Question

which statement is scientifically based?
mutations rarely occur.
all mutations are harmful.
some mutations can be contagious, like infections.
mutations are not passed from parent to offspring.

Explanation:

• Mutations are rare events as DNA replication mechanisms have proof - reading and repair systems.
• Not all mutations are harmful; some can be neutral or even beneficial (e.g., in the context of evolution).
• Mutations are changes in the DNA sequence of an organism's genome and are not contagious like infections (which are caused by pathogens).
• Mutations can be passed from parent to offspring if they occur in germ - line cells (cells that give rise to gametes).

Answer:

Mutations rarely occur.