Acrosome of sperm contains ...
Hyaluronidase and acrosin
Hyaluronic acid and acrosin
Hippuric acid and uric acid
Testosterone
Correct Answer :
A. Hyaluronidase and acrosin
Related Questions
The most important region of the decidua for the nourishment of the conceptus is the deciduas
Frondosum
Capsularis
Parietalis
Basalis
The functional unit of testis of man is ...
Uriniferous tubules
Malpighian tubules
Seminiferous tubules
Acini or lobules
Acrosome occurs in the sperm in
Tail part
Behind the nucleus
Middle piece
Tip
Failure of the brain to grow in the foetus may result in:
Plagiocephaly
Craniostenosis
Anencephaly
Microcephaly
Combined Oral contraceptives prevent pregnancy by
Tubal block
Preventing spermatogenesis
Forming a barrier between the ovum and sperm
Suppressing ovulation
Fertilization is fusion of ..
Diploid spermatozoan with diploid ovum to form diploid zygote
Haploid spermatozoan with diploid ovum to form diploid zygote
Diploid spermatozoan with haploid ovum to form diploid zygote
Haploid spermatozoan with haploid ovum to form diploid zygote
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
When is the best time to get FSH levels checked?
Day 7 of the menstrual cycle
Day 21 of the menstrual cycle
Day 3 of the menstrual cycle
Day 14 of the menstrual cycle
Villi of human placenta develop from ..
Chorion
Allantois
Yolk sac
Amnion
Embryo at 16-celled stage is called ...
Morula
Blastula
Blastomere
Gastrula
Immediately after ovulation, the ovum is covered by a membrane called
Chorion
Zona pellucida
Corona radiata
Vitelline membrane
Which one is not the function of human placenta
Helps co2 and excretory products pass from foetus to mother's body
Helps o2 and nutrients from mother's body enter the foetus
Secretes hormones
It protects foetus from mechanical shocks
A marriage between man with normal vision and colour blind woman will give birth to
Colour blind sons and 50% carrier daughter
50% colourblind sons and 50% carrier daughter
Normal males and carrier daughters
Colour blind sons and carrier daughters.
Human embryo is enclosed by a sac called
Scrotum
Ericardium
Placenta
Amniotic sac
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
Albinism is a congenital disorder resulting from the lack of which enzyme?
Tyrosinase
Xanthine oxidase
Catalase
Fructokinase.
Cri-du-chat syndrome in humans is caused by the
Trisomy of 21st chromosome
Fertilization of an xx egg by a normal y-bearing sperm
Loss of half of the short arm of chromosome 5
Loss of half of the long arm of chromosome 5
In which phase of menstrual cycle ovulation occurs in
Luteal
Menstrual
Proliferative
Secretory
Pregnancy begins with implantation of
Embryo
Fertilized ovum
Blastopore
Blastocyst
Normal sperm count is
40 to 300 million per ml
10 to 20 million per ml
< 10 million per ml
200 million per ml
Increase in basal body temperature in the middle of menstrual cycle is a sign of
Fertilization
Onset of menstruation
Menopause
Ovulation
HCG, HPL and relaxin are produced in women ...
At puberty
During pregnancy
Before puberty
At menopause
The middle piece of the sperm contains
Protein
Nucleus
Mitochondria
Centriole
In uterus, endometrium proliferates in response to ...
Relaxin
Oxytocin
Progesterone
Oestrogen
Decreased motility of sperm <40 % is known as
Azoospermia
Oligospermia
Asthenozoospermia
Necrozoospermia
The pre fertilisation process stage of sperm before entry into the ovum is called as
Maturation
Insemination
Capacitation
Fertilization
Which of the following is not a hereditary disease?
Cystic fibrosis
Thalassaemia
Haemophilia
Cretinism
Amniotic fluid protects the foetus from ...
Shock
Abortion
Degeneration
Disease
Name the pituitary hormone that regulates sertoli cells
Prolactin
LH
FSH
Oxytocin