Mongolian idiocy due to trisomy in 21st chromosome is known as
Downs syndrome
Turners syndrome
Klinefelters syndrome
Triple x syndrome
Correct Answer :
A. Downs syndrome
Related Questions
Highly sophisticated procedure of injecting sperm directly into the ovum is
GIFT
ZIFT
ICSI
IUI
Corpus luteum secretes
Lh
Estrogen
Progesterone
Fsh
Approximately how long does it take for a spermatocyte to complete its differentiation into a spermatozoan in the testis?
7 days
70 days
7 months
70 hours
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
Which part of the ovary act as an endocrine gland in human beings
Stroma
Vitteline membrane
Graffian follicle
Epithelium
In human embryo, the digestive system develops from the
Epithelium
Mesoderm
Endoderm
Ectoderm
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
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
The middle piece of the sperm contains
Protein
Nucleus
Mitochondria
Centriole
Identical twins are also known as ..
monozygotic twins
Dizygotic twins
Fraternal twins
Zygotic twins
The number and appearance of chromosomes in the nucleus of a eukaryotic cell is called as
Karyotype
Genotype
Phenotype
Cytogenetics
Villi of human placenta develop from ..
Chorion
Allantois
Yolk sac
Amnion
Gestation period of 280 days is calculated from time of ...
Last menstruation
Fertilization
First day of last menstruation
Ovulation
What is the best sperm extraction technique for men with obstructive azoospermia?
TESE - Microsurgical testicular sperm extraction
Percutaneous Epididymal Sperm Aspiration (PESA)
Intra cytoplasmic sperm injection ( ICSI)
Fine needle aspiration
In a 28 day menstrual cycle, ovulation occurs on ...
Day 1
Day 5
Day 14
Day 28
The most important region of the decidua for the nourishment of the conceptus is the deciduas
Frondosum
Capsularis
Parietalis
Basalis
The pelvic inflammatory disease is common with which type of contraception?
Oral contraceptive pills
Diaphragms
Condoms
Intra uterine devices
Which one takes part in formation of placenta? ...
Only trophoblast
Only allantois
Trophoblast and mesoderm
Trophoblast and mesoderm and allantois
Haemophilic man marries a normal woman. Their off springs will be
All haemophilic
All boys haemophilic
All girls haemophilic
All normal
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
Immediately after ovulation, the ovum is covered by a membrane called
Chorion
Zona pellucida
Corona radiata
Vitelline membrane
Pregnancy test is confirmed by the presence of
Prolactin in urine
Relaxin in urine
H c g in urine
Fsh and lh in urine
After fertilization, implantation of human embryo takes place on
10 th day
14 th day
7 th day
3 rd day
Which of the following statements is most correct about the human menstrual cycle.
The menstrual cycle in all women is a 28 day cycle
Ovulation always occurs at the midpoint of the menstrual cycle
A high body temperature indicates ovulation is occurring
The menstrual cycle is an endocrine cycle regulating reproductive physiological changes
Hormones that control the growth and maturation of graffian follicle is
FSH - LH
FSH - ICSH
ACTH - LH
GH - ADH
Menstrual phase is followed by .
Luteal phase
Follicular phase
Fertilization
Implantation
Third phase of embryo development is ...
Cleavage
Fertilization
Gametogenesis
Gastrulation
Human embryo is enclosed by a sac called
Scrotum
Ericardium
Placenta
Amniotic sac
Chorionic gonadotropin is secreted by ...
Pituitary
Ovary
Placenta
Uterus
The surgical method of contraception in males
Hysterectomy
Vasectomy
Castration
Circumcision