During the process shown above, the two strands of one dna molecule are unwound. then, dna polymerases add complementary nucleotides to each strand which results in the formation of two identical dna molecules. this process is known as dna transcription translation cloning replication

replication

Explanation:

the enzyme that unzips the DNA molicule is dna helicase

The process of DNA replication begins with one double-stranded molecule of DNA. The two strands of this molecule separate during replication, and DNA polymerases add complementary nucleotides to each strand. The end results of DNA replication are two identical DNA molecules.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: