Human Reproduction Mock Test-8

CBSE Biology Human Reproduction <



Question No:1

Which of the facts is true about menstruation?

(A) It occurs only when the released ovum is not fertilized.
(B) It occurs due to breakdown of endometrial lining.
(C) Menstrual flow lasts for 3—5 days.
(D) All



Question No:2

Menopausal age in human being is

(A) 45 yr
(B) 55 yr
(C) 50 yr
(D) 60 yr



Question No:3

The time required to convert primary follicle into mature follicle:

(A) 4 days
(B) 9 to 11 days
(C) 18-20 days
(D) 2 days



Question No:4

Fertilization takes place at

(A) Isthumus
(B) Ampulla
(C) Infundibulum
(D) Ampullary-isthmic junction



Question No:5

Which part of the sperm helps in penetration into the ovum?

(A) Mitochondria
(B) Acrosome
(C) Tail
(D) All



Question No:6

Second Meiotic division in secondary oocyte is

(A) Unequal
(B) Complete after sperm penetration
(C) Both
(D) Equal



Question No:7

The embryo with 8 to 16 blastomeres is called

(A) Blastula
(B) Gastrula
(C) Morula
(D) None



Question No:8

Implantation leads to

(A) Formation of trophoblast in blastocyst
(B) Formation of inner cell mass in blastocyst
(C) Pregnancy
(D) All



Question No:9

Which of these hormones is/are produced hi women during pregnancy?

(A) HCG
(B) HPL
(C) Relaxin
(D) All



Question No:10

Which of these statements is incorrect about embryo development?

(A) After one month of pregnancy the heart is formed.
(B) By the end of first trimester most of the major organ systems are formed.
(C) First movement of foetus observed in the seventh month.
(D) At the end of second trimester, the body is covered with fine hair, eye-lids separate and eye lashes are formed.



Question No:11

The process of delivery of foetus is called

(A) Parturition
(B) Gestation
(C) Ejaculation
(D) Capacitation



Question No:12

Find the false statement.

(A) A pair of seminal vesicles is present in human males.
(B) A pair of prostates is present in human males.
(C) Glans penis is covered by a loose fold of skin called foreskin.
(D) Each fallopian tube is about 10-12 cm long in a human female.



Question No:13

Ploidy of spermatogonia, primary spermatocyte, secondary spermatocyte and spermatid is

(A) 2n, 2n, 2n, n
(B) n, 2n, 2n, n
(C) n, 2n, n, n
(D) 2n, 2n, n, n



Question No:14

Stem cells which have the potential to produce all types of cells, tissues and organs are present in

(A) Ectoderm
(B) Inner cell mass
(C) Throbhoblast
(D) Endoderm



Question No:15

Assertion: Testis are situated outside the abdominal cavity with in a pouch called scrotum.
Reason: Scrotum helps in maintain the low temperature of the testes necessary for spermatogenesis.

(A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(C) If the assertion is true but the reason is false
(D) If both the assertion and reason are false



Question No:16

Assertion: Male germ cells undergo mitotic division finally leading to sperm formation.
Reason: Sertoli cells provide nutrition to Leydig cells

(A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(C) If the assertion is true but the reason is false
(D) If both the assertion and reason are false



Question No:17

Assertion: Myometrium undergoes cyclical changes during menstrual cycle.
Reason: Myometrium’s lines th uterine cavity

(A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(C) If the assertion is true but the reason is false
(D) If both the assertion and reason are false



Question No:18

Assertion: Spermatogonia are haploid cells.
Reason: Spermatogonia multiply by binary fisision.

(A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(C) If the assertion is true but the reason is false
(D) If both the assertion and reason are false



Question No:19

Assertion: Androgens stimulate the process of spermatogenesis.
Reason: FSH acts on sertoli cells and stimulate secretion of some factors which help in the process of spermiogenesis.

(A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(C) If the assertion is true but the reason is false
(D) If both the assertion and reason are false



Question No:20

Assertion: Oogenesis is initiate during the embryonic development stage when a couple of million gamete mother cell (oogonia) are formed with in each foetal ovary.
Reason: No more oogonia are formed and added after birth.

(A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(C) If the assertion is true but the reason is false
(D) If both the assertion and reason are false



Question No:21

Assertion: Rupture of Graffian follicle occur before 14th day of onset of next menstrual cycle.
Reason: LH level is maximum during mid of cycle i.e. (14th day).

(A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(C) If the assertion is true but the reason is false
(D) If both the assertion and reason are false



Question No:22

Assertion: Only one sperm can fertilize ovum.
Reason: A sperm when come in contact with zona pellucida layer of the ovum, some changes occur in membrane that blocks the entry of other sperm.

(A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(C) If the assertion is true but the reason is false
(D) If both the assertion and reason are false



Question No:23

Assertion: In human menopause occur at approx 50 year of age.
Reason: Cyclic menstruation is an indicator of abnormal reproductive phase.

(A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(C) If the assertion is true but the reason is false
(D) If both the assertion and reason are false



Question No:24

Assertion: Mammary glands differentiate during pregnancy.
Reason: Mammary glands secretes milk after child birth.

(A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
(B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
(C) If the assertion is true but the reason is false
(D) If both the assertion and reason are false



Question No:25

Signals from fully developed foetus and placenta ultimately lead to a parturition which requires the release of

(A) Estrogen from placenta
(B) Oxytocin from maternal pituitary
(C) Oxytocin from foetal pituitary
(D) Relaxin from placenta