Answer:
C
Explanation:
The helix has to unwind before separating. Once it's separated, then new bases can be added. Once the bases are added, the separate strands wind into helices.
Unbalanced,
Na + Cl2
Na = 1
Cl = 2
NaCl
Na = 1
Cl = 1
Basically, both the reactants and products must have equal amounts of each element.
I am going with x-rays; it is the most visible to the naked eye out of all the choices.
If the original strand is TACGGTACCGGA, the complementary strains is ATGCCATGGCCT
Answer:
A. The tails do not interact with the DNA
Explanation:
The acetylation refers to the transfer of the acetyl group from Acetyl-CoA to the N-terminal of the histone protein.
Lysine residues (positively charged amino acid) are present at the end of the N-terminal of the histone protein which is neutralized by the acetyl group.
This loses the compaction between the positively charged histone and the negatively charged DNA and the DNA becomes more relaxed. This relaxed state allows the transcription factors to easily bind the DNA and therefore the DNA becomes transcriptionally active.
Thus, Option-A is correct
