#1 Biology Class 12 - Reproduction in Organisms MCQ (NEET,MHTCET)
Reproduction in Organisms MCQ (NEET,MHTCET)
1) Meiosis takes place in
(a) gemmule
(b) megaspore
(c) meiocyte
(d) conidia
Answer
(c) meiocyte
2) Vegetative propagation in mint occurs by
(a) stolon
(b) offset
(c) runner
(d) sucker
Answer
(d) sucker
3) A few statements describing certain features of reproduction are given below. [NCERT Exemplar]
(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) (i) and (ii)
(b) (ii) and (iii)
(c) (ii) and (iv)
(d) (i) and (iii)
Answer
(c) (ii) and (iv)
4) The term ‘clone’ cannot be applied to offspring formed by sexual reproduction because [NCERT Exemplar]
(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) DNA of parent and offspring are completely different.
Answer
(a) offspring do not possess exact copies of parental DNA
5) Amoeba and yeast reproduce asexually by fission and budding respectively, because they are:
[NCERT Exemplar]
(a) microscopic organisms
(b) heterotrophic organisms
(c) unicellular organisms
(d) uninucleate organisms
Answer
(c) unicellular organisms
6) A few statements with regard to sexual reproduction are given below. [NCERT Exemplar]
(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 (iv)
(b) (i) and (ii)
(c) (ii) and (iii)
(d) (i) and (iv)
Answer
(b) (i) and (ii)
7) In Bryophyllum adventitious buds arise from
(a) leaves
(b) root
(c) stems
(d) flowers
Answer
(a) leaves
8) 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 [NCERT Exemplar]
(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.
Answer
(d) haploid vegetative cells and haploid gametangia.
9) 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 [NCERT Exemplar]
(a) 12, 24, 12
(b) 24, 12, 12
(c) 12, 24, 24
(d) 24, 12, 24.
Answer
(c) 12, 24, 24
10) Given below are a few statements related to external fertilisation. Choose the correct statements. [NCERT Exemplar]
(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 fertilisation.
(iv) Offspring formed as a result of external fertilisation have better chance of survival than those formed inside an organism.
(a) (iii) and (iv)
(b) (i) and (iii)
(c) (ii) and (iv)
(d) (i) and (iv)
Answer
(b) (i) and (iii)
11) The most common asexual reproductive structure of algae and fungi are
(a) agygospore
(b) zoospore
(c) buds
(d) conidia
Answer
(b) zoospore
12) The period of growth from birth till attainment of sexual maturity is called
(a) Asexual phase
(b) Immature phase
(c) Maturation phase
(d) Juvenile phase
Answer
(d) Juvenile phase
13) The statements given below describe certain features that are observed in the pistil of flowers. [NCERT Exemplar]
(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
(a) (i) and (ii)
14) Which of the following situations correctly describe the similarity between an angiosperm egg and a human egg? [NCERT Exemplar]
(i) Eggs of both are formed only once in a lifetime
(ii) Both the angiosperm egg and human egg are stationary
(iii) Both the angiosperm egg and human egg are mobile
(iv) Syngamy in both results in the formation of zygote
Choose the correct answer from the options given below.
(a) (ii) and (iv)
(b) (iv) only
(c) (iii) and (iv)
(d) (i) and (iv)
Answer
(b) (iv) only
15) Homothallism represents
(a) asexual condition
(b) unisexual condition
(c) bisexual condition
(d) none of these
Answer
(c) bisexual condition
16) Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because. [NCERT Exemplar]
(a) nodes are shorter than internodes
(b) nodes have meristematic cells
(c) nodes are located near the soil
(d) nodes have non-photosynthetic cells
Answer
(b) nodes have meristematic cells
17) Which of the following statements, support the view that elaborate sexual reproductive process appeared much later in the organic evolution. [NCERT Exemplar]
(i) Lower groups of organisms have simpler body design
(ii) Asexual reproduction is common in lower groups
(iii) Asexual reproduction is common in higher groups of organisms
(iv) The high incidence of sexual reproduction in angiosperms and vertebrates
Choose the correct answer from the options given below:
(a) (i) and (iii)
(b) (i) and (iii)
(c) (ii) and (iv)
(d) (ii) and (iii)
Answer
(c) (ii) and (iv)
18) Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because [NCERT Exemplar]
(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.
Answer
(b) gametes of parents have qualitatively different genetic composition
19) Choose the correct statement from amongst the following. [NCERT Exemplar]
(a) Dioecious (hermaphrodite) organisms are seen only in animals
(b) Dioecious organisms are seen only in plants
(c) Dioecious organisms are seen in both plants and animals
(d) Dioecious organisms are seen only in vertebrates
Answer
(c) Dioecious organisms are seen in both plants and animals
20) There is no natural death in single celled organisms like Amoeba and bacteria because [NCERT Exemplar]
(a) they cannot reproduce sexually
(b) they reproduce by binary fission
(c) parental body is distributed among the offspring
(d) they are microscopic
Answer
(c) parental body is distributed among the offspring
21) A gamete from a diploid parent is haploid, then from a haploid parent will be
(a) Ooploid
(b) Haploid
(c) 1/4n
(d) Tetraploid
Answer
(b) Haploid
22) During formation of zygote
(a) fertilisation of male gamete occurs
(b) fertilisation of both gametes occurs
(c) fertilisation of female gamete occurs
(d) either (a) or (c)
Answer
(c) fertilisation of female gamete occurs
23) There are various types of reproduction. The type of reproduction adopted by an organism depends on [NCERT Exemplar]
(a) the habitat and morphology of the organism
(b) morphology of the organism
(c) morphology and physiology of the organism
(d) the organism’s habitat, physiology and genetic makeup
Answer
(d) the organism’s habitat, physiology and genetic makeup
24) Identify the incorrect statement. [NCERT Exemplar]
(a) In asexual reproduction, the offspring produced are morphologically and genetically identical to the parent
(b) Zoospores are sexual reproductive structures
(c) In asexual reproduction, a single parent produces offspring with or without the formation of gametes
(d) Conidia are asexual structures in Penicillium
Answer
(b) Zoospores are sexual reproductive structures
25) Which of the following is a post-fertilisation event in flowering plants? [NCERT Exemplar]
(a) Transfer of pollen grains
(b) Embryo development
(c) Formation of flower
(d) Formation of pollen grains
Answer
(b) Embryo development
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