In This Post we are providing Chapter-1 Reproduction in Organism NCERT MCQ for Class 12 Biology which will be beneficial for students. These solutions are updated according to 2021-22 syllabus. These MCQS can be really helpful in the preparation of Board exams and will provide you with a brief knowledge of the chapter.
NCERT MCQ ON REPRODUCTION IN ORGANISM
Question 1: Offspring formed by sexual reproduction exhibit more variation than those formed by Asexual reproduction because
- a) gametes of parents have qualitatively different genetic composition
- b) gametes of parents have qualitatively different genetic composition
- c) greater amount of DNA is involved in sexual reproduction
- d) sexual reproduction is a lengthy process
Answer: gametes of parents have qualitatively different genetic composition
Question 2: The property of an undifferentiated cell that has the potential to develop into an entire plant is called
- a) Totipotency
- b) Sub potency
- c) Cloning
- d) Budding
Answer: Totipotency
Question 3: The development of root and shoot in tissue culture is determined by ______
- a) Auxin and cytokinin ratio
- b) None of the above
- c) Nutrients
- d) Temperature
Answer: Auxin and cytokinin ratio
Question 4: There is no natural death in single celled organisms like Amoeba and bacteria because
- a) parental body is distributed among the offspring
- b) they are microscopic
- c) they reproduce by binary fission
- d) they cannot reproduce sexually
Answer: parental body is distributed among the offspring
Question 5: There are various types of reproduction. The type of reproduction adopted by an organism depends on
- a) the organism’s habitat, physiology, and genetic makeup
- b) morphology and physiology of the organism
- c) morphology of the organism
- d) None of these
Answer: the organism’s habitat, physiology, and genetic makeup
Question 6: A few statements describing certain features of reproduction are given below:
i. Gametic fusion takes place
ii. Transfer of genetic material takes place
iii. Reduction division takes place
iv. Progeny have some resemblance with parents
Select the options that are true for both asexual and sexual reproduction from the options given below:
- a) ii and iv
- b) i and iii
- c) ii and iii
- d) i and ii
Answer: ii and iv
Question 7: Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because
- a) nodes have meristematic cells
- b) nodes have meristematic cells
- c) nodes have meristematic cells
- d) nodes are shorter than intenodes
Answer: nodes have meristematic cells
Question 8: Identify the correct sequence of events
- a) Gametogenesis → Syngamy → Zygote
- b) Gametogenesis → Embryogenesis → Zygote → Syngamy
- c) Gametogenesis → Zygote → Syngamy → Embryogenesis
- d) Gametogenesis → Syngamy Embryogenesis → Zygote
Answer: Gametogenesis → Syngamy → Zygote
Question 9: The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because
- a) Offspring do not possess exact copies of parental DNA
- b) DNA of only one parent is copied and passed on to the offspring
- c) Offspring are formed at different times
- d) NA of parent and offspring are completely different
Answer: Offspring do not possess exact copies of parental DNA
Question 10: Amoeba and Yeast reproduce asexually by fission and budding respectively, because they are
- a) Unicellular organisms
- b) Uninucleate organisms
- c) Heterotrophic organisms
- d) Microscopic organisms
Answer: Unicellular organisms
Question 11: A few statements with regard to sexual reproduction are given below:
i. Sexual reproduction does not always require two individuals
ii. Sexual reproduction generally involves gametic fusion
iii. Meiosis never occurs during sexual reproduction
iv. External fertilisation is a rule during sexual reproduction
Choose the correct statements from the options below:
- a) i and ii
- b) ii and iii
- c) i and iv
- d) i and iv
Answer: i and ii
Question 12: A multicellular, filamentous alga exhibits a type of sexual life cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has
- a) haploid vegetative cells and haploid gametangia
- b) diploid vegetative cells and haploid gametangia
- c) diploid vegetative cells and diploid gametangia
- d) haploid vegetative cells and diploid gametangia
Answer: haploid vegetative cells and haploid gametangia
Question 13: The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively,
- a) 12, 24, 24
- b) 24, 12, 24
- c) 24, 12, 12
- d) 12, 24, 12
Answer: 12, 24, 24
Question 14: Given below are a few statements related to external fertilization. Choose the correct statements.
i. The male and female gametes are formed and released simultaneously
ii. Only a few gametes are released into the medium
iii. Water is the medium in a majority of organisms exhibiting external fertilization
iv. Offspring formed as a result of external fertilization have better chance of survival than those formed inside an organism
- a) i and iii
- b) ii and iv
- c) i and iv
- d) iii and iv
Answer: i and iii
Question 15 : The statements given below describe certain features that are observed in the pistil of flowers.
i. Pistil may have many carpels
ii. Each carpel may have more than one ovule
iii. Each carpel has only one ovule
iv. Pistil have only one carpel
Choose the statements that are true from the options below:
- a) i and ii
- b) i and iii
- c) ii and iv
- d) iii and iv
Answer: i and ii
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