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 can only happen during meiosis because genes are inherited
mutations affect protein synthesis which impacts the way traits are expressed
mutations are not inheritable from gametes because they are given from each parent
mutations affect the way dna is created through transcription

Explanation:

1. Analyze Option 1: Mutations can occur during DNA replication in any cell (somatic or germ - line), not just meiosis. So this statement is incorrect.
2. Analyze Option 2: Mutations change the DNA sequence. Since DNA contains the code for protein synthesis, changes in DNA (mutations) will affect how proteins are made. Proteins are responsible for expressing traits, and if the DNA (which is inherited) has a mutation, this change in trait expression can be passed on. This supports that mutations are a source of inheritable genetic variation.
3. Analyze Option 3: Mutations in gametes (sperm or egg cells) are inheritable because gametes pass on genetic material to offspring. So this statement is wrong.
4. Analyze Option 4: Transcription is the process of making RNA from DNA. Mutations are changes in DNA, and DNA is not "created" during transcription. So this statement is incorrect.

Answer:

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