Combined Oral contraceptives prevent pregnancy by
Tubal block
Preventing spermatogenesis
Forming a barrier between the ovum and sperm
Suppressing ovulation
Correct Answer :
D. Suppressing ovulation
Related Questions
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
Combined Oral contraceptives prevent pregnancy by
Tubal block
Preventing spermatogenesis
Forming a barrier between the ovum and sperm
Suppressing ovulation
The number of chromosomes present in sperms
46
23
23 + X
23+ Y
Chorionic gonadotropin is secreted by ...
Pituitary
Ovary
Placenta
Uterus
Fertility in women may be impaired by
Hypertension
Gall stones
Obesity
Short stature
Pregnancy is ascertained by
Insemination
Copulation
Implantation
Capacitation
Pregnancy can be detected as early as on
28 th day of cycle
8th week
40 th day of the cycle
10 th week
HCG, HPL and relaxin are produced in women ...
At puberty
During pregnancy
Before puberty
At menopause
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
Which one of the following is produced early in the life of a human female?
Relaxin
Oxytocin
Prolactin
Progesterone
The surgical method of contraception in males
Hysterectomy
Vasectomy
Castration
Circumcision
In human embryo, the digestive system develops from the
Epithelium
Mesoderm
Endoderm
Ectoderm
After ovulation graffian follicles turns into
Corpus luteum
Corpus albicans
Corpus callosum
Corpus artesia
Human eggs are
Mesolecithel
Microlecithel
Macrolecithel
Alecithel
The male hormone testosterone is secreted by
Sertoli cells
Leydig cells
Crypt cells
Semniferous tubules
Pregnancy begins with implantation of
Embryo
Fertilized ovum
Blastopore
Blastocyst
Mammary glands are modification of ...
Sebaceous glands
Sweat glands
Meibomian glands
None of the above
Which layer of embryo is formed first
ectoderm
Mesoderm
Endoderm
Mesenchyma
Embryo at 16-celled stage is called ...
Morula
Blastula
Blastomere
Gastrula
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
Normal sperm count is
40 to 300 million per ml
10 to 20 million per ml
< 10 million per ml
200 million per ml
Sertoli cells are found in
Seminiferous tubules
Ovaries
Prostate gland
Semen
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
Highly sophisticated procedure of injecting sperm directly into the ovum is
GIFT
ZIFT
ICSI
IUI
Corona radiata is held by...
Mucopolysaccharide
Oligosaccharide
Lipopolysaccharide
Lipoprotein
Gestation period of 280 days is calculated from time of ...
Last menstruation
Fertilization
First day of last menstruation
Ovulation
The number and appearance of chromosomes in the nucleus of a eukaryotic cell is called as
Karyotype
Genotype
Phenotype
Cytogenetics
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
Prostate gland produces a secretion for ...
Attracting sperms
Stimulating sperm activity
Inhibiting sperm activity
None of the above
Which cells provide nutrition to the sperms?
Sertoli cells
Leydig cells
Crypt cells
Semniferous tubules