Answer:
C)gene alterations in gametes.
Step-by-step explanation:
This is what is known as a mutation, which is defined as any change that is inheritable in the genome. These changes can be:
-At the level of genes: gene or specific
-At the level of chromosomes: change in the segment of a chromosome, an entire chromosome or even a complete set of chromosomes. Its possible causes can be:
-spontaneous: errors made by DNA polymerase during DNA replication.
- Induced by mutagenic agents: they react with DNA producing a structural change that affects one of the strands of the double helix.