An individual is heterozygous for a gene if: select one: a. the mother is heterozygous for the gene. b. none of the other answer options is correct. c. the father is heterozygous for the gene. d. they developed from a sperm and an egg that carried the same allele. e. they developed from a sperm and an egg that carried different alleles.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

and after water is usually warmed by the sun the water temperature raises and then evaporates .