Biology Grade 12 ISC
Quiz by Diksha Chaturvedi
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- Q1
Find the odd one out.
Lactiferous duct
Clitoris
Labia majora
Mons pubis
30s - Q2
About which day in a normal human menstrual cycle does rapid secretion of LH [popularly called LH surge] normally occurs?
5th day
20th day
11th day
14th day
30s - Q3
In the absence of acrosome, the sperm:
cannot get energy
cannot penetrate the egg
cannot swim
cannot get food
30s - Q4
Assertion: The myometrium undergoes cyclical changes during menstrual cycle. Reason: The endometrium exhibits weak contractions during of the baby.
Both assertion and reason are true and reason is the correct explanation of assertion.
Assertion is true,but reason is false.
Bothassertion and reason are false.
Both assertion and reason are true, but reason is not the correct explanation of assertion
10s - Q5
Prostate gland is present-
around urethra
on ureter
on kidney
on testis
10s - Q6
Portion of placenta contributed by the embryo is the:
Yolk sac
Allantois
Amnion
chorion
10s - Q7
Sperms produce an enzymatic substance for dissolving egg membrane called
Androgen
Estrogen
hyaluronidase
Hyaluronic acid
10s - Q8
The Leydig cells found in the human body are the secretory source of:
Progesterone
Glucagon
Androgens
Intestinal mucus
10s - Q9
The spermatogonia undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above
Primary spermatocytes divide by mitotic cell division
Spermatozoa are transformed into spermatids
Spermatogonia have 46 chromosomes and alwaysundergo meiotic cell division
Secondary spermatocytes have 23 chromosomes and undergo second meiotic division.
30s - Q10
The technique called Gamete Intra Fallopian Transfer (GIFT) is recommended for those females
Who cannot retain the foetus inside uterus
Who cannot provide suitable environment for fertilization
Who cannot produce an ovum.
Whose cervical canal is too narrow to allow the passage for the sperms
30s - Q11
In which year was ‘Family Planning’ programe launched?
1905
1925
1951
1947
30s - Q12
.................is not a sexually transmitted disease.
Gonorrhoea
Syphilis
Trichomoniasis
Encephalitis
30s - Q13
Sexually transmitted disease symptomized by the development of chancre on the genitalsis caused by the infection of .................
hepatitis B virus
Neisseria gonorrhoeae
human immunodeficiency virus
Treponemapallidum
30s - Q14
Days of periodic abstinence are:
17–20 days of menstrual phase.
10–11 days of menstrual phase.
10–17days of menstrual phase.
20–28 days of menstrual phase.
30s - Q15
Fitness according to Darwin refers to:
strength of an individual
useful variation in population
number of species in a community
reproductive fitness of an organism
30s