Which one takes part in formation of placenta? ...
Only trophoblast
Only allantois
Trophoblast and mesoderm
Trophoblast and mesoderm and allantois
Correct Answer :
D. Trophoblast and mesoderm and allantois
Related Questions
In which phase of menstrual cycle ovulation occurs in
Luteal
Menstrual
Proliferative
Secretory
Layers of ovum from outside to inside are .
Corona radiata, zona pellucida, vitelline membrane
Zona pellucida, corona radiata, vitelline membrane
Vitelline membrane, zona pellucida, corona radiata
Zona pellucida, vitelline membrane, corona radiate
Which one of the following is produced early in the life of a human female?
Relaxin
Oxytocin
Prolactin
Progesterone
Temperature in scrotum necessary for sperm formation is usually ...
2°c above body temperature
2° c below body temperature
4°c above body temperature
4° c below body temperature
Ovulation occurs under the influence of high titre of
LH
FSH
Estrogen
Progesterone
The most important region of the decidua for the nourishment of the conceptus is the deciduas
Frondosum
Capsularis
Parietalis
Basalis
The surgical method of contraception in males
Hysterectomy
Vasectomy
Castration
Circumcision
The embryonic stage that resembles a mulberry fruit is
Nerula
Gastrula
Morula
Blastula
A genetically diseased father (male) marries with a normal female and gives birth to 3 carrier girls and 5 normal sons. Find out the type of genetic disease.
Sex-influenced disease
Blood group inheritance disease
Sex-linked disease
Sex-recessive disease
The rate of active movement of sperm is ...
1.5 -3.0 mm/min
1.5 - 3.0 cm/min
1.5 -3.0 m/min
1.5 -3.0 m/hr
Embryo at 16-celled stage is called ...
Morula
Blastula
Blastomere
Gastrula
Hormones that control the growth and maturation of graffian follicle is
FSH - LH
FSH - ICSH
ACTH - LH
GH - ADH
Decreased motility of sperm <40 % is known as
Azoospermia
Oligospermia
Asthenozoospermia
Necrozoospermia
Forensic investigation of rape case focuses on the presence of fructose in female reproductive system, the only part of the human body producing fructose is
Cowper's gland
Prostate gland
Testes
Seminal vesicle
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
In a semen analysis, the following is not acceptable as normal�
25 % abnormal forms
60% motility after 3 hours
Mild Alkaline reaction
Sperm count of 17 million per ml.
During ovulation, for favourable sperm travel oestrogen causes
Cervical mucus to become stretchy and clear
Less cervical mucus production
Tenderness of cervix
Slight vaginal bleeding
The pelvic inflammatory disease is common with which type of contraception?
Oral contraceptive pills
Diaphragms
Condoms
Intra uterine devices
Which part of the foetus is developed from mesoderm?
Heart and notochord
Heart and brain
Spinal cord and notochord
Brain and notochord
Third phase of embryo development is ...
Cleavage
Fertilization
Gametogenesis
Gastrulation
Level of estrogen and progesterone are minimum at the time of
Follicular phase
Ovulation
Secretory phase
Onset of menstrual phase
Membrane that gives protection to embryo from external shocks is
Amnion
Allantois
Chorion
Placenta
What are the chances of a normal fertile couple having a baby in one year?
40%
80%
20%
50%
The number of chromosomes present in sperms
46
23
23 + X
23+ Y
What is the name of the inner lining of the uterus?
Myometrium
Endometrium
Epithelium
Endothelium
Correct sequence in embryonic development is ..
Fertilization -> zygote -> cleavage -> morula -> blastula -> gastrula
Fertilization -> zygote -> cleavage -> blastula -> morula -> gastrula
Fertilization -> zygote -> cleavage -> morula -> blastula -> gastrula
Fertilization -> zygote -> gastrulae -> morula -> blastula -> cleavage
Tunica albuginea is related to
Prostate gland
Pituitary gland
Hypothalamus
Testes
Human embryo is enclosed by a sac called
Scrotum
Ericardium
Placenta
Amniotic sac
Combined Oral contraceptives prevent pregnancy by
Tubal block
Preventing spermatogenesis
Forming a barrier between the ovum and sperm
Suppressing ovulation
Human female reaches menopause at the age of about ...
25 years
35 years
50 years
70 years