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Human eggs are

A. Mesolecithel

B. Microlecithel

C. Macrolecithel

D. Alecithel

Correct Answer :

D. Alecithel


Related Questions

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The male hormone testosterone is secreted by

A. Sertoli cells

B. Leydig cells

C. Crypt cells

D. Semniferous tubules

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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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The middle piece of the sperm contains

A. Protein

B. Nucleus

C. Mitochondria

D. Centriole

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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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In a 28 day menstrual cycle, ovulation occurs on ...

A. Day 1

B. Day 5

C. Day 14

D. Day 28

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Which one takes part in formation of placenta? ...

A. Only trophoblast

B. Only allantois

C. Trophoblast and mesoderm

D. Trophoblast and mesoderm and allantois

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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 number of chromosomes present in sperms

A. 46

B. 23

C. 23 + X

D. 23+ Y

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In menstrual cycle the secretory phase is also known as

A. luteal phase and lasts for 6 days

B. Luteal phase and lasts for 13 days

C. Follicular phase and lasts for 13 days

D. Follicular phase and lasts for 6 days

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Chorionic gonadotropin is secreted by ...

A. Pituitary

B. Ovary

C. Placenta

D. Uterus

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Sickle cell anaemia induce to

A. Change of amino acid in a- chain of haemoglobin

B. Change of amino acid in b- chain of haemoglobin

C. Change of amino acid in both a and b chains of haemoglobin

D. Change of amino acid either a or b chains of haemoglobin

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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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Which layer of embryo is formed first

A. ectoderm

B. Mesoderm

C. Endoderm

D. Mesenchyma

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Secretion of testosterone is stimulated by

A. FSH

B. TSH

C. ICSH

D. ACTH

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Cryptorchidism is ...

A. Nondescent of testes in scrotum

B. Nondevelopment of testes

C. Removal of scrotum

D. Breaking connection of vas deferens

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The embryonic stage that resembles a mulberry fruit is

A. Nerula

B. Gastrula

C. Morula

D. Blastula

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Which one of the following is produced early in the life of a human female?

A. Relaxin

B. Oxytocin

C. Prolactin

D. Progesterone

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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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Corpus luteum secretes

A. Lh

B. Estrogen

C. Progesterone

D. Fsh

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Erythroblastosis foetalis is caused by fertilization between the gametes of

A. Rh -ve female and rh+ ve male

B. Rh+ ve female and rh -ve male

C. Rh+ ve female and rh+ ve male

D. Rh~ ve female and rh -ve male

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Immediately after ovulation, the ovum is covered by a membrane called

A. Chorion

B. Zona pellucida

C. Corona radiata

D. Vitelline membrane

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Gestation period of 280 days is calculated from time of ...

A. Last menstruation

B. Fertilization

C. First day of last menstruation

D. Ovulation

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Amniotic fluid protects the foetus from ...

A. Shock

B. Abortion

C. Degeneration

D. Disease

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Thick layer which surrounds the ovum is ...

A. Zona pellucida

B. Membrana granulosa

C. Corona radiata

D. Theca interna

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Human embryo is enclosed by a sac called

A. Scrotum

B. Ericardium

C. Placenta

D. Amniotic sac

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At the end of meiosis I, the Oocyte yields

A. Secondary Oocyte and first polar body

B. First polar body

C. Secondary Oocyte

D. Second polar body

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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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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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The hormone responsible for enlargement of mammary glands at puberty is

A. Progesterone

B. Oestrogen

C. Testosterone

D. Oxytocin

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What is the name of the inner lining of the uterus?

A. Myometrium

B. Endometrium

C. Epithelium

D. Endothelium