ANIMAL REPRODUCTION AND DEVELOPMENT
ASEXUAL REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Results in too much genetic variation in a population
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Requires less time
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Enables organisms to produce large amounts of offspring
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Results in little genetic variation within a population
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Requires less energy
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Detailed explanation-1: -In an unstable or unpredictable environment asexually-reproducing species may be at a disadvantage because all the offspring are genetically identical and may not have the genetic variation to survive in new or different conditions.
Detailed explanation-2: -The disadvantages of asexual reproduction include: it does not lead to variation in a population. the species may only be suited to one habitat. disease may affect all the individuals in a population.
Detailed explanation-3: -Hence, the correct answer is option B, ‘Lack of genetic variation’. Note:Asexual reproduction is less costly in terms of energy and time expenditure. Though asexual reproduction can occur in various types of environment, any type of change can lead to their destruction.
Detailed explanation-4: -Asexual reproduction involves a single parent and is hence not ideal for facilitating variations. Organisms raised are exact copies of their parents and are known as clones. Due to their identical set of chromosomes, they exhibit no or very little variations.