THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DNA is more stable because its pentose sugar has a ____ on the 2’ carbon, unlike ribose.
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Hydrogen (H)
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Hydrogen ion (H+)
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Hydroxyl group (OH)
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Carboxyl group (COOH)
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Phosphate group (PO4)
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Explanation:
Detailed explanation-1: -Due to its deoxyribose sugar, which contains one less oxygen-containing hydroxyl group, DNA is a more stable molecule than RNA, which is useful for a molecule which has the task of keeping genetic information safe. RNA, containing a ribose sugar, is more reactive than DNA and is not stable in alkaline conditions.
Detailed explanation-2: -The more stable form of DNA helix is conformation.
Detailed explanation-3: -Ribose sugar has a hydroxyl (OH) group at position 2, whereas deoxyribose sugar has a hydrogen (H) atom at position 2. Due to this, deoxyribose sugar is more stable than ribose sugar.
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