Match the following columns and select the correct option:- Column-I Column-II (a) Ovary (i) Human chorionic gonadotropin (b) Placenta (ii) Estrogen & Progesterone (c) Corpus luteum (iii) Androgens (d) Leydig cells (iv) Progesterone only

( a ) - ( ii ) , ( b ) - ( i ) , ( c ) - ( iv ) , ( d ) - ( iii )

( a ) - ( iv ) , ( b ) - ( iii ) , ( c ) - ( ii ) , ( d ) - ( i )

( a ) - ( i ) , ( b ) - ( ii ) , ( c ) - ( iii ) , ( d ) - ( iv )

( a ) - ( i ) , ( b ) - ( iii ) , ( c ) - ( ii ) , ( d ) - ( iv )

Match the following: List I List II A Totipotent cell I Haemopoietic stem cells B Pluripotent cell II Muscle stem cell C Multipotent cell III 8 cell stage blastocyst D Unipotent cell IV Inner cell mass V Mast cell

A = III , B = IV , C = I , D = II

A = III , B = V , C = IV , D = II

A = II , B = III , C = IV , D = I

A = V , B = III , C = II , D = IV

EASY

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Blastopore is found in

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Important Questions on Human Reproduction

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Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

Assertion (A): During the formation of placenta, some layers of uterus are eroded and during parturition, extensive haemorrhage occurs
Reason (R): Placenta of man is described as haemo endothelial placenta

MEDIUM

Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

Morphogenetic movements take place predominantly during the following embryonic stage:

HARD

Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

From an early amphibian embryo the cells that would give rise to skin in adults were transplanted into the developing brain region of another embryo. The transplanted cells developed into brain tissue in the recipient embryo. What do you infer from this experiment?

MEDIUM

Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

Which ONE of the following statements is CORRECT about placenta?

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Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?

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Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

Placenta of human being is

(I)	Yolk sac placenta
(II)	Chorioallantoic placenta
(III)	Zonary placenta
(IV)	Discoidal placenta
(V)	Haemochorial placenta
(VI)	Indeciduate placenta
(VII)	Deciduate placenta

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Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

Explain "Gastrulation".

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Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

The substance that helps in relaxing the muscles and ligaments of pelvic organs during parturition:

MEDIUM

Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

Match the following columns and select the correct option:-

Column-I		Column-II
(a)	Ovary	(i)	Human chorionic gonadotropin
(b)	Placenta	(ii)	Estrogen & Progesterone
(c)	Corpus luteum	(iii)	Androgens
(d)	Leydig cells	(iv)	Progesterone only

EASY

Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

The embryo with 8 to 16 blastomeres is called a:

HARD

Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

List the three hormones produced in women only during pregnancy. What happens to the levels of oestrogen and progesterone during pregnancy?

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Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

Several hormones like hCG, hPL, estrogen, progesterone are produced by

MEDIUM

Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

Describe the formation of the placenta during the pregnancy.

HARD

Biology>Reproduction>Human Reproduction>Pregnancy and Embryonic Development

Match the following:

	List I		List II
A	Totipotent cell	I	Haemopoietic stem cells
B	Pluripotent cell	II	Muscle stem cell
C	Multipotent cell	III	8 cell stage blastocyst
D	Unipotent cell	IV	Inner cell mass
		V	Mast cell