A child is born with two more codons than those found in the DNA of their parents. How could this genetic difference have happened?

A
insertion - an error occurs during DNA replication
B
insertion - an error occurs during the process of meiosis
Answered Incorrectly
C
substitution - an error occurs during DNA replication
D
substitution - an error occurs during the process of meiosis

insertion and error occurs during the process meiosis.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.