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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Which strand of DNA would pair with 5’-GATCT-3’
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5’-CTAGA-3’
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5’-CUAGA-3’
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5’-AGATC-3’
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5’-TCTAG-3’
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Explanation:
Detailed explanation-1: -DNA is always synthesized in the 5’-to-3’ direction, meaning that nucleotides are added only to the 3’ end of the growing strand. As shown in Figure 2, the 5’-phosphate group of the new nucleotide binds to the 3’-OH group of the last nucleotide of the growing strand.
Detailed explanation-2: -The if given the base sequence for one strand: 5’-AGGTCCG-3’, the complimentary strand must have the sequence: 3’-TCCAGGC-5’.
Detailed explanation-3: -Answer and Explanation: Elongation of the DNA strand always proceeds in the 5’
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