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(A) Thymine pairs with adenine whereas c...

(A) Thymine pairs with adenine whereas cytosine pairs with guanine in DNA molecule.
(R) The hydrogen bonding between bases of two strands is highly specific.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-BIOMOLECULES-OBJECTIVE EXERCISE-4 (ASSERTION (A) & REASON (R) TYPE QUESTIONS :)
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  2. (A) RNA on hydrolysis gives equal content of guanine, cytocine and als...

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  3. (A) Thymine pairs with adenine whereas cytosine pairs with guanine in ...

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  4. (A) Glutamic acid is acidic amino acid. (R) Glutamic acid contains tw...

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

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  6. (A) Glycine is essential amino acid. (R) Glycine is optically active...

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

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  8. (A) Alpha amino acids generally exists as zwitterions. (R) The basic...

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

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  11. (A) Denaturation of a protein can be done on heating or by adding a su...

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  12. (A) All enzymes are proteins but all proteins are not enzymes. (R) K...

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  13. (A) At isoelectric point an amino acid has highest solubility. (R) I...

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  15. (A) Entropy increases due to boiling of egg. (R) Breaking of tertiar...

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  16. (A) Amino acid that can be synthesised by human body is called essenti...

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  17. (A) At isoelectric point, the amino group does not migrate under the i...

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  18. (A) Albumin, present in egg white converting into water insoluble fibr...

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  19. (A) Rate of the hydrolysis of sucrose in the presence of acid is less ...

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  20. (A)alpha -amino acids have high melting point and show unusually high ...

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