Reproduction Mock Tests

28 questions available

Reproduction Mock Test 1

Questions: 28

Sample Questions

NEET Biology

In angiosperms, if the meiocyte (megaspore mother cell) undergoing meiosis has 2n = 24 chromosomes, what are the chromosome numbers in the endosperm and the embryo, respectively?

A 36 and 24

B 24 and 36

C 12 and 24

D 24 and 12

NEET Biology

In a normal 28-day menstrual cycle, ovulation occurs on approximately which day?

A Day 5

B Day 14

C Day 21

D Day 28

NEET Biology

Which of the following hormones is NOT produced by the placenta during pregnancy?

A Prolactin

B Human chorionic gonadotropin (hCG)

C Human placental lactogen (hPL)

D Relaxin

NEET Biology

Double fertilization in flowering plants involves two separate fertilisation events. One event forms the zygote, and the other forms the endosperm. The secondary nucleus that fuses with a sperm cell to form the endosperm is:

A Haploid and derived from the pollen grain

B Diploid, formed by the fusion of two polar nuclei

C Triploid and derived from the synergids

D Tetraploid and derived from the antipodal cells

NEET Biology

During double fertilization in flowering plants, one sperm cell fuses with the egg to form the zygote, while the other sperm cell fuses with:

A The synergids to form the endosperm

B Two polar nuclei to form the primary endosperm nucleus (PEN)

C The nucellus to form the seed coat

D The antipodals to form the suspensor

NEET Biology

Which hormone is primarily responsible for initiating parturition (childbirth) in humans?

A Oxytocin

B Relaxin

C Progesterone

D Prolactin

NEET Biology

In a dicot seed, the endosperm is completely consumed during embryonic development, and the cotyledons become the food-storage tissue. Such seeds are called:

A Albuminous (endospermic) seeds

B Dicots cannot have cotyledon storage

C Exalbuminous (non-endospermic) seeds

D Perispermic seeds

NEET Biology

Which of the following statements about the endosperm in angiosperm seeds is CORRECT?

A Endosperm is always diploid and forms after fertilisation of the egg

B Endosperm is triploid and develops from the fusion of one sperm with two polar nuclei

C Endosperm is haploid and provides structural support to the embryo

D Endosperm is formed from the synergids of the embryo sac

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