If mammalian ovum fails to get fertilized, which one of the following is unlikely?
Corpus luteum will disintegrate.
Estrogen secretion further decreases.
Primary follicle starts developing.
Progesterone secretion rapidly declines.
At the time of organogenesis, genes regulate the process at different levels and at different time due to:
Promoter
Regulator
Intron
Exon
Probability of four sons to a couple is:
1/4
1/8
1/16
1/32
After ovulation, Graafian follicle regresses into:
Corpus Luteum
Corpus Callosum
Corpus Albicans
Corpus Artesia
What is true for cleavage?
Size of embryo increases
Size of cells decreases
Size of cells increases
Size of embryo decreases
Seminal plasma in human is rich in:
Fructose, calcium and certain enzymes.
Fructose and calcium but has no enzymes.
Glucose and certain enzymes but has no calcium.
Fructose and certain enzymes but poor in calcium.
During embryonic development, the establishment of polarity along anterior /posterior, dorsal /ventral or medial / lateral axis is called:
Anamorphosis
Pattern formation
Organizer phenomena
Axis formation
Which one of the following is the most likely reason of regular menstruation cycle not occurring in females ?
Fertilization of the ovum
Maintenance of the hypertrophical endometrial lining
Maintenance of high concentration of sex-hormones in the blood stream
Retention of well-developed corpus luteum
Given below is a diagrammatic sketch of a portion of human male reproductive system. Select the correct set of the names of the parts labelled A,B,C,D .
A B C D
Ureter Postate Seminal vesicle Bulbourethral gland
Vas deferens Seminal vesicle Prostate Bulbourethral gland
Vas deferens Seminal vesicle Bulbourethral gland Prostate
Ureter Seminal vesicle Prostate Bulbourethral gland.
Cleavage in mammalian egg is:
Equal holoblastic
Unequal holoblastic
Superficial meroblastic
Discoidal meroblastic
