Hello the correct answer would be D When a molecule of double-stranded DNA undergoes replication, it results i a two double-stranded DNA molecules, each composed of one and one old strand. trust me I had this last semester and finished with an A-
cloudiness rain and animals brudda.
To the heart: pulmonary vein
Away from heart: pulmonary artery
A cancer causing gene is caused by a mutation in a gene.
