When do chromosomal mutations usually appear? a suddenly, as a result of a mistake in mitosis or meiosis b gradually, in response to abnormal environmental conditions c as a result of certain diseases d when organisms reproduce asexually

Answer 1

Chromosomal mutations typically appear a) suddenly, as a result of a mistake in mitosis or meiosis. These mutations can occur due to errors during cell division, leading to changes in chromosome number or structure, which usually happens suddenly rather than gradually or specifically due to the environment or diseases.