The ratio of guanine-cytosine (G-C) pairs to adenine- thymine (A-T) pairs is use

Question

The ratio of guanine-cytosine (G-C) pairs to adenine- thymine (A-T) pairs is useful in laboratory manipulation of double-stranded DNA. If a segment of DNA has a low G-C: A-T ratio, it would be reasonable to assume that this segment would: A. contain more guanine than cytosine. B. contain more adenine than thymine. C. require more energy to separate the two DNA strands than would a comparable segment of DNA having a high G-C: A-T ratio. D. require less energy to separate the two DNA strands than would a comparable segment of DNA having a high G-C: A-T ratio. Which of the following is the most accurate, from least organized to most organized? A. Deoxyribose, nucleotide, nucleoside, DNA helix, nucleosome, chromatin B. Deoxyribose, nucleoside, nucleotide, DNA helix, chromatin, nucleosome C. Deoxyribose, nucleoside, nucleotide, DNA helix, nucleosome, chromatin D. Deoxyribose, nucleotide, nucleoside, nucleosome, DNA helix, chromatin

Explanation / Answer

1d.High GC content makes the DNA more stable and low GC content makes it more vulnerable for any attack.

2.c.Chromatin is the most organized structure of DNA.

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