NEET
Yakeen NEET 2.0 2025 (Legend)
Zoology
DPP: 5
Human Reproduction
Q1 How many follicles remain in each ovary of a
(B) a – iv, b – iii, c- i, d – ii
human female at puberty?
(C) a – ii, b – iv, c- i, d – iii
(A) 40,000-80,000 primary follicles
(D) a – i, b – iv, c- iii, d – ii
(B) 60,000-80,000 primary follicles
Q5 Find the correct sequence of events in
(C) 60,000-80,000 secondary follicles
oogenesis if fertilisation occurs
(D) 20,000-40,000 primary follicles
(A) Oogonia → primary oocyte → secondary
Q2 Oogenesis is initiated
oocyte → ovum
(A) At puberty
(B) Oogonia → secondary oocyte → primary
(B) At menarche
oocyte → ovum
(C) During childhood
(C) Oogonia → primary oocyte → ovum →
(D) During the embryonic development stage
secondary polar body
(D) Oogonia → first polar body → secondary
Q3 Which of the following is/are true for tertiary
oocyte → ovum
follicle?
(A) Presence of fluid filled cavity called antrum
Q6 Zona pellucida is
(B) Theca layer is organized into an inner theca
(A) Secreted by secondary oocyte
interna and an outer theca externa
(B) A glycoprotein layer
(C) Primary oocyte completes its first meiotic
(C) Another name of corona radiata
division in it
(D) Both (A) & (B)
(D) All of the above
Q7 Find the odd one out with respect to ploidy of
Q4 Match the following
a. Primary Follicle
b. Secondary Follicle
the cells
i.
ii.
60,000 – 80,000 left
(A) Primary Oocyte
in each ovary at the
(B) Ovum
time of puberty
(C) Secondary oocyte
Mature follicle that
(D) Second polar body
ruptures at the time of
ovulation
c. Tertiary Follicle
iii.
follicle is:
Primary oocyte
completes meiosis-I
More layers of
d. Graafian Follicle
iv.
Q8 Hormone that triggers rupture of Graafian
granulosa cells and a
(A) FSH
(B) LH
(C) Estrogen
(D) GnRH
Q9 Identify A, B, C, D correctly
theca layer
(A) a – iii, b – iv, c- i, d – ii
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Q13 Ovulation in the human female normally takes
place;
(A) at the mid secretory phase.
(B) just before the end of the secretory phase.
(C) at the beginning of the proliferative phase.
(D) at the end of the proliferative phase.
Q14 Which of the following hormone levels will cause
release of ovum (ovulation) from the Graafian
(A) A- Graafian follicle, B- secondary follicle, CCorpus albicans, D- Primary oocyte
(B) A- Tertiary follicle, B- Graffian follicle, C-
follicle?
(A) High concentration of progesterone
(B) Low concentration of LH
(C) Low concentration of FSH
Corpus luteum, D- Ovum
(C) A- Tertiary follicle, B- Graffian follicle, C-
(D) High concentration of LH
secondary oocyte, D- Corpus luteum
(D) A- Tertiary follicle, B- Corpus luteum, Csecondary oocyte, D- Corpus albicans
Q10 If fertilisation occurs, secondary oocyte
completes Meiosis II to form
(A) Two haploid, equal cells - second polar body,
ovum
(B) Two haploid, unequal cells - second polar
body, ovum
(C) Two haploid, unequal cells - first polar body,
second polar body
(D) Two diploid, unequal cells - second polar
body, ovum
Q11 Which of the following is not formed if
fertilization does not occur?
(A) First polar body
(B) Secondary oocyte
(C) Second polar body
(D) Primary oocyte
Q12
100
oogonia give rise to
(A) 100 Secondary oocytes
(B) 100 Ova
(C) 100 Primary oocytes
(D) All of the above
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Answer Key
Q1
(B)
Q8
(B)
Q2
(D)
Q9
(C)
Q3
(D)
Q10
(B)
Q4
(D)
Q11
(C)
Q5
(A)
Q12
(D)
Q6
(D)
Q13
(D)
Q7
(A)
Q14
(D)
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