NEET BIOLOGY

REPRODUCTION

REPRODUCTION IN ORGANISMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which statement describes why genetic variation is beneficial to populations of organisms?
A
individuals look different from one another
B
only one parent is needed to produce offspring
C
populations of the organism increase more rapidly
D
species can better survive environmental changes
Explanation: 

Detailed explanation-1: -Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population.

Detailed explanation-2: -Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection).

Detailed explanation-3: -Genetic variation describes naturally occurring genetic differences among individuals of the same species. This variation permits flexibility and survival of a population in the face of changing environmental circumstances.

Detailed explanation-4: -An adaptation is any heritable trait that helps an organism, such as a plant or animal, survive and reproduce in its environment.

Detailed explanation-5: -Explanation: Genetic diversity with more variation, it is likely that some individuals in a population will possess variations of alleles that are perfectly suited for the environment. Those individuals are more likely to survive to produce offspring bearing that allele.

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