I believe he is looking for an allele
An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosomes. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.
<span>phenotype, genotype is the answer for the question above hope this will help.</span>
Monosaccharides are made of carbon,hydrogen, and oxygen atoms
the answer is A. atherosclerosis because veins mess with nerve system and arterio does something with arteries