GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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AGT
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GAT
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TAC
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TCA
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Detailed explanation-1: -(i) Give the base sequence of its complementary strand. (ii) How are these base pairs held together in a DNA molecule? (iii) Explain the base complementary rule.
Detailed explanation-2: -If the sequence of bases on one DNA strand is AGCTCAG (reading from 5’ to 3’), the sequence of bases on the opposite strand would be TCGAGTC (reading from 3’ to 5’). This is because adenine (A) is always associated with thymine (T), and guanine (G) is always associated with cytosine (C).
Detailed explanation-3: -A strand of DNA with the sequence AACTTG will have a complimentary strand with the sequence. Explanation: There are four nitrogenous bases. They help in relation of one of the strand of the DNA with the others strand.
Detailed explanation-4: -Different DNA sequences have a different arrangement of bases where the base-pairing rule is the same that adenine will bind to thymine, and guanine will bind to cytosine. So, according to the complementary base pairs, the base sequence AAGCAA will have TTCGTT as its complementary sequence.