OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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amino acids and sugars
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nucleotide bases, including thymine
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nucleotide bases, including uracil
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sugar-phosphate molecules
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Detailed explanation-1: -Nucleotides are arranged in two long strands that form a spiral called a double helix. The structure of the double helix is somewhat like a ladder, with the base pairs forming the ladder’s rungs and the sugar and phosphate molecules forming the vertical sidepieces of the ladder.
Detailed explanation-2: -Answer and Explanation: The sides of the DNA ladder are made of sugar-phosphate groups. The sides are also known as the backbone, and they help form the structure of the DNA, which is a double helix.
Detailed explanation-3: -So, DNA is like a twisted ladder, where the sugar and phosphate are the rails, and the base pairs are the rungs. The rails run in opposite orientation to each other. The nucleotide rungs are complementary to each other. Wherever there is an A on one strand, there is a T in the same position on the other strand.