DNA Structure and Replication
Which will require a higher temperature to denature?

DNA with a high A-T content
RNA with a high G-C content
RNA with a high A-T content
DNA with a high G-C content

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DNA Structure and Replication
In DNA, there are

only two bases known as adenine and cytosine
three bases known as adenine, guanine and cytosine
five bases known as adenine, guanine, thymine, tryptophan and cytosine
four bases known as adenine, guanine, thymine and cytosine

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DNA Structure and Replication
In DNA, nucleotides are covalently joined together by

2', 3' phosphodiester bonds to form a repetitive sugar-phosphate chain
2', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain
3', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain
3', 4' phosphodiester bonds to form a repetitive sugar-phosphate chain

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DNA Structure and Replication
In a typical electrophoresis experiment, larger fragments of DNA move more

quickly, so they appear nearer the top of a gel photograph
slowly, so they appear nearer the top of a gel photograph
slowly, so they appear nearer the bottom of a gel photograph
quickly, so they appear nearer the bottom of a gel photograph

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