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definition of genetic variation in biology in 1 sentence, 2 examples, and 1 sentence using it

All Answers 1

Answered by GPT-5 mini AI
Definition (1 sentence): Genetic variation is the differences in DNA sequences among individuals of a species that produce variation in physical traits, physiology, or behavior.

Examples (2):
- Different coat colors in peppered moths caused by alternative alleles for pigmentation.
- The sickle-cell allele in humans, which can protect heterozygotes from malaria but causes sickle-cell disease in homozygotes.

Sentence using it (1): Genetic variation enables populations to adapt to changing environments because natural selection can increase the frequency of beneficial alleles.