Question

genetic mutations produce variation quick check
which evidence best supports the claim that mutations are a source of inheritable genetic variation? (1 point)
mutations affect protein synthesis which impacts the way traits are expressed.
mutations can only happen during meiosis because genes are inherited.
mutations affect the way dna is created through transcription.
mutations are not inheritable from gametes because they are given from each parent.

Explanation:

1. Analyze Option 1: Mutations change DNA, which affects protein synthesis (since proteins are related to trait expression). If the mutation is in germ cells (gametes), it can be inherited, and the change in protein synthesis leads to variation in traits. This connects mutations to inheritable genetic variation.
2. Analyze Option 2: Mutations can occur during DNA replication in mitosis (e.g., in somatic cells) or meiosis. So the statement "mutations can only happen during meiosis" is incorrect.
3. Analyze Option 3: Transcription is the process of making RNA from DNA, not creating DNA. Mutations affect DNA, and this option has a misunderstanding of the process, so it's incorrect.
4. Analyze Option 4: Mutations in gametes (sperm or egg cells) are inheritable because gametes pass genetic material to offspring. So the statement "mutations are not inheritable from gametes" is incorrect.

Answer:

A. Mutations affect protein synthesis which impacts the way traits are expressed.