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he stability of DNA is affected by the number of hydrogen bonds, with more bonds promoting more stability. The double-stranded DNA molecule you would expect to have the greatest stability would be one
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Mar 26, 2021
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he stability of DNA is affected by the number of hydrogen bonds, with more bonds promoting more stability. The double-stranded DNA molecule you would expect to have the greatest stability would be one with _____% _____.
Biology
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Answer:
Ideally, the answer is
100% GC content
, but this percentage is not observed in any living organism.
GC content in living organisms can be less than 30% or more than 80%.
The DNA having greater than
80% GC content
is considered to be stable.
Step-by-step explanation:
The stability of a double -stranded DNA molecule depends on the
number of hydrogen bonds
present in between the double helix.
Hydrogen bonds are formed between the
purine (A,G)
and
pyrimidine (T,C)
nitrogenous bases.
Adenine (A) and Thymine (T) -
two
hydrogen bonds.
Guanine (G) and Cytosine (C) -
three
hydrogen bonds.
So the DNA double helix having
more GC content
will have more hydrogen bonds and hence would be
more stable.
The GC content in a DNA molecule is determined by the ratio of the number of
GC bonds
present in the DNA to the total number of bonds
(AT and GC)
present.
DNA with
more
than
80% GC
content is most
stable.
Ozooxo
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Apr 1, 2021
by
Ozooxo
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