In human embryo, the digestive system develops from the

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In human embryo, the digestive system develops from the

A. Epithelium

B. Mesoderm

C. Endoderm

D. Ectoderm

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Acrosome occurs in the sperm in

A. Tail part

B. Behind the nucleus

C. Middle piece

D. Tip

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Part of fallopian tube closest to ovary is

A. Infundibulum

B. Cervix

C. Ampulla

D. Isthmus

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Chorionic gonadotropin is secreted by ...

A. Pituitary

B. Ovary

C. Placenta

D. Uterus

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What happens during fertilization when many sperms reach close to ovum ....

A. Cells of corona radiata trap all the sperm except one

B. Only two sperms nearest to ovum penetrate zona pellucida

C. Secretion of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida

D. All sperms except the one nearest to ovum lose their tails

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Name the pituitary hormone that regulates sertoli cells

A. Prolactin

B. LH

C. FSH

D. Oxytocin

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Corona radiata is held by...

A. Mucopolysaccharide

B. Oligosaccharide

C. Lipopolysaccharide

D. Lipoprotein

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Mongolian idiocy due to trisomy in 21st chromosome is known as

A. Downs syndrome

B. Turners syndrome

C. Klinefelters syndrome

D. Triple x syndrome

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Prostate gland produces a secretion for ...

A. Attracting sperms

B. Stimulating sperm activity

C. Inhibiting sperm activity

D. None of the above

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Fertilization of the ovum takes place in

A. Ovary

B. Uterus

C. Fallopian tube ampulla

D. Cervix

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Secretion of testosterone is stimulated by

A. FSH

B. TSH

C. ICSH

D. ACTH

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Amniotic fluid protects the foetus from ...

A. Shock

B. Abortion

C. Degeneration

D. Disease

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The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the:

A. Capacitor

B. Head

C. Corona

D. Acrosome

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The hormone responsible for enlargement of mammary glands at puberty is

A. Progesterone

B. Oestrogen

C. Testosterone

D. Oxytocin

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Highly sophisticated procedure of injecting sperm directly into the ovum is

A. GIFT

B. ZIFT

C. ICSI

D. IUI

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The most important region of the decidua for the nourishment of the conceptus is the deciduas

A. Frondosum

B. Capsularis

C. Parietalis

D. Basalis

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What are the chances of a normal fertile couple having a baby in one year?

A. 40%

B. 80%

C. 20%

D. 50%

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Fertilization is fusion of ..

A. Diploid spermatozoan with diploid ovum to form diploid zygote

B. Haploid spermatozoan with diploid ovum to form diploid zygote

C. Diploid spermatozoan with haploid ovum to form diploid zygote

D. Haploid spermatozoan with haploid ovum to form diploid zygote

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Correct sequence of hormone secretion from beginning of menstruation is ...

A. FSH, progesterone, estrogen

B. Estrogen, fsh, progesterone

C. FSH, estrogen, progesterone

D. Estrogen, progesterone, FSH

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Layers of ovum from outside to inside are .

A. Corona radiata, zona pellucida, vitelline membrane

B. Zona pellucida, corona radiata, vitelline membrane

C. Vitelline membrane, zona pellucida, corona radiata

D. Zona pellucida, vitelline membrane, corona radiate

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Human placenta is

A. Endothelial

B. Haemochorial

C. Epitheliochorial

D. Syndesmochorial

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What is Hirsuitism in females? (Usually with Poly cystic ovarian disease)

A. Unusually tall

B. Abnormal growth of facial and body hair

C. Abnormal voice

D. Short stature

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Embryonic connective tissue is formed from ..

A. ectoderm

B. endoderm

C. Mesenchyme

D. Mesogloea

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Temperature in scrotum necessary for sperm formation is usually ...

A. 2°c above body temperature

B. 2° c below body temperature

C. 4°c above body temperature

D. 4° c below body temperature

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Third phase of embryo development is ...

A. Cleavage

B. Fertilization

C. Gametogenesis

D. Gastrulation

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Normal sperm count is

A. 40 to 300 million per ml

B. 10 to 20 million per ml

C. < 10 million per ml

D. 200 million per ml

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Approximately how long does it take for a spermatocyte to complete its differentiation into a spermatozoan in the testis?

A. 7 days

B. 70 days

C. 7 months

D. 70 hours

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Hormones that control the growth and maturation of graffian follicle is

A. FSH - LH

B. FSH - ICSH

C. ACTH - LH

D. GH - ADH

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Which part of the ovary act as an endocrine gland in human beings

A. Stroma

B. Vitteline membrane

C. Graffian follicle

D. Epithelium

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Human embryo is referred to as fetus from beginning of

A. 1st month of pregnancy

B. 2nd month of pregnancy

C. 3rd month of pregnancy

D. 4th month of pregnancy

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Identical twins are also known as ..

A. monozygotic twins

B. Dizygotic twins

C. Fraternal twins

D. Zygotic twins

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Accepted Answer

C. Endoderm

In human embryo, the digestive system develops from the

Correct Answer :

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Related Questions

Acrosome occurs in the sperm in

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Chorionic gonadotropin is secreted by ...

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