what does the notation rr mean to geneticists?
a-heterozygous allelesb-homozygous allelesc-dominant allelesd-recessive alleles

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

What field of science did harry hess study?

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?