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!
Answer: B) the organelle is removed by lysosomes
Re: A car driver automatically brakes if a child dashes across the road.
<span>This is called a .............................................. reaction.
answer: reflex</span>
The G1 phase is a period in the cell cycle during interphase that happens after cytokinesis.
