GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Replication and Mutation
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Stability
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Express itself in the form of ‘Mendelian Characters’
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All of the above
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Detailed explanation-1: -Solution : The molecule should be able to undergo replication. Expressing itself in the form of Mendelian characters is also necessary. It will be able to act as the perfect genetic material only when its chemically and structurally stable. DNA fulfils all these criteria.
Detailed explanation-2: -The genetic material should be stable enough, not to change with different stages of life cycle, age or with change in physiology of the organism.
Detailed explanation-3: -The genetic material must have a stable structure and be able to replicate to make multiple copies. The genetic material must have a mechanism to mutate to generate variation among the population.
Detailed explanation-4: -Solution : (i) It should be able to generate its replica. <br>(ii) It Should be chemically and structurally stable. <br> (iii) It Should be able to express itself in the form of Mendelian characters. <br>(iv) It Should provide the scope for slow changes (mutations)that are necessary for evolution.
Detailed explanation-5: -Stability is not a property of genetic material.