Which of the following is not a reason why an offspring looks different from its parents?

A. Random reorganisation of chromosome during gamete formation
B. Existence of multiple alleles in organisms
C. Formation of chasmata in chromatids during meiosis
D. A mutation which gives rise to a new combination of gene
E. Mitosis of the zygote produces a new combination of chromosomes

Correct Answer: Option D

D. A mutation which gives rise to a new combination of gene