Consider a sex-linked inherited disease like hemophilia. Males are never hidden carriers of this type of inherited disease. Why?
A) Males only inherit the gene for the disease from their mothers. B) Males cannot inherit the normal, disease-free gene from either parent. C) Males do not have a second X chromosome that could mask the gene for hemophilia. D) The Y chromosome found in males is a recessive chromosome and cannot carry the dominant gene for hemophilia.
A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. ... Acquired mutations in somatic cells (cells other than sperm and egg cells) cannot be passed to the next generation.
