{"id":18158,"date":"2021-02-06T18:13:48","date_gmt":"2021-02-06T12:43:48","guid":{"rendered":"https:\/\/ncertsolutions.guru\/?p=18158"},"modified":"2021-02-08T10:30:36","modified_gmt":"2021-02-08T05:00:36","slug":"mcq-questions-for-class-12-biology-chapter-1","status":"publish","type":"post","link":"https:\/\/ncertsolutions.guru\/mcq-questions-for-class-12-biology-chapter-1\/","title":{"rendered":"MCQ Questions for Class 12 Biology Chapter 1 Reproduction in Organisms with Answers"},"content":{"rendered":"

Students are advised to practice the NCERT MCQ Questions for Class 12 Biology Chapter 1 Reproduction in Organisms with Answers Pdf free download is available here. MCQ Questions for Class 12 Biology with Answers<\/a> are prepared as per the Latest Exam Pattern. Students can solve these Reproduction in Organisms Class 12 MCQs Questions with Answers and assess their preparation level.<\/p>\n

Reproduction in Organisms Class 12 MCQs Questions with Answers<\/h2>\n

Solving the Reproduction in Organisms Multiple Choice Questions of Class 12 Biology Chapter 1 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Reproduction in Organisms Class 12 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 1 Biology Class 12 and cross-check your answers during preparation.<\/p>\n

Select the correct answer<\/span><\/p>\n

Question 1.
\nA few statements describing certain features of reproduction are given below:
\n(i) Gametic fusion takes place
\n(ii) Transfer of genetic material takes place
\n(iii) Reduction division takes place
\n(iv) Progeny have some resemblance with parents
\nSelect the options that are true for both asexual and sexual reproduction from the options given below:
\n(a) i and iii
\n(b) ii and iii
\n(c) ii and iv
\n(d) i and iii<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) ii and iv<\/p>\n<\/details>\n

\n

Question 2.
\nThe term \u2018clone\u2019 cannot be applied to offspring formed by sexual reproduction because:
\n(a) Offspring do not possess exact copies of parental DNA.
\n(b) DNA of only one parent is copied and passed on to the offspring.
\n(c) Offspring are formed at different times
\n(d) DNA of parent and DNA of offspring are completely different.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (a) Offspring do not possess exact copies of parental DNA.<\/p>\n<\/details>\n

\n

Question 3.
\nAmoeba and Yeast reproduce asexually by fission and budding respectively, because they are:
\n(a) Microscopic organisms
\n(b) Heterotrophic organisms
\n(c) Unicellular organisms
\n(d) Uninucleate organisms.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) Unicellular organisms<\/p>\n<\/details>\n

\n

Question 4.
\nA few statements with regard to sexual reproduction are given below:
\n(i) Sexual reproduction does not always require two individuals.
\n(ii) Sexual reproduction generally involves gametic fusion.
\n(iii) Meiosis never occurs during sexual reproduction
\n(Iv) External fertilisation is a rule during sexual reproduction.
\nChoose the correct statements from the options below:
\n(a) i and iv
\n(b) i and ii
\n(c) ii and iii
\n(d) i and iv<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) i and ii<\/p>\n<\/details>\n

\n

Question 5.
\nA 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
\n(a) Haploid vegetative cells and diploid gametangia
\n(b) Diploid vegetative cells and diploid gametangia
\n(c) Diploid vegetative cells and haploid gametangia
\n(d) Haploid vegetative cells and haploid gametangia.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (d) Haploid vegetative cells and haploid gametangia.<\/p>\n<\/details>\n

\n

Question 6.
\nThe 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
\n(a) 12, 24, 12
\n(b) 24, 12, 12
\n(c) 12, 24, 24
\n(d) 24, 12, 24<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) 12, 24, 24<\/p>\n<\/details>\n

\n

Question 7.
\nGiven below are a few statements related to external fertilisation. Choose the correct statements.
\n(i) The male and female gametes are formed and released simultaneously.
\n(ii) Only a few gametes are released into the medium.
\n(iii) Water is the medium in a majority of organisms exhibiting external fertilisation.
\n(iv) Offspring formed as a result of external fertilisation have better chance of survival than those formed inside an organism.
\n(a) iii and iv
\n(b) i and iii
\n(c) ii and iv
\n(d) i and iv<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) i and iii<\/p>\n<\/details>\n

\n

Question 8.
\nThe statements given below describe certain features that are observed in the pistil of flowers.
\n(i) Pistil may have many carpels
\n(ii) Each carpel may have more than one ovule
\n(iii) Each carpel has only one ovule
\n(iv) Pistil has only one carprel
\nChoose the statements that are true from the options below:
\n(a) i and ii
\n(b) i and iii
\n(c) ii and iv
\n(d) iii and iv<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (a) i and ii<\/p>\n<\/details>\n

\n

Question 9.
\nWhich of the following situations correctly describe the similarity between an angiosperm egg and a human egg?
\n(i) Eggs of both are formed only once in a lifetime
\n(ii) Both the angiosperm egg and human egg are stationary
\n(iii) Both the angiosperm egg and human egg are motile.
\n(iv) Syngamy in both results in the formation of zygote
\nChoose the correct answer from the options given below:
\n(a) ii and iv
\n(b) iv only
\n(c) iii and iv
\n(d) i and iv<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) iv only<\/p>\n<\/details>\n

\n

Question 10.
\nAppearance of vegetative propagules from the nodes of plants such as surgarcane and ginger is mainly because:
\n(a) Nodes are shorter than internodes
\n(b) Nodes have meristematic cells
\n(c) Nodes are located near the soil
\n(d) Nodes have non-photosynthetic cells<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) Nodes have meristematic cells<\/p>\n<\/details>\n

\n

Question 11.
\nWhich of the following statements supports the view that elaborate sexual reproductive process appeared much later in the organic evolution?
\n(i) Lower groups of organisms have simpler body design
\n(ii) Asexual reproduction is common in lower groups
\n(iii) Asexual reproduction is common in higher groups of organisms
\n(iv) There is high incidence of sexual reproduction in angiosperms and vertebrates.
\nChoose the correct answer from the options given below:
\n(a) i and ii
\n(b) i and iii
\n(c) ii and iv
\n(d) ii and iii<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) ii and iv<\/p>\n<\/details>\n

\n

Question 12.
\nOffspring formed by sexual reproduction exhibit more variations than those formed by asexual reproduction because:
\n(a) Sexual reproduction is a lengthy process
\n(b) Gametes of parents have qualitatively different genetic composition
\n(c) Genetic material comes from parents of two different species
\n(d) Greater amount of DNA is involved in sexual reproduction.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) Gametes of parents have qualitatively different genetic composition<\/p>\n<\/details>\n

\n

Question 13.
\nChoose the correct statement from amongst the following:
\n(a) Dioecious (hermaphrodite) organisms are seen only in animals
\n(b) Dioecious organisms are seen only in plants
\n(c) Dioecious organisms are seen in both plants and animals
\n(d) Dioecious organisms are seen only in vertebrates.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) Dioecious organisms are seen in both plants and animals<\/p>\n<\/details>\n

\n

Question 14.
\nThere is no natural death in single celled organisms like Amoeba and bacteria because:
\n(a) They cannot reproduce sexually
\n(b) They reproduce by binary fission
\n(c) Parental body is distributed among the offspring
\n(d) They are microscopic.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) Parental body is distributed among the offspring<\/p>\n<\/details>\n

\n

Question 15.
\nThere are various types of reproduction. The type of reproduction adopted by an organism depends on:
\n(a) The habitat and morphology of the organism
\n(b) Morphology of the organism
\n(c) Morphology and physiology of the organisms
\n(d) The organism\u2019s habitat, physiology and genetic makeup<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (d) The organism\u2019s habitat, physiology and genetic makeup<\/p>\n<\/details>\n

\n

Question 16.
\nIdentify the incorrect statement.
\n(a) In asexual reproduction, the offspring produced are morphologically and genetically identical to the parent
\n(b) Zoospores are sexual reproductive structures
\n(c) In asexual reproduction, a single parent produces offspring with or without the formation of gametes
\n(d) Conidia are asexual structures in Penicillium<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) Zoospores are sexual reproductive structures<\/p>\n<\/details>\n

\n

Question 17.
\nWhich of the following is a postfertilisation event in flowering plants?
\n(a) Transfer of pollen grains
\n(b) Embryo development
\n(c) Formation of flower
\n(d) Formation of pollen grains<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) Embryo development<\/p>\n<\/details>\n

\n

Question 18.
\nThe number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the microspore mother cells of the same plant shall be :
\n(a) 20
\n(b) 10
\n(c) 40
\n(d) 15<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (a) 20<\/p>\n<\/details>\n

\n

Assertion and Reason Type Questions<\/span><\/p>\n

These questions consist of two statements each, printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses.
\n(a) If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
\n(b) If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
\n(c) If Assertion is true but the Reason is false.
\n(d) If both Assertion and Reason are false.
\nQuestion 19.
\nAssertion: Sexual reproduction is
\nadvantageous than asexual reproduction. Reason: Sexual reproduction is rapid mode of reproduction, while asexual reproduction is slow mode of reproduction.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) If Assertion is true but the Reason is false.<\/p>\n<\/details>\n

\n

Question 20.
\nAssertion: Individuals produced by asexual reproduction are genetically similar to parents.
\nReason: Asexual reproduction involves only mitotic divisions.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (a) If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.<\/p>\n<\/details>\n

\n

Question 21.
\nAssertion: Stigma of pistil receives the pollen during pollination.
\nReason: Pollen grains are produced in ovary of gynoecium.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) If Assertion is true but the Reason is false.<\/p>\n<\/details>\n

\n

Question 22.
\nAssertion: In wheat and sugarcane, pollination takes place by water.
\nReason: Water is not required for irrigation of wheat and sugarcane.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (d) If both Assertion and Reason are false.<\/p>\n<\/details>\n

\n

Question 23.
\nAssertion: Continued self-pollination generation after generation results in pure line formation.
\nReason: By continued self-pollination, plant becomes pure or homozygous for its characters.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (a) If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.<\/p>\n<\/details>\n

\n

Question 24.
\nAssertion: Many single-celled organisms reproduce by binary fission.
\nReason: In binary fission a cell divides into two halves and each rapidly grows into an adult.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.<\/p>\n<\/details>\n

\n

Question 25.
\nAssertion: In viviparous animals, the zygote develops into a young one inside the body of the female organism.
\nReason: Because of proper embryonic care and protection, the chances of survival of young ones are greater in viviparous organisms.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.<\/p>\n<\/details>\n

\n

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Students are advised to practice the NCERT MCQ Questions for Class 12 Biology Chapter 1 Reproduction in Organisms with Answers Pdf free download is available here. MCQ Questions for Class 12 Biology with Answers are prepared as per the Latest Exam Pattern. Students can solve these Reproduction in Organisms Class 12 MCQs Questions with Answers …<\/p>\n

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