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Reproduction in Plants and Animals

Description: Hot questions on reproduction
Number of Questions: 25
Created by:
Tags: Reproduction Sexual Reproduction in Flowering Plants Sexual Reproduction in Human Beings How do Organisms Reproduce (Sexual)
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Which of the following is/are intrauterine contraceptive device(s)?

  1. Condoms

  2. Copper-T

  3. Pills

  4. Condoms and pills

  5. All of the above


Correct Option: B
Explanation:

Copper-T is an intrauterine contraceptive device.

Which of the following diseases is/are sexually transmitted?

  1. Gonorrhoea

  2. Syphilis

  3. AIDS

  4. All of the above

  5. Herpes


Correct Option: D
Explanation:

Examples of STDs are gonorrhea, herpes, syphilis and AIDS. Examples of STDs are gonorrhea, herpes, syphilis and AIDS.

The anther contains

  1. pollen grains

  2. stamen

  3. stigma

  4. style

  5. ovule


Correct Option: A
Explanation:

Anther is that part of the stamen where pollen grain is produced.

Which of the following statements is/are incorrect about fungal reproduction?

  1. Sporangium is a reproductive structure.

  2. Sporangium contains numerous hyphae.

  3. Spores are covered by thick walls.

  4. Spores germinate in the presence of moisture.

  5. All of the above


Correct Option: B
Explanation:

Sporangium contains numerous spores. 

In bryophyllum, new plants arise from buds present on the margin of

  1. leaf

  2. stem

  3. root

  4. seed

  5. None of these


Correct Option: A
Explanation:

The leaf of bryophyllum has notches on the margin. 

Which of the following statements is false?

  1. Bacteria and protozoa reproduce through fission.

  2. The filament of spirogyra divides into many pieces.

  3. In amoeba, splitting of cells can take place in any plane.

  4. Fission in Leishmania can occur in any plane.

  5. Binary fission occurs in a definite orientation in some organisms.


Correct Option: D
Explanation:

In Leishmania, binary fission occurs in a definite orientation in relation to these structures.

Which of the following organisms can reproduce new organisms by regeneration?

  1. Yeast

  2. Mushroom

  3. Planaria

  4. Plasmodium

  5. Amoeba


Correct Option: C
Explanation:

Planaria is one of the many non-parasitic flatworms.

Match the following ||| |---|---| |P. Rhizopus|1. Egg| |Q. Anther|2. Pollen grain| |R. Ovule|3. Spore|

  1. P - 3, Q - 2, R - 1

  2. P - 2, Q - 1, R - 3

  3. P - 1, Q - 2, R - 3

  4. P - 1, Q - 3, R - 2

  5. P - 2, Q - 3, R - 1


Correct Option: A
Explanation:

Rhizopus - Spore Anther - Pollen grain Ovule - Egg

Match the following:

P. Spirogyra 1. Vegetative propagation
Q. Rose 2. Fragmentation
R. Planaria 3. Sexual reproduction
S. Human 4. Regeneration
  1. P - 1, Q - 3, R - 2, S - 4

  2. P - 3, Q - 4, R - 1, S - 2

  3. P - 2, Q - 1, R - 4, S - 3

  4. P - 4, Q - 2, R - 3, S - 1

  5. P - 2, Q - 4, R - 3, S - 1


Correct Option: C
Explanation:

New plant of rose is grown by using stem cutting.

Which of the following is correct for sexual reproduction?

  1. Fusion of two male gametes

  2. Fusion of two female gametes

  3. Fusion of one male and one female gamete

  4. Fusion of one male and two polar nuclei

  5. Fusion of two male and two female gametes


Correct Option: C
Explanation:

The fusion of one male gamete and one female gamete is called reproduction.

A flower was taken for study and the parts identified after observation were petals, sepals and stamens. What type of flower is it?

  1. Unisexual

  2. Bisexual

  3. Single sexual

  4. Trisexual

  5. None of these


Correct Option: A
Explanation:

A flower that contains only stamen or carpel is called a unisexual flower. 

Pollen tube grows from the _____ and reaches till __________.

  1. stigma; ovary

  2. style; stigma

  3. pollen grain; ovary

  4. ovary; pollen grain

  5. anther; pollen grain


Correct Option: C
Explanation:

The pollen tube does not reach the ovary in a straight line. 

Vegetative reproduction does not take place in

  1. sugarcane

  2. grapes

  3. rose

  4. potato

  5. guava


Correct Option: E
Explanation:

Guava plants are grown by seeds.

Which of the following plants has lost the capacity to produce seeds?

  1. Rice

  2. Rose

  3. Apple

  4. Cucumber

  5. All of the above


Correct Option: B
Explanation:

The plants of banana, rose and jasmine have lost the capacity to produce seeds due to continuous vegetative propagation.

Which of the following is not a male reproductive organ?

  1. Cervix

  2. Testes

  3. Vas deferens

  4. Seminal vesicle

  5. Scrotum


Correct Option: A
Explanation:

Cervix is a part of female reproductive system.

Arrange the following in the correct sequence for sexual reproduction in a plant.

P - Discharge of male gamete Q - Germination of pollen to form pollen tube R - Pollination S - Fertilisation

  1. R, Q, P, S

  2. P, Q, R ,S

  3. Q, P, S, R

  4. R, Q, S, P

  5. Q, R, S, P


Correct Option: A
Explanation:

The steps involved in sexual reproduction in a plant are: pollination, germination of pollen to form pollen tube, discharge of male gamete and fertilisation.

Fertilisation in females occurs in

  1. ovary

  2. fallopian tube

  3. uterus

  4. cervix

  5. vagina


Correct Option: B
Explanation:

Fertilisation occurs in the fallopian tube.

Female germ cells are situated in the

  1. stigma

  2. style

  3. ovary

  4. anther

  5. pistil


Correct Option: C
Explanation:

Ovary is the enlarged basal portion of the pistil where ovules are produced.

Which is the common passage for urine and sperms?

  1. Vas deferens

  2. Testes

  3. Urinary bladder

  4. Urethra

  5. Scrotum


Correct Option: D
Explanation:

Urethra is a common passage for both sperms and urine.

Testes are located in the

  1. vas deferens

  2. prostrate gland

  3. scrotum

  4. penis

  5. seminal vesicle


Correct Option: C
Explanation:

Testis is a pair of testes which lies in a skin pouch is called scrotum.

Secretions of prostrate gland and seminal vesicles help in the

  1. formation of sperm

  2. transport of sperm

  3. provision of nutrition to sperm

  4. Both 1 and 3

  5. 1, 2 and 3


Correct Option: D
Explanation:

The seminal vesicle and prostate glands add their secretions, so that the sperms are in a fluid which makes their transport easier and this fluid also provides nutrition.

Which of the following provides nutrition to the developing foetus?

  1. Placenta

  2. Embryo

  3. Cervix

  4. Testosterone

  5. Ovarian follicle


Correct Option: A
Explanation:

The embryo gets nutrition from the mother’s blood with the help of a special tissue called placenta.

Choose the correct path for fertilisation process.

  1. Cervix → Vagina → Fallopian tube → Uterus

  2. Cervix → Fallopian tube → Vagina → Uterus

  3. Vagina → Cervix → Uterus → Fallopian tube

  4. Vagina → Cervix → Fallopian tube → Uterus

  5. Vagina → Fallopian tube → Uterus → Cervix


Correct Option: C
Explanation:

The sperms enter in vagina, cervix, uterus and fallopian tube.

During germination, a seedling develops from a/an

  1. seed

  2. embryo

  3. seed coat

  4. ovule

  5. flower


Correct Option: B
Explanation:

The embryo is the future plant and when it is provided with suitable conditions, it develops into a seedling.

Which of the following is present in the centre of a flower?

  1. Carpel

  2. Stamen

  3. Sepal

  4. Petal

  5. Receptacle


Correct Option: A
Explanation:

Carpel is present in the centre of a flower.

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