Human Reproduction

Question 1

After implantation, finger-like projections appear on the ___________________ called
chorionic villi which are surrounded by the _______

Answer 1

trophoblast

uterine tissue and maternal blood

Question 2

In the later

phase of pregnancy, a hormone called relaxin is also secreted by

Answer 2

the ovary

Question 3

during pregnancy the levels of other hormones
like ________________
etc., are increased several folds in the maternal blood.

Answer 3

estrogens, progestogens,

cortisol, prolactin, thyroxine,

Question 4

Pregnancy in dogs, also called the gestation period, is
For cats?
For elephants?

Answer 4

63 days
63 days
18-22 months

Question 5

After __________ of pregnancy, the embryo’s

heart is formed

Answer 5

one month

Question 6

By the end of the
___________ of pregnancy, the foetus develops limbs and digits.

By the end of ________-, most of the major organ systems are formed, for example, the limbs and external genital organs are well developed.

Answer 6

second month
12 weeks (first trimester)

Question 7

The first movements of the foetus and appearance of hair on the head are usually observed during the __________

By the end of about_________, the body is covered with fine hair, eye-lids separate, and eyelashes are formed

Answer 7

fifth month
24 weeks (end of second trimester)

Question 8

The signals for

parturition originate from the fully developed foetus and ________

Answer 8

the placenta

Question 9

The mitotic division starts as the zygote moves through the isthmus of the oviduct called ________ towards the uterus and forms
2, 4, 8, 16 daughter cells called _________.

Answer 9

cleavage

blastomeres

Question 10

LH and FSH peak on the ____ day

Answer 10

14th

Question 11

Androgens stimulate the process of

Answer 11

spermatogenesis

Question 12

FSH acts on the ____________ and stimulates
secretion of some factors which help in the
process of ___________________

Answer 12

Sertoli cells

spermiogenesis

Question 13

The human male ejaculates about 200 to 300
million sperms during a coitus of which, for
normal fertility, at least ______ percent sperms
must have normal shape and size and at least
______ per cent of them must show vigorous
motility.

Answer 13

60

40

Question 14

The functions of

male sex accessory ducts and glands are maintained by the

Answer 14

testicular hormones (androgens).

Question 15

Oogonia start division and enter into

Answer 15

prophase-I

Question 16

The secondary follicle soon transforms into a tertiary follicle which is characterised by a fluid filled cavity called __________.

Answer 16

antrum

Question 17

Each ovary is covered by a thin

epithelium which encloses the _____________. The stroma is divided into two zones –

Answer 17

ovarian stroma

a peripheral cortex and an inner medulla

Question 18

The epididymis located along the _____________

of each testis

Answer 18

posterior surface

Question 19

The Medical Termination of Pregnancy (Amendment) Act which year?
untils __ weeks one medical practioner
to ___-___ weeks, two medical practioners

Answer 19

2017
12
12-24

Question 20

Government of India legalised MTP in _____

Answer 20

1971

Question 21

Our population which was approximately _________ at the time of our independence reached close to the ___________ mark by 2000 and crossed
____________ in May 2011

Answer 21

350 mill
billion
1.2 billion

Question 22

According to the 2011 census report, the population growth rate was

Answer 22

less than 2 per cent

Question 23

Periodic abstinence is one such method in which

the couples avoid or abstain from coitus from

Answer 23

day 10 to 17

Question 24

Family planning

Answer 24

1951

Question 25

Amniocentesis analyzes?

Answer 25

fetal cells and dissolved substances