If Pyrimidines Could Bind to Other Pyrimidines, and Purines Could

question 198

Multiple Choice

If pyrimidines could bind to other pyrimidines, and purines could bind to other purines, what would be the effect on the DNA double helix?

• A) The width of the double helix would vary rather than being fixed.
• B) The phosphodiester bonds would be unable to form.
• C) There would be a reduced requirement for phosphates in nucleotides.
• D) The DNA backbone would be made of nucleosides.
• E) The sugar would have to be ribose instead of deoxyribose.

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