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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2 nucleotide strands
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1 nucleotide strand
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code for proteins embedded in its structure
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makes copies of proteins
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Thymine
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Detailed explanation-1: -Adenine and guanine are found in RNA and DNA in terrestrial life, whereas thymine is only found in DNA and uracil only in RNA.
Detailed explanation-2: -Thymine helps stabilize nucleic acid structures. DNA is composed of two strands that twist upon each other to form a double helix. This double helix is held together by hydrogen bonds formed between nucleobases oriented in opposite strands. Adenine forms 2 hydrogen bonds with thymine.
Detailed explanation-3: -DNA contains four basic building blocks or ‘bases?’: adenine? (A), cytosine? (C), guanine? (G) and thymine? (T). The order, or sequence, of these bases form the instructions in the genome. DNA is a two-stranded molecule. DNA has a unique ‘double helix’ shape, like a twisted ladder.