Question

Mutations that develop suddenly in nature are

• A. Spontaneous
• B. Induced
• C. Gene mutations
• D. Chromosomal mutations

Answer 1

Answer: (A)

Spontaneous

• Spontaneous mutations are naturally occurring, arising from a variety of sources, including errors in DNA replication, spontaneous lesions, and transposable genetic elements.
• Mutations can be induced in a variety of ways, such as by exposure to ultraviolet or ionizing radiation or chemical mutagens.

So, the correct answer is 'Spontaneous'.