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Current Affairs January 2024

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Embryo at 16-celled stage is called ...

A. Morula

B. Blastula

C. Blastomere

D. Gastrula

Correct Answer :

A. Morula


Related Questions

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Pregnancy test is confirmed by the presence of

A. Prolactin in urine

B. Relaxin in urine

C. H c g in urine

D. Fsh and lh in urine

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In humans female ovulation occurs during menstrual cycle

A. At the end of proliferative phase

B. At the beginning of proliferative phase

C. Before the end of secretary phase

D. In the middle of secretary phase

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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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Pregnancy is ascertained by

A. Insemination

B. Copulation

C. Implantation

D. Capacitation

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Combined Oral contraceptives prevent pregnancy by

A. Tubal block

B. Preventing spermatogenesis

C. Forming a barrier between the ovum and sperm

D. Suppressing ovulation

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Corona radiata is held by...

A. Mucopolysaccharide

B. Oligosaccharide

C. Lipopolysaccharide

D. Lipoprotein

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During ovulation, for favourable sperm travel oestrogen causes

A. Cervical mucus to become stretchy and clear

B. Less cervical mucus production

C. Tenderness of cervix

D. Slight vaginal bleeding

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4

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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After ovulation graffian follicles turns into

A. Corpus luteum

B. Corpus albicans

C. Corpus callosum

D. Corpus artesia

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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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Number of chromosomes in secondary oocyte stage in humans is ...

A. 23

B. 46

C. 18

D. 20

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After fertilization, implantation of human embryo takes place on

A. 10 th day

B. 14 th day

C. 7 th day

D. 3 rd day

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Haemophilia is more common in males because it is a

A. Recessive character carried by y-chromosome

B. Dominant character carried by y-chromosome

C. Dominant trait carried by x-chromosome

D. Recessive trait carried by x-chromosome

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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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Medical termination of pregnancy is safe till how many weeks of pregnancy?

A. 10 weeks

B. 12 weeks

C. 20 weeks

D. 22 weeks

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Villi of human placenta develop from ..

A. Chorion

B. Allantois

C. Yolk sac

D. Amnion

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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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In which phase of menstrual cycle ovulation occurs in

A. Luteal

B. Menstrual

C. Proliferative

D. Secretory

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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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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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Failure of the brain to grow in the foetus may result in:

A. Plagiocephaly

B. Craniostenosis

C. Anencephaly

D. Microcephaly

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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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The surgical method of contraception in males

A. Hysterectomy

B. Vasectomy

C. Castration

D. Circumcision

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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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The pelvic inflammatory disease is common with which type of contraception?

A. Oral contraceptive pills

B. Diaphragms

C. Condoms

D. Intra uterine devices

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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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Total numbers of ovum released in the life time of a woman is approximately

A. 40

B. 400

C. 4000

D. 20000

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A child's blood group is 'o'. The parent's blood groups cannot be

A. A AND B

B. A AND A

C. AB AND O

D. B AND O

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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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Mammary glands are modification of ...

A. Sebaceous glands

B. Sweat glands

C. Meibomian glands

D. None of the above