Chapter 11: Reproduction: How Life Continues — Online MCQ Test
SCIENCE · Grade 9 · CBSE(NCERT)
Practice Chapter 11: Reproduction: How Life Continues with a free chapter-wise online MCQ test.
This chapter covers: Reproduction Asexual Reproduction Sexual Reproduction Cell Division Gamete Fertilization Embryo Pollination Seed Formation Life Cycle Understanding reproductive processes heredity....
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Chapter 11: Reproduction: How Life Continues — Important Questions & Answers
Which of the following is an example of asexual reproduction?
- A. Binary fission in Amoeba
- B. Formation of gametes in humans
- C. Pollination in flowering plants
- D. Fertilization in frogs
Answer: A. Binary fission in Amoeba
Binary fission in Amoeba involves only one parent and does not require gamete fusion, so it is asexual reproduction.
Binary fission in Amoeba involves only one parent and does not require gamete fusion, so it is asexual reproduction.
The fusion of male and female gametes is called:
- A. Germination
- B. Fertilization
- C. Pollination
- D. Budding
Answer: B. Fertilization
Fertilization is the process in which male and female gametes unite to form a zygote.
Fertilization is the process in which male and female gametes unite to form a zygote.
Which of the following is NOT a method of asexual reproduction?
- A. Budding
- B. Fragmentation
- C. Vegetative propagation
- D. Pollination
Answer: D. Pollination
Pollination is the transfer of pollen grains and is a part of sexual reproduction in flowering plants.
Pollination is the transfer of pollen grains and is a part of sexual reproduction in flowering plants.
Which of the following best explains why sexual reproduction usually produces variations in offspring?
- A. Only one parent is involved
- B. Offspring are exact copies of the parent
- C. Gametes from two parents combine and genetic material mixes
- D. No cell division occurs before reproduction
Answer: C. Gametes from two parents combine and genetic material mixes
Sexual reproduction involves fusion of gametes from two parents, which mixes genetic material and creates variation.
Sexual reproduction involves fusion of gametes from two parents, which mixes genetic material and creates variation.
A student observes that in a flower, pollen grains have landed on the stigma, but a seed has not formed. Which is the most likely reason?
- A. Pollination occurred, but fertilization did not occur
- B. Fertilization occurred, but pollination did not occur
- C. The ovary always becomes a seed directly after pollination
- D. The zygote formed before pollination
Answer: A. Pollination occurred, but fertilization did not occur
Pollination is only the transfer of pollen to stigma; seed formation happens only after fertilization and subsequent development.
Pollination is only the transfer of pollen to stigma; seed formation happens only after fertilization and subsequent development.