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NEET • BIOLOGY • HUMAN REPRODUCTION
Human reproduction practice · Mixed difficulty
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Showing 241-247 of 247 questions
241
Easy
241 of 247
Understanding
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In menstrual cycle when corpus luteum regressed
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Correct option: C
At Secretory phase
Option C (At Secretory phase) is correct because the corpus luteum, which secretes progesterone, regresses if fertilization does not occur, leading to menstruation during the secretory phase.
242
Medium
242 of 247
Remembering
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The correct sequence of male reproductive structures of humanthrough which sperms pass out is I. Rete testes II. Vasa efferentia III. Epididymis IV. Vasa deferentia
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Correct option: A
I, II, III, IV
Option A (I, II, III, IV) is correct because the correct sequence is Rete testes, Vasa efferentia, Epididymis, and Vasa deferentia.
243
Hard
243 of 247
Remembering
+4 | -1
Which of the following statements are correct
with respect to hormones secreted by
placenta?
(i) Placenta secretes relaxin during later stage of
pregnancy.
(ii) Placenta secretes high amount of FSH during
pregnancy.
(iii) Placenta secretes relaxin during initial stage
of pregnancy.
(iv) Placenta secretes hCG and hPL during
pregnancy.
with respect to hormones secreted by
placenta?
(i) Placenta secretes relaxin during later stage of
pregnancy.
(ii) Placenta secretes high amount of FSH during
pregnancy.
(iii) Placenta secretes relaxin during initial stage
of pregnancy.
(iv) Placenta secretes hCG and hPL during
pregnancy.
View answer and explanation
Correct option: A
(i) and (iv)
Option A ((i) and (iv)) is correct because the placenta secretes relaxin during the later stages of pregnancy, and hCG and hPL throughout pregnancy.
244
Easy
244 of 247
Remembering
+4 | -1
Sertoli cells are also called
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Correct option: A
Sustentacular cells
Option A (Sustentacular cells) is correct because Sertoli cells are also known as sustentacular cells due to their supportive role in spermatogenesis.
245
Medium
245 of 247
Remembering
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A pair of bulbourethral gland also called …A… gland present on the either side of …B… . It secrets …C… fluid and …D… for lubricating the penis. Here A, B, C and D are
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Correct option: A
A-Cowper’s, B-Urethra, C-Alkaline, D-Mucous
Option A (A-Cowper’s, B-Urethra, C-Alkaline, D-Mucous) is correct because Cowper's glands (bulbourethral glands) are located on either side of the urethra and secrete an alkaline, mucous-rich fluid.
246
Medium
246 of 247
Remembering
+4 | -1
Soon after implantation, the inner cell mass differentiation into outer ….A…. and inner …B… occurs ….C…. soon appears between ectoderm and mesoderm. A, B and C in the above sentence are
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Correct option: B
A-ectoderm, B-mesoderm, C-endoderm
Option C (A-ectoderm, B-endoderm, C-mesoderm) is correct because after implantation, the inner cell mass differentiates into the ectoderm and endoderm, and mesoderm appears between them.
247
Medium
247 of 247
Remembering
+4 | -1
The uterus opens into the vagina by a canal called
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Correct option: A
Cervical canal
Option A (Cervical canal) is correct because the uterus opens into the vagina through the cervical canal.
Revision notes and key takeaways
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