Answer:
DNA mutation causes genetic variation by altering the genes of individuals in a population. Gene flow leads to genetic variation as new individuals with different gene combinations migrate into a population.
The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism’s DNA that create diversity within a population by introducing new alleles.
Answer:
o2
Explanation:
Oxygen expelled by plants enters the air to be inhaled by animals and aerobic bacteria. Animal cells use oxygen for a process called oxidation.
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When a phage comes in contact with a bacterial host, it attaches itself to the receptors at the outside surface of the cell. Once secured, the phage injects its DNA or RNA inside the cell through endocytosis. Once inside, the host will change according to the DNA or RNA injected.