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In the DNA molecule
Options
(a) the total amount of purine nucleotides and pyrimidine nucleotides is not always equal
(b) there are two strands which run parallel in the 5′ → 3′ direction
(c) the proportion of Adenine in relation to thymine varies with the organism
(d) there are two strands which run antiprallel one in 5′ → 3′ direction and other in 3′ → 5′
Correct Answer:
there are two strands which run antiprallel one in 5′ → 3′ direction and other in 3′ → 5′
Explanation:
In the DNA molecule, there are two strands which run anti parallel one is 5′ – 3′ direction and other in 3′ – 5′ direction, the two chains are held together by hydrogen bonds between their bases.Adenine (A), a purine of one chain his exactly opposite thymine (T), a pyramidine of the other chain. Similarly, cytosine (C), a pyrimidine lies opposite guanine (G), a purine. This allows a sort of lock & key arrangement between large sized purine & small sized pyrimidine. It is strengthened by the appearance of hy
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Topics: Genetics
(204)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Chloroplasts without grana are known to occur in
- Which of the following structures between two adjacent cells forms an effective
- Which two distinct mictobial processes are responsible for the release of fixed nitrogen
- If a boy’s father has haemophilia and his mother has one gene for haemophilia,
- Which one of the following acts as a catalyst in bacterial cells?
Topics: Genetics (204)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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