Question

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

Explanation:

1. Analyze the first option: Mutations in gametes (sex cells) are inheritable, and this option's statement is incorrect as it claims mutations from gametes are not inheritable.
2. Analyze the second option: Mutations can occur at any time, not just during meiosis (e.g., somatic mutations, mutations during DNA replication in mitosis), so this is incorrect.
3. Analyze the third option: Mutations are changes in DNA, and transcription is the process of making RNA from DNA. Mutations don't affect "how DNA is created" (DNA replication is for DNA creation), so this is incorrect.
4. Analyze the fourth option: Mutations change the DNA sequence, which affects protein synthesis (since DNA codes for proteins). Proteins are involved in expressing traits, so if mutations affect protein synthesis, they impact trait expression, and inheritable mutations (in gametes) pass these changes to offspring, supporting that mutations are a source of inheritable genetic variation.

Answer:

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