1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is :
A
spermatocyte - spermatogonia - spermatid - sperms
B
spermatogonia - spermatid - spermatocyte - sperms
C
spermatid - spermatocyte - spermatogonia - sperms
D
spermatogonia - spermatocyte - spermatid - sperms
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which one of the following is the correct matching of the events occurring during menstrual cycle ?
A
Ovulation: LH and FSH attain peak level and sharp fall in the secretion of progesterone
B
Menstruation: Breakdown of myometrium and ovum not fertilized
C
Secretory phase : Development of increased secretion corpus luteum and of progesterone
D
Proliferative phase : Rapid regeneration of myometrium and maturation of Grafian follicle
3
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female ?
A
Retention of well-developed corpus luteum
B
Maintenance of high concentration of sexhormones in the blood stream
C
Maintenance of the hypertrophical endometrial lining
D
Fertilization of the ovum
4
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
Which one of the following pairs of animals comprises 'jawless fishes'?
A
Mackerals and rohu
B
Lampreys and hag fishes
C
Guppies and hag fishes
D
Lampreys and eels