Question: a double stranded segment of dna 750 nucleotides long each...
A double stranded segment of DNA 750 nucleotides long (each
strand) has a guanine content of 32%. The strands of this segment
of DNA can be separated by temperatures above 88.6oC. A second
double stranded segment of DNA that is also 750 nucleotides long
contains 44% guanine and undergoes strand separation at 94.5oC.
Which of the following explain why the two segments of DNA separate
at different temperatures:
A. adenine-guanine base pairs form two peptide bonds B. adenine-thymine base pairs form two covalent bonds C. cytosine-guanine base pairs form two peptide bonds D. cytosine-guanine base pairs form two hydrogen bonds E. adenine-thymine base pairs form three peptide bonds AB. cytosine-adenine base pairs form three hydrogen bonds AC. cytosine-guanine base pairs form three hydrogen bonds AD. adenine-guanine base pairs form three covalent bonds AE. cytosine-thymine base pairs form three ionic bonds BC. adenine-thymine base pairs form three ionic bonds BD. none of the above are correct
please explain why as well