Chapter Exam

Unit 6: Reproduction — Online MCQ Test

Q: Meiotic division of the secondary oocyte is completed:

Answer: C. At the time of fusion of a sperm with an ovum — The second meiotic division in the secondary oocyte is triggered to complete only when a sperm penetrates the zona pellucida during fertilization.

Q: In which of the following techniques, the embryos are transferred to assist those females who cannot conceive?

Answer: D. ZIFT and IUT — ZIFT (Zygote Intra Fallopian Transfer) and IUT (Intra Uterine Transfer) are techniques where the embryo is transferred into the female body.

Q: Match the following columns and select the correct option. Column I: (a) Placenta, (b) Zona pellucida, (c) Bulbo-urethral glands, (d) Leydig cells Column II: (i) Androgens, (ii) Human Chorionic Gonadotropin (hCG), (iii) Layer of the ovum, (iv) Lubrication of the Penis

Answer: C. (3) (ii) (iii) (iv) (i) — Placenta produces hCG (ii), Zona pellucida is the layer of the ovum (iii), Bulbo-urethral glands provide lubrication to the penis (iv), and Leydig cells produce androgens (i).

Q: What are the potential drawbacks in adoption of the IVF method? A. High fatality risk to mother B. Expensive instruments and reagents C. Husband/wife necessary for being donors D. Less adoption of orphans E. Not available in India F. Possibility that the early embryo does not survive Choose the correct answer from the options given below:

Answer: A. B, D, F only. — NCERT highlights that IVF is expensive, requires specialized skills, and involves social issues like the availability of embryos or adoption concerns.

Q: The first menstruation is called:

Answer: B. Menarche — The first onset of menstruation at puberty is termed menarche.

Q: Attractants and rewards are required for

Answer: C. Entomophily — Entomophily (insect pollination) requires floral rewards like nectar and pollen, and visual/scent attractants to encourage pollinators to visit.

Q: The amnion of mammalian embryo is derived from

Answer: A. ectoderm and mesoderm — The amnion is an extra-embryonic membrane derived from ectoderm (inner layer) and somatic mesoderm (outer layer). It forms the amniotic sac filled with amniotic fluid that protects the embryo.

Q: Hormones secreted by the placenta to maintain pregnancy are

Answer: B. hCG, hPL, progestogens, estrogens — The placenta is an endocrine organ that secretes several hormones to maintain pregnancy: human chorionic gonadotropin (hCG), human placental lactogen (hPL), estrogens, and progestogens. Oxytocin is secreted by the posterior pituitary, prolactin by anterior pituitary, and glucocorticoids by the adrenal cortex — not by the placenta.

BIOLOGY · NEET (All) · NEET

Practice Unit 6: Reproduction with a free chapter-wise online MCQ test for NEET NEET (All) BIOLOGY. This chapter covers: Sexual reproduction in flowering plants: Flower structure; Development of male and female gametophytes; Pollination-types agencies and examples; Outbreeding devices; Pollen-Pistil.... AI-generated questions from basic to board-exam level, with instant results and explanations.

Questions

20m

Time Limit

Attempts Left

10 random questions from this chapter (mixed difficulty)
Questions you've seen before won't repeat until the pool resets
You have 20 minutes — exam auto-submits when time is up
Maximum 3 attempts per chapter
Results and explanations shown immediately after submission

New here? Register free — includes 3 free chapter exams.

Unit 6: Reproduction — Important Questions & Answers (FAQ)

Frequently asked questions from NEET NEET (All) BIOLOGY — Unit 6: Reproduction, with answers and explanations. These are sample questions; the exam has its own separate question set.

Meiotic division of the secondary oocyte is completed:

A. At the time of copulation
B. After zygote formation
C. At the time of fusion of a sperm with an ovum ✓
D. Prior to ovulation

Answer: C. At the time of fusion of a sperm with an ovum
The second meiotic division in the secondary oocyte is triggered to complete only when a sperm penetrates the zona pellucida during fertilization.

In which of the following techniques, the embryos are transferred to assist those females who cannot conceive?

A. GIFT and ZIFT
B. ICSI and ZIFT
C. GIFT and ICSI
D. ZIFT and IUT ✓

Answer: D. ZIFT and IUT
ZIFT (Zygote Intra Fallopian Transfer) and IUT (Intra Uterine Transfer) are techniques where the embryo is transferred into the female body.

Match the following columns and select the correct option. Column I: (a) Placenta, (b) Zona pellucida, (c) Bulbo-urethral glands, (d) Leydig cells Column II: (i) Androgens, (ii) Human Chorionic Gonadotropin (hCG), (iii) Layer of the ovum, (iv) Lubrication of the Penis

A. (1) (i) (iv) (ii) (iii)
B. (2) (iii) (ii) (iv) (i)
C. (3) (ii) (iii) (iv) (i) ✓
D. (4) (iv) (iii) (i) (ii)

Answer: C. (3) (ii) (iii) (iv) (i)
Placenta produces hCG (ii), Zona pellucida is the layer of the ovum (iii), Bulbo-urethral glands provide lubrication to the penis (iv), and Leydig cells produce androgens (i).

What are the potential drawbacks in adoption of the IVF method? A. High fatality risk to mother B. Expensive instruments and reagents C. Husband/wife necessary for being donors D. Less adoption of orphans E. Not available in India F. Possibility that the early embryo does not survive Choose the correct answer from the options given below:

A. B, D, F only. ✓
B. A, C, D, F only
C. A, B, C, D only
D. A, B, C, E, F only

Answer: A. B, D, F only.
NCERT highlights that IVF is expensive, requires specialized skills, and involves social issues like the availability of embryos or adoption concerns.

Given below are two statement: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Both wind and water pollinated flowers are not very colourful and do not produce nectar. Reason (R): The flowers produce enormous amount of pollen grains in wind and water pollinated flowers. In the light of the above statements, choose the correct answer from the options given below:

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is NOT the correct explanation of A. ✓
C. A is true but R is false.
D. A is false but R is true.

Answer: B. Both A and R are true but R is NOT the correct explanation of A.
Both statements are correct (non-colourful and nectarless flowers are typical for wind/water pollination, and they produce copious pollen). However, the reason for being non-colourful is that they do not need to attract biotic pollinators, while the reason for high pollen count is to compensate for the high probability of wastage.

Match List-I with List-II.

A. A. Head I. Enzymes; B. Middle piece II. Sperm motility; C. Acrosome III. Energy; D. Tail IV. Genetic material ✓
B. A. Head IV. Genetic material; B. Middle piece III. Energy; C. Acrosome I. Enzymes; D. Tail II. Sperm motility
C. A. Head III. Energy; B. Middle piece IV. Genetic material; C. Acrosome II. Sperm motility; D. Tail I. Enzymes
D. A. Head III. Energy; B. Middle piece II. Sperm motility; C. Acrosome I. Enzymes; D. Tail IV. Genetic material

Answer: A. A. Head I. Enzymes; B. Middle piece II. Sperm motility; C. Acrosome III. Energy; D. Tail IV. Genetic material
Head contains genetic material (nucleus), Acrosome contains enzymes (hyaluronidase), Middle piece contains mitochondria providing energy, Tail provides sperm motility.

The first menstruation is called:

A. Menopause
B. Menarche ✓
C. Diapause
D. Ovulation

Answer: B. Menarche
The first onset of menstruation at puberty is termed menarche.

Attractants and rewards are required for

A. Cleistogamy
B. Anemophily
C. Entomophily ✓
D. Hydrophily

Answer: C. Entomophily
Entomophily (insect pollination) requires floral rewards like nectar and pollen, and visual/scent attractants to encourage pollinators to visit.

The amnion of mammalian embryo is derived from

A. ectoderm and mesoderm ✓
B. ectoderm and endoderm
C. mesoderm and trophoblast
D. endoderm and mesoderm

Answer: A. ectoderm and mesoderm
The amnion is an extra-embryonic membrane derived from ectoderm (inner layer) and somatic mesoderm (outer layer). It forms the amniotic sac filled with amniotic fluid that protects the embryo.

Hormones secreted by the placenta to maintain pregnancy are

A. hCG, hPL, estrogens, relaxin, oxytocin
B. hCG, hPL, progestogens, estrogens ✓
C. hCG, hPL, progestogens, prolactin
D. hCG, progestogens, estrogens, glucocorticoids

Answer: B. hCG, hPL, progestogens, estrogens
The placenta is an endocrine organ that secretes several hormones to maintain pregnancy: human chorionic gonadotropin (hCG), human placental lactogen (hPL), estrogens, and progestogens. Oxytocin is secreted by the posterior pituitary, prolactin by anterior pituitary, and glucocorticoids by the adrenal cortex — not by the placenta.

← Previous Chapter

Unit 5: Human Physiology

Next Chapter →

Unit 7: Genetics and Evolution