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Reproduction

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In hydra, asexual reproduction takes place by ______.

  1. spore formation

  2. fragmentation

  3. budding

  4. binary fission


Correct Option: C

Development of a plant from any vegetative part is called as ______.

  1. cell division

  2. pollination

  3. vegetative reproduction

  4. fertilization


Correct Option: C

Micropropagation is ____.

  1. germination of seed with cotyledons above the soil

  2. the mature stage of endosperm

  3. a technique to obtain new plants by growing tissue in culture medium

  4. an early stage of endosperm


Correct Option: C

When the pollen grains are received by the stigma of the same flower, it is termed as ____.

  1. cross pollination

  2. autogamy

  3. fertilization

  4. grafting


Correct Option: B

Ova is produced in _____.

  1. fallopian tubes

  2. uterus

  3. ovary

  4. oviduct


Correct Option: C

Pollen tube, at the time of entering in two ovules, has ______.

  1. one male gamete

  2. two male gametes

  3. three male gametes

  4. four male gametes


Correct Option: B

Rupturing of ovarian follicle and discharge of ovum is called _____.

  1. conjugation

  2. fertilization

  3. ovulation

  4. copulation


Correct Option: C

Ovulation takes place after _____.

  1. 6 to 10 days of menstruation

  2. 10 to 12 days of menstruation

  3. 20 to 22 days of menstruation

  4. 22 to 24 days of menstruation


Correct Option: C

Maturation and viability of sperm requires _____.

  1. low temperature

  2. very high temperature

  3. same temperature as inside the abdomen

  4. lower temperature than inside the abdomen


Correct Option: D

Gestation period in woman is of ____.

  1. 380 days

  2. 280 days

  3. 250 days

  4. 200 days


Correct Option: B

In human beings, reproductive organs of females mature at the age of _____ years.

  1. 10 to 12

  2. 12 to 13

  3. 15 to 18

  4. 18 to 23


Correct Option: B

Secondary sexual character in woman is ______.

  1. ovary

  2. breast development

  3. deep voice

  4. growth of hair on face


Correct Option: B

Fertilization of ovum in mammals takes place in _____.

  1. vestibules

  2. vagina

  3. uterus

  4. fallopian tube


Correct Option: D

Testes are masses of coiled ______.

  1. uriniferous tubules

  2. malpighian tubules

  3. vasa efferentia

  4. seminiferous tubules


Correct Option: D

A gland associated with the male reproductive organs of mammals is ______.

  1. prostate gland

  2. testes

  3. phallic gland

  4. epididymis


Correct Option: A

A small portion of vas deferens is removed in _____.

  1. vasectomy

  2. tubectomy

  3. IUCD

  4. barrier method


Correct Option: A

Progestrone is secreted by _____.

  1. leydig cell

  2. graafian follicle

  3. corpus luteum

  4. placenta


Correct Option: C
Explanation:

 Progestrone is secreted by corpus luteum.

The anther contains ______.

  1. sepals

  2. ovules

  3. carpel

  4. pollen grains


Correct Option: D

Descent of the testes from the abdominal cavity into the scrotum helps in preventing ____.

  1. drying up

  2. mechanical injury

  3. sterility due to high temperature

  4. excessive hormone secretion


Correct Option: C

In mucor, asexual reproduction takes place by ____.

  1. fragnation

  2. budding

  3. binary fission

  4. spore formation


Correct Option: D

In sweet potato, vegetative propagation takes place at _____.

  1. root

  2. stem

  3. leaves

  4. flowers


Correct Option: A

The disease transmitted through sexual contact is _____.

  1. cancer

  2. tuberculosis

  3. diabetes

  4. AIDS


Correct Option: D

Connection between fetus and the mother is called ____.

  1. fertilization

  2. implantation

  3. placenta

  4. ovulation


Correct Option: C

The cessation of menstrual cycle is called

  1. menopause

  2. menarche

  3. amnion

  4. implantation


Correct Option: A
Explanation:

The cessation of menstrual cycle is called menopause.

A sperm achieves motility and maturity in

  1. cowper's gland

  2. seminal vesicle

  3. prostate gland

  4. epididymis


Correct Option: B
Explanation:

Sperms achieve motility and maturity in seminal vesicle.

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