fertilization? Not totally sure what you're trying to ask here
Variables. An experiment generally tests how one variable is affected by another. The affected variable is called the dependent variable.
I think its D. but I'm not sure
The reason being is it's a prosses that doesn't require the "help" or "cooperation" of other cells and it only effects the one cell.
Answer:
The type of mutation that occurs when in the DNA strand there is a change from guanine to cytosine is a nonsense mutation, since the triplet that should encode the amino acid encodes a stop codon and the protein cannot be completely synthesized.
Explanation:
The nonsense mutation consists of a change in one of the bases of the stranded DNA, which is transcribed into an altered mRNA, producing a stop codon, instead of an amino acid.
In the table it is observed that the CCA codon is a stop codon that cuts off the protein synthesis prematurely, leaving it incomplete and probably non-functional.
Sometimes this type of mutation can alter the sequence of amino acids but the protein may be complete enough to partially fulfill its function.