Asexual, Plant and Human Reproduction

Attempt the quiz above first, then review every question with its correct answer and a short explanation below.

1. Q1.The male gamete in humans is the:

   • A.ovum
   • B.sperm✓ Correct Answer
   • C.zygote
   • D.embryo

   Explanation: Sperms are produced in the testes.

2. Q2.The female gamete in humans is the:

   • A.ovum✓ Correct Answer
   • B.sperm
   • C.zygote
   • D.foetus

   Explanation: It is produced in the ovary.

3. Q3.Amoeba reproduces by:

   • A.budding
   • B.spore formation
   • C.fragmentation only
   • D.binary fission✓ Correct Answer

   Explanation: The parent cell divides into two equal daughter cells.

4. Q4.Yeast reproduces mainly by:

   • A.binary fission
   • B.pollination
   • C.seed formation
   • D.budding✓ Correct Answer

   Explanation: A small bud grows out and detaches.

5. Q5.The reproductive organ of a flowering plant is the:

   • A.root
   • B.flower✓ Correct Answer
   • C.stem
   • D.leaf

   Explanation: It bears stamens and carpels.

6. Q6.The fusion of a male and female gamete is called:

   • A.pollination
   • B.germination
   • C.ovulation
   • D.fertilisation✓ Correct Answer

   Explanation: It forms the zygote.

7. Q7.Pollination is the transfer of pollen grains from the anther to the:

   • A.ovule
   • B.root
   • C.stigma✓ Correct Answer
   • D.petal

   Explanation: The stigma is the receptive tip of the carpel.

8. Q8.In humans, fertilisation normally occurs in the:

   • A.uterus
   • B.vagina
   • C.fallopian tube (oviduct)✓ Correct Answer
   • D.ovary

   Explanation: The zygote then moves to the uterus.

9. Q9.The normal period of human pregnancy is about:

   • A.9 months (about 40 weeks)✓ Correct Answer
   • B.3 months
   • C.6 months
   • D.12 months

   Explanation: It is counted from the last menstrual period.

10. Q10.Growing a new plant from a cutting of a rose stem is an example of:

    • A.sexual reproduction
    • B.fertilisation
    • C.pollination
    • D.vegetative propagation✓ Correct Answer

    Explanation: No seeds or gametes are involved.

11. Q11.Bread mould (Rhizopus) reproduces by:

    • A.binary fission
    • B.spore formation✓ Correct Answer
    • C.budding
    • D.regeneration

    Explanation: Sporangia release tiny spores.

12. Q12.The male sex hormone produced by the testes is:

    • A.testosterone✓ Correct Answer
    • B.oestrogen
    • C.progesterone
    • D.insulin

    Explanation: It controls male secondary sexual characters.

13. Q13.The structure through which the embryo gets nourishment from the mother is the:

    • A.amnion
    • B.cervix
    • C.ovary
    • D.placenta✓ Correct Answer

    Explanation: It also removes the embryo's wastes.

14. Q14.The average length of the human menstrual cycle is about:

    • A.7 days
    • B.14 days
    • C.28 days✓ Correct Answer
    • D.60 days

    Explanation: Ovulation occurs around the middle of the cycle.

15. Q15.Planaria can regrow lost body parts by:

    • A.pollination
    • B.regeneration✓ Correct Answer
    • C.binary fission only
    • D.fertilisation

    Explanation: Hydra also shows regeneration.

16. Q16.After fertilisation in a flower, the ovary develops into the:

    • A.seed
    • B.petal
    • C.fruit✓ Correct Answer
    • D.stigma

    Explanation: The ovules develop into seeds.

17. Q17.The zygote formed after fertilisation is:

    • A.diploid✓ Correct Answer
    • B.haploid
    • C.triploid
    • D.monoploid

    Explanation: It has the full set of 46 chromosomes in humans.

18. Q18.The technique commonly known as "test-tube baby" is:

    • A.artificial respiration
    • B.cloning of cells
    • C.in vitro fertilisation (IVF)✓ Correct Answer
    • D.vegetative propagation

    Explanation: Fertilisation occurs outside the body and the embryo is implanted.

19. Q19.Gametes are produced by the type of cell division called:

    • A.mitosis
    • B.meiosis✓ Correct Answer
    • C.binary fission
    • D.budding

    Explanation: Meiosis halves the chromosome number.

20. Q20.Dandelion fruits are dispersed mainly by:

    • A.wind✓ Correct Answer
    • B.water
    • C.animals
    • D.explosion

    Explanation: Their hairy pappus acts like a parachute.