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The couplings between base units of DNA ...

The couplings between base units of DNA is through

A

Hydrogen bonding

B

Electrostatic bonding

C

Covalent bonding

D

vander Waals forces

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The correct Answer is:
A
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AAKASH SERIES-BIOMOLECULES-OBJECTIVE EXERCISE - 1
  1. The base present in Cytidine :

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  2. The backbone of a nucleotide strand contains the following sequence of...

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  3. The couplings between base units of DNA is through

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  4. The main role of DNA in a living system is

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  5. Synthesis of identical copies of DNA is called

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  6. (A) Guanine unites with Cytosine but not with Thymine. (R) Guanine a...

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  7. (A) Adenine pairs up with thymine but not with cytosine. (R) With cy...

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  8. (A): Proteins are made up of a -amino acids (R) : During denaturatio...

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  9. (A) The pyrimidine base thymine is present in RNA. (R) DNA controls ...

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  10. (A) The simplest alpha -amino acid is optically inactive. (R) Simple...

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  11. (A) The folding of polypeptide chains leads to globular proteins. (R...

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  12. (A): All DNA and RNA molecules contain adenine, guanine and cytosine b...

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  13. (A) Enzymes are globular proteins. (R) Enzymes provide active site t...

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  14. Water soluble vitamins are

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  15. Which of the following is not a source of vitamina-A

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  16. Night blindness is due to the deficiency of

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  17. The chief source of vitamin D is

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  18. Antiricketic Vitamin is

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  19. Dificiency of Vitamin E leads to

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  20. In all green leaves and vegetables which of the following vitamin is a...

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