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Antiparallel strands of a DNA molecule m...

Antiparallel strands of a DNA molecule means that `:`

A

the phosphate group of two DNA strands, at their ends, share the same position

B

the phosphate group at the start of two DNA strands are in opposite position (pole)

C

one strands truns clockwise

D

one strand turns anti-clockwise

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The correct Answer is:
B
J D Watson and F H C Crick (1953) showed that DNA has a double helical structure with two polynucleotide chains connected by hydrogen bonds and running in opposite directions (antiparallel). The antiparallel strands of a DNA molecule means that the phosphate groups at the start of two DNA strands are in opposite position (pole).
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-BIOMOLECULES-EXERCISE
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  2. Antibodies in our body are complex

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  3. Antiparallel strands of a DNA molecule means that :

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  4. An organic substance bound to and enzyme and essential for its activit...

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  5. An enzyme that can stimulate germination of barley seeds is

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  6. Nucleotides are building blocks of nucleic acids. Each nucleotide is a...

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  7. Which of the following is the simplest amino acid

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  8. Which one of the following hydrolyses internal phosphodiester, bonds i...

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  9. Which one of the following statements regarding enzyme inhibition is c...

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  10. Enzymes, vitamines and hormones can be classified into a single catego...

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  11. The catalytic efficiency of two different enzymes can be compared by t...

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  12. The most abundant element present in the plants is Or Which of th...

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  13. Which form of RNA has a structure resembling clover leaf?

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  16. Lipids are incoluble in water, because lipids molicules are

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  17. Which of the following is a reducing sugar

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  18. Which steroid is used for transformation?

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  19. Hydrolytic enzyme which acts at low pH is

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  20. Most abundant organic compound on earth is

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