info on the safety aspect of unnatural ingredients and how safe it is to take. For example, some people are allergic to certain flavourings and therefore must avoid it, while people with high blood pressure and heart problems must reduce their salt intake.​

a) adding base pairs

c) unwinding the helix

there are possible two correct answers for this question.

dna polymerase doesn’t add base pairs, it adds single nucleotides which are complentar to coding strand . also dna polymerase can’t unwind the dna helix alone. dna helicase can do that, using energy derived from atp hydrolysis.

dna polymerase are enzymes that synthesize dna molecules from deoxyribonucleotides. these enzymes replicate the dna strand and create two identical dna strands from a single original dna molecule. some of dna polymerases have a function of correcting erros which are made during replication and this process is called proofreading. if the dna polymerase detects that incorrectly paired nucleotide has been added, it will remove and replace the wrong nucleotide.

a clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. when the sun sets we see red and orange colors because the blue light has scattered and away of the sight of

explanation: