NEET BIOLOGY

REPRODUCTION

REPRODUCTION IN ORGANISMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Little genetic variation
A
advantage of asexual reproduction
B
disadvantage of asexual reproduction
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -All the negative mutations persist for generations. Since only one organism is involved, the diversity among the organisms is limited. They are unable to adapt to the changing environment. A single change in the environment would eliminate the entire species.

Detailed explanation-2: -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-3: -Asexual species, on the other hand, do not have genetic variability like we do-each of their offspring has the exact same genetic makeup as their parent.

Detailed explanation-4: -Offsprings are identical to the parent genetically and morphologically. They are the exact copy or clone of the parent. There is no recombination of genetic material takes place in asexual reproduction. Hence, there is no variation or genetic variability seen in the individual produced by asexual reproduction.

Detailed explanation-5: -Advantages:Due to Variation, organism can be developed to survive in adverse conditions, more resistant to diseases, also it creates diversity. Disadvantages: It can also cause some undesired effects like genetic disorder, diseases, etc.

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