Question

what is the difference between genetic variation and a mutation?
a. there is no difference - they are the same.
b. genetic variation happens in rna, while mutations happen in dna.
c. mutations are always harmful, while genetic variation can be beneficial.
d. mutation is due to changes in the dna sequence, while genetic variation is differences in the genes of individuals in a population.

Explanation:

• Option a: Genetic variation and mutation are not the same. Mutation is one of the sources of genetic variation.
• Option b: Both genetic variation (which can involve changes in DNA - related processes like recombination etc.) and mutations (changes in DNA sequence) are mainly related to DNA. RNA - related changes are not the main distinction here.
• Option c: Mutations are not always harmful. Some mutations can be neutral or even beneficial in certain environments. Genetic variation can have both positive and negative implications depending on the context.
• Option d: A mutation is a change in the DNA sequence (e.g., substitution, deletion, insertion). Genetic variation refers to the differences in genes (which are made of DNA) among individuals in a population. This option correctly differentiates the two terms.

Answer:

d. Mutation is due to changes in the DNA sequence, while genetic variation is differences in the genes of individuals in a population.