Answer:
b) dumping used oil into street drains
Explanation:
epistatic gene
Explanation:
Some genes mask the expression of other genes just as a fully dominant allele masks the expression of its recessive counterpart. A gene that masks the phenotypic effect of another gene is called an epistatic gene; the gene it subordinates is the hypostatic gene.
Due to extreme (too much) cell division, a mutation of cells will occur and that is the cancer within humans.
