Answer:
because it can change in an instant
Explanation:
Answer:
Males are XY(have one X chromosome) so, when it comes to X linked diseases, they express everything that is on that chromosome. They only need one copy. Females need 2 copies of the recessive allele in order to have the same condition.
The lining attached to the lungs is called the visceral pleurae.
A mutation is a change in a gene