Reproduction in Organisms MCQ Questions for Class 12 Biology Chapter 1 with Answers

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NCERT MCQ Chapters for Class 12 Biology

Q1. In which of the following plants, sepals do not fall off after fertilisation and remain attached to the fruit?

(A) Brinjal
(B) Cucumber
(C) Papaya
(D) Bitter gourd

(A) Brinjal

Q2. Meiosis does not occur in

(A) asexually reproducing diploid individuals
(B) sexually reproducing haploid individuals
(C) sexually reproducing diploid individuals
(D) all of these.

(A) asexually reproducing diploid individuals

Q3. There are various types of reproduction. The type of reproduction adopted by an organism depends on:

(A) The habitat and morphology of the organism
(B) Morphology of the organism
(C) Morphology and physiology of the organisms
(D) The organism’s habitat, physiology and genetic makeup

(D) The organism’s habitat, physiology and genetic makeup

Q4. Eye lens is formed from

(A) Ectoderm
(B) Mesoderm
(C) Endoderm
(D) Ectoderm and Mesoderm

(A) Ectoderm

Q5.Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because

(A) nodes are shorter than intemodes
(B) nodes have meristematic cells
(C) nodes are located near the soil
(D) nodes have non-photosynthetic cells.

(B) nodes have meristematic cells

Q6. Vegetative propagation in Pistia occurs by

(A) sucker
(B) offset
(C) runner
(D) rhizome

(B) offset

Q7. Syngamy can occur outside the body of the organism in:

(A) Fungi
(B) Mosses
(C) Algae
(D) Ferns

Q8. 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 diploid gametangia
(B) Diploid vegetative cells and diploid gametangia
(C) Diploid vegetative cells and haploid gametangia
(D) Haploid vegetative cells and haploid gametangia.

(D) Haploid vegetative cells and haploid gametangia.

Q9. In flowering plants, both male and female gametes are non-motile. The method to bring them together for fertilisation is

(A) water
(B) air
(C) pollination
(D) apomixis

Q10. Earthworm is:

(A) Unisexual
(B) Bisexual
(C) Asexual
(D) Neutral

(B) Bisexual

Q11. Budding is the example of :

(A) Vegetative reproduction
(B) Tissue culture
(C) Sexual production
(D) Dispersal

(A) Vegetative reproduction

Q12. Read the following statements and select the incorrect one.

(A) Cucurbits and coconuts are monoecious plants.
(B) Papayas and date palms are dioecious plants.
(C) Leeches and tapeworms are bisexual animals.
(D) Sponges and coelenterates are unisexual animals.

(D) Sponges and coelenterates are unisexual animals.

Q13. There is no natural death in single celled organisms like Amoeba and bacteria because:

(A) They cannot reproduce sexually
(B) They reproduce by binary fission
(C) Parental body is distributed among the offspring
(D) They are microscopic.

Q14. In grafting, the portion to be grafted on the main plant is called

(A) Stock
(B) Scion
(C) Stem
(D) Adventitious bud

(B) Scion

Q15. Offspring formed by sexual reproduction exhibit more variation than those formed by Asexual reproduction because

(A) sexual reproduction is a lengthy process
(B) gametes of parents have qualitatively different genetic composition
(C) genetic material comes from parents of two different species
(D) greater amount of DNA is involved in sexual reproduction.

(B) gametes of parents have qualitatively different genetic composition

Q16. External fertilisation occurs in majority of

(A) fungi
(B) liverworts
(C) algae
(D) mosses

Q17. Vegetative propagation in mint occurs by

(A) Sucker
(B) Rhizome
(C) Offset
(D) Runner

(A) Sucker

Q18. Amoeba and Yeast reproduce asexually by fission and budding respectively, because they are:

(A) Microscopic organisms
(B) Heterotrophic organisms
(C) Unicellular organisms
(D) Uninucleate organisms.

Q19. If a butterfly has chromosome number 360 in its meiocyte (2n). What will be the chromosome number in its gametes?

(A) 380
(B) 190
(C) 95
(D) 760

(B) 190

Q20. In higher plants, meiosis occurs?

(A) During formation of gametes
(B) During fertilization
(C) During embryogenesis
(D) In seeds

(A) During formation of gametes

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