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Which of the following shown the correct...

Which of the following shown the correct positions of the phoshate (P), sugar (S) and base (B) molecules in the given line diagrams representing the structure of DNA?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
(a) : DNA helix is made up of two polynucleotide chains, where the backbone is constituted by sugar - phosphate and the bases project inside.
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NCERT FINGERTIPS-MOLECULAR BASIS OF INHERITANCE-Molecular Basis Of Inheritance
  1. In DNA strand, the nucleotides are linked together by

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  2. In a DNA molecule, the phosphate group is attached to carbon of the su...

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  3. Which of the following shown the correct positions of the phoshate (P)...

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  4. DNA as an acidic substance present in nucleus was first identified by ...

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  5. Which of the following pairs is incorrectly matched?

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  6. Watson and Crick (1953) proposed DNA was based on (i) X-ray diffract...

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  7. If a double stranded DNA has 20% of cytosine, what will be the percent...

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  8. In one polyncleotide strand of a DNA molecule the ratio of A+T//G+C ...

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  9. If the sequence of bases in one strand of DNA is ATGCATGCA, what woul...

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  10. Refer to the given figure

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  11. Given figure represents the DNA double helix model as proposed by Was...

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  12. The given flow chart represents the flow of genetic information betwee...

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  13. Synthesis of DNA from RNA is explained by

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  14. Histone proteins are

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  15. What does the given diagram represent ?

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  16. The structure in chromatin seen as 'beads-on' string' when viewed unde...

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  17. Refer the given figure of nucleosome and select the option that correc...

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  18. Read the following satements and select the correct option. Loosely ...

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  19. Find out the wrong statement about heterochromatin.

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  20. The year 2003 was celebrated as the 50^(th) anniversary of discovery ...

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