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1. What is true for cleavage?

Size of embryo increases

Size of embryo decreases

Size of cells decreases

Size of cells increases

Question 1 of 24

2. Test-tube baby means a baby born when?

the ovum is fertilized externally and there after implanted in the uterus

it is developed through tissue culture method

it is developed in a tests tube

it develops from a non-fertilized

Question 2 of 24

3. Stratum germinativum is an example of which kind of epithelium?

Columnar

Squamous

Cuboidal

Ciliated

Question 3 of 24

4. The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is?

spermatid-spermatocyte-spermatogonia-sperms

spermatocyte-spermatogonia-spermatid-sperms

spermatogonia-spermatocyte-spermatid-sperms

spermatogonia-spermatid-spermatocyte-sperms

Question 4 of 24

5. The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for?

reproduction

responsiveness to touch

interaction with the environment and progressive evolution

growth and movement

Question 5 of 24

6. Seminal plasma in human is rich in?

fructose and calcium but has no enzymes

fructose and certain enzymes but poor in calcium

fructose, calcium and certain enzymes

glucose and certain enzymes but has no calcium

Question 6 of 24

7. Which one of the following statement is incorrect about menstruation?

The menstrual fluid can easily clot

The beginning of the cycle of menstruation is called menarche

At menopause in the female there is especially abrupt increase in gonadotropic hormones

During normal menstruation about 40 mL blood is lost

Question 7 of 24

8. During embryonic development the establishment of polarity along anterior/ posterior, dorsal/ ventral or medial/ lateral axis is called?

anamorphosis

pattern formation

organizer phenomena

axis formation

Question 8 of 24

9. At the time of organogenesis genes regulate the process at different levels and at different time due to?

exon

regulator

intron

promoter

Question 9 of 24

10. Ovulation in the human female normally takes place during the menstrual cycle?

at the beginning of the proliferative phase

at the end of the proliferative phase

just before the end of the secretory phase

at the mid secretory phase

Question 10 of 24

11. Cleavage in mammalian egg is?

superficial meroblastic

discoidal meroblastic

unequal holoblastic

equal holoblastic

Question 11 of 24

12. Which one of the following is the most likely reason of not occurring regular menstruation cycle in females?

Retention of well-developed corpus luteum

Fertilization of the ovum

Maintenance of the hypertrophy detrimental lining

Maintenance of high concentration of sex-hormones in the blood stream

Question 12 of 24

13. After ovulation Graafian follicle regresses into?

corpus callosum

corps albicans

corpus artesia

corpus luteum

Question 13 of 24

14. Bartholin's glands are situated?

on the sides of the head of some amphibians

on either side of vagina in humans

on either side of vas deference in humans

at the reduced tail end of birds

Question 14 of 24

15. Gray crescent is the area?

at the point of entry of sperm into ovum

at the animal pole

just opposite to the site of entry of sperm into ovum

at the vegetal pole

Question 15 of 24

16. The mammalian corpus luteum produces?

progesterone

luteinizing hormone

estrogen

luteotropic hormone

Question 16 of 24

17. Which part of ovary in mammals acts as an endocrine gland after ovulation?

Vitelline membrane

Graafian follicle

Stroma

Germinal epithelium

Question 17 of 24

18. If mammalian ovum fails to get fertilized which one of the following is unlikely?

Estrogen secretion further decreases

Primary follicle starts developing

Corpus luteum will disintegrate

Progesterone secretion rapidly declines

Question 18 of 24

19. The function of copper-T is to prevent?

implantation of blastocyst

fertilization

egg maturation

ovulation

Question 19 of 24

20. Which extra-embryonic membrane in humans prevents desiccation of the embryo inside the uterus?

Amnion

Chorion

Allantois

Yolk sac

Question 20 of 24

21. Flamingoes breed in?

sambhar lake

Chilka lake

Rann of Kutch

lake mansarover

Question 21 of 24

22. Probability of four sons to a couple is?

1/4

1/8

1/32

1/16

Question 22 of 24

23. A change in the amount of yolk and its distribution in the egg will affect?

number of blastomeres produced

formation of zygote

pattern of cleavage

fertilization

Question 23 of 24

24. Which set is similar?

Corpus luteum __ Graafian follicle

Vit-B __ Niacin

Bundle of His __ Pacemaker

Sebum __ Sweat

Question 24 of 24

Test Name	Reproduction in Animals and Embryonic Development Test
Subject	CBSE Biology
Test Type	MCQs
Total Question	24
Total Marks	48
Total Time	20 Minutes
Test Help For	CBSE Biology. CBSE Board Exams. Entrance Exams. Admissions Test. Jobs Test. General Knowledge. All Grades Exams.

Test By Subject	CBSE
Test By Topics	Reproduction in Animals and Embryonic Development

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CBSE Biology Reproduction in Animals and Embryonic Development Test 1 Online

CBSE Biology Reproduction in Animals and Embryonic Development Test 1 Online

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