The answer is letter A. substitution of 3rd N-base to go
from AUU to AUC. Substitution mutations are a type of mutation in which a
single nucleotide is substituted with a different nucleotide. There are many
different ways that DNA can be changed, resulting in different types of
mutation; this are the type of mutations Substitution, Insertion, Deletion, Frameshift.
The answer is aneuploidy. This is the result of a malfunction in the process of meiosis that
produces gametes, in the male. The is caused by
a failure in non-disjunction hence an
extra Y chromosome occurs in one of the
formed gamete cells during anaphase II.
