4 planaria

View Answer

Answer: planaria

6 The disease caused by Treponema Palidium is...

1 AIDS

2 Gonorrhoea

3 Syphillis

4 Hepatitis

View Answer

Answer: Syphillis

7 ______ fertilizes an ovum in a female's body.

1 Testosterone

2 Blood

3 Sperm

4 Seminal fluid

View Answer

Answer: Sperm

8 The flower having both male and female reproductive organs is called...

1 sexual

2 asexual

3 bisexual

4 monosexual

View Answer

Answer: bisexual

9 The main reproductive organ in human female is...

1 oviduct

2 ovary

3 uterus

4 ovum

View Answer

Answer: ovary

10 When one cell divides to produce many cells, then the division is known as...

1 fission

2 binary fission

3 fragmentation

4 multiple fission

View Answer

Answer: multiple fission

11 The immune system becomes weak in a person suffering from...

1 Syphillis

2 Gonorrhoea

3 Typhoid

4 AIDS

View Answer

Answer: AIDS

12 The protective layer formed by some unicellular organisms during adverse condition is called...

1 bud

2 cyst

3 scion

4 graft

View Answer

Answer: cyst

13 The stage at which there is a gradual change in structure of reproductive organs of human male and female is called...

1 menarche

2 puberty

3 spermatogenesis

4 oogenesis

View Answer

Answer: puberty

14 Which structure changes first during binary fission?

1 Nuclear membrane

2 Cell membrane

3 Nucleus

4 Cytoplasm

View Answer

Answer: Nucleus

15 Girls normally attain puberty at the age of _____ years.

1 10

2 12

3 14

4 16

View Answer

Answer: 12

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