Pregnancy can be detected as early as on
28 th day of cycle
8th week
40 th day of the cycle
10 th week
Correct Answer :
A. 28 th day of cycle
Related Questions
Number of chromosomes in secondary oocyte stage in humans is ...
23
46
18
20
Third phase of embryo development is ...
Cleavage
Fertilization
Gametogenesis
Gastrulation
HCG, HPL and relaxin are produced in women ...
At puberty
During pregnancy
Before puberty
At menopause
Pregnancy can be detected as early as on
28 th day of cycle
8th week
40 th day of the cycle
10 th week
Membrane that gives protection to embryo from external shocks is
Amnion
Allantois
Chorion
Placenta
Secretion of testosterone is stimulated by
FSH
TSH
ICSH
ACTH
Most of major organs of human embryo are formed by the
16th week of pregnancy
15th week of pregnancy
14th week of pregnancy
12th week of pregnancy
Human female reaches menopause at the age of about ...
25 years
35 years
50 years
70 years
Haemophilic man marries a normal woman. Their off springs will be
All haemophilic
All boys haemophilic
All girls haemophilic
All normal
A child's blood group is 'o'. The parent's blood groups cannot be
A AND B
A AND A
AB AND O
B AND O
Sertoli cells are found in
Seminiferous tubules
Ovaries
Prostate gland
Semen
The number of chromosomes present in sperms
46
23
23 + X
23+ Y
Decreased motility of sperm <40 % is known as
Azoospermia
Oligospermia
Asthenozoospermia
Necrozoospermia
Cryptorchidism is ...
Nondescent of testes in scrotum
Nondevelopment of testes
Removal of scrotum
Breaking connection of vas deferens
Villi of human placenta develop from ..
Chorion
Allantois
Yolk sac
Amnion
Identical twins are also known as ..
monozygotic twins
Dizygotic twins
Fraternal twins
Zygotic twins
Pregnancy is ascertained by
Insemination
Copulation
Implantation
Capacitation
Prostate gland produces a secretion for ...
Attracting sperms
Stimulating sperm activity
Inhibiting sperm activity
None of the above
What happens during fertilization when many sperms reach close to ovum ....
Cells of corona radiata trap all the sperm except one
Only two sperms nearest to ovum penetrate zona pellucida
Secretion of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida
All sperms except the one nearest to ovum lose their tails
At the end of meiosis I, the Oocyte yields
Secondary Oocyte and first polar body
First polar body
Secondary Oocyte
Second polar body
Menstrual phase is followed by .
Luteal phase
Follicular phase
Fertilization
Implantation
Which part of the foetus is developed from mesoderm?
Heart and notochord
Heart and brain
Spinal cord and notochord
Brain and notochord
What are the chances of a normal fertile couple having a baby in one year?
40%
80%
20%
50%
Part of fallopian tube closest to ovary is
Infundibulum
Cervix
Ampulla
Isthmus
Highly sophisticated procedure of injecting sperm directly into the ovum is
GIFT
ZIFT
ICSI
IUI
Correct sequence of hormone secretion from beginning of menstruation is ...
FSH, progesterone, estrogen
Estrogen, fsh, progesterone
FSH, estrogen, progesterone
Estrogen, progesterone, FSH
The pre fertilisation process stage of sperm before entry into the ovum is called as
Maturation
Insemination
Capacitation
Fertilization
Embryo at 16-celled stage is called ...
Morula
Blastula
Blastomere
Gastrula
Total numbers of ovum released in the life time of a woman is approximately
40
400
4000
20000
Cell division that occurs in zygote is called
meiosis
Mitosis
Cleavage
Differentiation