The answer is adenine.
The nitrogenous base pairings are always adenine with thymine and cytosine with guanine.
I remember this as
· the two round letters (C and G) pair together
· the two straight-edged letters (A and T) pair together
Hopefully that helps.
C
A community is a group of animals that coexist in the same environment
Oxygen's valence, based on the Number of valence electrons or outermost electrons that oxygen has would be 6.
Capillaries are the end structures in the artery system that bring oxygenated blood from your lungs to the rest of your body.
Answer: <u>Unwind
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Explanation: Transcription is a process where a DNA strand is used to make a copy of mRNA. A complementary mRNA strand is made from the DNA strand. This mRNA is then later used to make proteins. In this process the junk information, present in DNA in form of introns is also spliced.
DNA is a double stranded structure, which is present in helical structure and both the strands are twisted together. In order to make the mRNA copy with the help of the enzyme RNA polymerase, DNA must open up. Then only RNA polymerase will be able to access the nucleotides of DNA.