This question is very good
Answer:
photolysis
Explanation:
it happens when the uv radiaiton of sunlight breaks apart the oxygen containg molecules.
Answer:
The X and Y sex chromosomes
Explanation:
A.) ethical is a concern raised
Changes in the dna are called mutations. They can occur spontaneously. Mutations can only be passed down in gametes--sperm and egg cells. with Darwins theory at mind a mutation needs to pass the test of natural selection to remain in the gene pool. So purposly making mutation or altercations may end in diseases/illnesses or in some cases death because they body can not take it.....hope this helps if it doesnt im sorry!
