Biology Reproduction MCQs Chapter 4 Class 12

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Created on March 02, 2022

Biology Ch 4 Class 12 Reproduction

1 / 61

In which organism males are haploid

Aphids

Honey bee

Mosquito

Butterfly

2 / 61

Luteinizing hormone, which is produced by the pituitary gland, promotes ovulation and stimulate the ovaries to produce:

NUMS 2019 Cancelled
Biology
Reproduction
Elimination Tool:

A) Estrogen

B) Estrogen and progesterone

C) Progesterone

D) Oxytocin

3 / 61

Female rabbits are:

NUMS 2014
Biology
Reproduction
Elimination Tool:

A) induced ovulators

B) spontaneous ovulators

C) seasonal ovulators

D) indifferent ovulators

4 / 61

Follicle – stimulating hormone, which is produced by the pituitary gland, stimulates the ovaries to produce:

NUMS 2019 Cancelled
Biology
Reproduction
Elimination Tool:

A) Estrogen

B) Estrogen and progesterone

C) Progesterone

D) Oxytocin

5 / 61

All of the following are sexually transmitted diseases except:

NTS 2011
Biology
Reproduction
Elimination Tool:

A) Syphilis

B) Gonorrhea

C) Alzheimer's Disease

D) Genital Herpes

6 / 61

Seeds are dormant in conditions of

Water scarcity

Low temperature

Harsh winters

All of these

7 / 61

Which statement is incorrect?

In short day plants red light prevents flowering

Henbane is a short day plant

In long day plants for red light promotes flowering

Leaf unrolling occurs in grasses

8 / 61

Gametes in animals are produced by

Mitosis

RedMeiosis

BlueFission

Apomixis

9 / 61

Development of an egg into zygote without fertilization is called

Parthenogenesis

Apomixes

Parthenocarpy

None of these

10 / 61

In the male reproductive tract, sperm cells follow a specific path. Which of the following do sperm cells enter after traveling through the epididymis?

PMC Sample 2
Biology
Reproduction
Elimination Tool:

A) Urethra

B) Seminiferous tubules

C) Ejaculatory duct

D) Vas deferens

11 / 61

Amniocentesis is performed between the:

NTS 2011
Biology
Reproduction
Elimination Tool:

A) 16th and 18th week of gestation

B) 1st and 2nd week of gestation

C) 30th and 32nd week of gestation

D) 37th and 38th week of gestation

12 / 61

Which method is of asexual reproduction?

Sporulation

Fission

Apomixis

All of these

13 / 61

The human cells affected in HIV are which of the following?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

A) RBCs

B) WBCs

C) Platelets

D) stem cells

14 / 61

The egg-laying birds are called:

NUMS 2016
Biology
Reproduction
Elimination Tool:

A) Oviparous

B) Viviparous

C) Monotremes

D) All of these

15 / 61

Referring to sexual reproduction, humans are:

NTS 2018
Biology
Reproduction
Elimination Tool:

A) Hermaphrodites

B) Vivaparous

C) Oviparous

D) Self-fertilized

16 / 61

Which one is not a day neutral plant?

Cucumber

Maize

Cotton

Tobacco

17 / 61

In humans, ovaries after birth contain:

NUMS 2018
Biology
Reproduction
Elimination Tool:

A) Oogonia

B) Primary oocyte

C) Secondary oocyte

D) Ova

18 / 61

In asexual reproduction offspring are produced by which of the following?

PMC Sample 2
Biology
Reproduction
Elimination Tool:

A) meiosis

B) mitosis

C) both a and b

D) none of these

19 / 61

Which of the following hormones of the pituitary gland regulates the menstrual cycle?

PMC 2020
Biology
Reproduction
Elimination Tool:

A) Follicle Stimulating hormone and Estrogen

B) Luteinizing hormone and Estrogen

C) Follicle Stimulating hormone and Luteinizing hormone

D) Estrogen and Progesterone

20 / 61

Which of the following is correct in humans?

NUMS 2015
Biology
Reproduction
Elimination Tool:

A) Both sperm and egg contain yolk

B) All genetic information comes from sperm

C) Sperm contains little cytoplasm

D) Fertilization commonly occurs in the uterus

21 / 61

Which one of the following represents the changes that occur in the ovary and the uterus approximately every 28 days involving ovulation with the breakdown and loss of the lining of the uterus?

PMC 2020
Biology
Reproduction
Elimination Tool:

A) Ovulation

B) Menstrual cycle

C) Uterine cycle

D) Embryo formation

22 / 61

Example of ovoviviparous

Reptiles

Mammal s

Duckbill platypus

Frog

23 / 61

In sexual reproduction, plants have diplohaplontic life cycle with alternating

Diploid sporophyte and haploid gametophyte generations

Haploid sporophyte and diploid gametophyte generations

Diploid sporophyte and diploid gametophyte generations

Haploid sporophyte and haploid gametophyte generations

24 / 61

Colour of corpus luteum is:

NUMS 2018
Biology
Reproduction
Elimination Tool:

A) Red

B) Yellow

C) Grey

D) Black

25 / 61

In which organism males are haploid?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

A) Aphids

B) mosquito

C) butterfly

D) honey bee

26 / 61

Developing seeds are rich source of

Auxins

Gibberellins

Cytokinins

All of these

27 / 61

Male and female sea urchins release their sperm and eggs Into the water where fertilization takes place. How can their reproduction be described?

NTS 2013
Biology
Reproduction
Elimination Tool:

A) asexual reproduction which results in genetically dissimilar offspring

B) asexual reproductlon whlch results In genetically identical offspring

C) Sexual reproduction which results in genetically dissimilar offspring

D) Sexual reproduction which results in genetically identical offspring

28 / 61

In asexual reproduction offspring are produced by

Meiosis

Mitosis

Both a and b

None of these

29 / 61

Which characteristic is not of identical twins

. Produced by separation of two blastomeres

Have different genetic makeup

Produced asexually

Produced when embryo is at two cell stage

30 / 61

The sexually transmitted disease, that can affect both the male and the female genitals and may damage the eyes of babies born of infected mothers is:

PMC Sample 1
Biology
Reproduction
Elimination Tool:

A) AIDS

B) Hepatitis

C) Gonorrhoea

D) All of these

31 / 61

A major constituent of contraceptive pills is:

NUMS 2016
Biology
Reproduction
Elimination Tool:

A) Estrogen

B) Progesterone

C) Prolactin

D) Testosterone

32 / 61

Which statement is incorrect?

Climacteric is burst of respiratory activity in fruit ripening

It is associated with ethane production C

It helps in fruit set

It helps in fruit ripening

33 / 61

Hydra reproduces asexually by:

NUMS 2014
Biology
Reproduction
Elimination Tool:

A) Binary fission

B) Multiple fission

D) Regeneration

C) Budding

34 / 61

Egg-laying mammals are called:

NUMS 2016
Biology
Reproduction
Elimination Tool:

A) Prototheria

B) Protozoa

C) Chordata

D) Monotremes

E) Both A and D

35 / 61

Which organ(s) in the male reproductive system produce gametes?

NUMS 2018
Biology
Reproduction
Elimination Tool:

A) Vas deferens

B) Malpighian tubule system

C) Seminiferous tubules

D) Ejaculatory duct

36 / 61

In biennials and perennials, low temperature stimulus is not received by

Shoot apex of mature stem

Embryo of the seed

Leaves of the plants

None of the above

37 / 61

Only one ovary is functional at a time in:

NUMS 2015
Biology
Reproduction
Elimination Tool:

A) Human

B) Eagle

C) Chicken

D) Pigeon and human

38 / 61

Which of the following is found beneath the prostate gland?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

A) vas deferens

B) seminal vesicle

C) urethra

D) cowper's gland

39 / 61

What is the commercial method of producing millions of seedlings in limited time?

NUMS 2016
Biology
Reproduction
Elimination Tool:

A) Parthenogenesis

B) Parthenocarpy

C) Cutting

D) Grafting

40 / 61

Duration of menstrual cycle is how many days on average?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

A) 25

B) 26

C) 27

D) 28

41 / 61

Menstruation, the shedding of the lining of the uterus (endometrium), is accompanied by:

NUMS 2019 Cancelled
Biology
Reproduction
Elimination Tool:

A) Shivering

B) Fever

C) Bleeding

D) Vomiting

42 / 61

Fallopian tube in humans is important for:

NUMS 2018
Biology
Reproduction
Elimination Tool:

A) Ovulation

B) Primary oocyte

D) Ova

C) Secondary oocyte

43 / 61

A pollen tube serves to:

NTS 2015 SMBBMC
Biology
Reproduction
Elimination Tool:

A) Produce sperms

B) Store food for the developing embryo

C) Transfer sperms from the stigma to the ovary

D) Produce female gametophytes

44 / 61

The primary oocyte in mammals has which of the following structures around it:

NUMS 2014
Biology
Reproduction
Elimination Tool:

A) Zona Pellucida

B) Zona Vasculosa

C) Zona radiata

D) None of them

45 / 61

Treponema pallidum causes:

NUMS 2016
Biology
Reproduction
Elimination Tool:

A) Syphilis

B) Gonorrhoea

C) AIDS

D) Herpes

46 / 61

Testes are structures that produce:

NTS 2015 SMBBMC
Biology
Reproduction
Elimination Tool:

A) Spores

B) Sperms

C) Seeds

D) Ova

47 / 61

What is critical in photoperiodism?

Length of light period

Length of dark period

Both a and b

None of these

48 / 61

Which statement is correct?

In heteromorphic generations are vegetatively dissimilar

. In isomorphic generations are vegetatively dissimilar

In isomorphic generations are vegetatively similar

Both a and c

49 / 61

In cloning, nucleus is introduced into

Somatic cell

Egg cell

Sperm cell

None of thes

50 / 61

Ovulation is induced by ______ hormone secreted by the pituitary gland.

NUMS 2019 Reconduct
Biology
Reproduction
Elimination Tool:

A) Follicle stimulating

B) Estrogen

C) Luteinizing hormone

D) Progesterone

51 / 61

Which disorder among the following CANNOT be detected by amniocentesis?..

NTS 2019
Biology
Reproduction
Elimination Tool:

A) Haemophilia

B) Heart defects

D) Cystic fibrosis

C) Tay-Sachs disease

52 / 61

Viviparous animals are those in which

. Internal fertilization with external development in eggs

Internal fertilization with internal development inside female body

Internal fertilization and internal development followed by hatching of egg

External fertilization with external development

53 / 61

Menstrual cycle can be divided into:

NUMS 2015
Biology
Reproduction
Elimination Tool:

A) Single phase

B) Two phases

C) Three phases

D) Four phases

54 / 61

Which of these cycles operate in human females?

PMC Sample 2
Biology
Reproduction
Elimination Tool:

A) Oestrous cycle

B) Menstrual cycle

C) Both Options A and B are correct

D) None of these options is correct

55 / 61

In parthenocarpy which levels are high in ovaries

Gibberalins

Cytokinins

Auxins

All of these

56 / 61

In which of the following options is mitotic division involved?

NUMS 2015
Biology
Reproduction
Elimination Tool:

A) Oogonium to primary oocyte

B) Primary oocyte to secondary oocyte

C) Secondary oocyte to egg

D) None of the given options

57 / 61

In sexual reproduction, plants have diplohaplontic life cycle with alternating

Diploid sporophyte and haploid gametophyte generations

Haploid sporophyte and diploid gametophyte generations

Diploid sporophyte and diploid gametophyte generations

Haploid sporophyte and haploid gametophyte generations

58 / 61

During birth, central nervous system of infants can be damaged by

PMC Sample 3
Biology
Reproduction
Elimination Tool:

A) syphilis

B) genital herpes

C) gonorrhoa

D) HPV

59 / 61

Pituitary gland releases ______ hormone and _______ hormone while ovaries produce _______ and progesterone.

NTS 2019
Biology
Reproduction
Elimination Tool:

A) Follicle-stimulating and luteinizing, estrogen

B) Estrogen and follicle-stimulating, luteinizing

C) Luteinizing arid estrogen, follicle-stimulating

D) Follicle-stimulating and estrogen, luteinizing

60 / 61

In human females, oocytes are held in the second metaphase until ________.

NUMS 2019 Reconduct
Biology
Reproduction
Elimination Tool:

A) Death

B) Birth

C) Ovulation

D) Fertilization

61 / 61

Which of the following is an ovoviviparous animal?

PMC Sample 1
Biology
Reproduction
Elimination Tool:

A) basking shark

B) humans

C) blue shark

D) all of these

Your score is

The average score is 56%

5 responses to “Biology Reproduction MCQs Chapter 4 Class 12”

Anonymous says:

October 7, 2022 at 7:29 pm

Answer to 8th mcq is wrong
- Anonymous says:
  
  March 17, 2023 at 9:05 am
  
  its c
Mehwish says:

February 15, 2023 at 1:58 am

Don’t you think that menstrual cycle contains 4 phases ??? Answer to 3rd mcq must be (d) ……..
- Anonymous says:
  
  March 6, 2023 at 1:36 pm
  
  no Accord to Fed Bio it has 3 phases
  - rimsha says:
    
    March 12, 2023 at 2:03 pm
    
    the answer to phase of menustral cycle is4