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In DNA helix, cytosine is paired with gu...

In DNA helix, cytosine is paired with guanine by

A

covalent bond

B

phosphate bond

C

three hydrogen bonds

D

two hydrogen bonds

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The correct Answer is:
C
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In DNA, cytosine pairs with

Why does cytosine make pair with guanine and not with adenine ?

Assertion : The two strands in DNA are complementary. Reason : Cytosine always pasirs with guanine and thymine with adenine.

Assertion:In a DNA molecules the total quantity of purines equals the total quantity of pyrimidines Reason : Adenine pairs with thymine and cytosine pairs with guanine

Why does bytosine make pair with guanine and not with adenine ?

Choose among the given correct pairing of nitrogen bases in a DNA. (A) Adenine with Guanine (B) Adenine with Thymine (C ) Adenine with Cytosine (D) Thymine with Guanine (E ) Guanine with Cytosine (F) Thymine with Cytosine

In DNA, guanine and cytosine are bonded with how many hydrogen bonds ? (a) 1 (b) 2 (c) 3 (d) 4

In DNA, guanine pairs with :

Hydrogen bonds between cytosine and guanine are :

A2Z-MOLECULAR BASIS OF INHERITANCE-Section C PREVIOUS YEARS' EXAMINATION QUESTIONS (AIIMS Question)
  1. The total number of nitrogenous bases in human genome is estimated to ...

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  2. Given below is the presentation of a kind of chromosomal mutation : ...

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  3. In DNA helix, cytosine is paired with guanine by

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  4. Which one of the following pairs of terms/names mean one and the same ...

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  5. What is true about t-RNA ?

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  6. Which one of the following correctly represents the manner of replicat...

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  7. Which one of the following codons for the same information as UGC ?

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  8. Which one of the following pairs is correctly matched with regard to t...

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  9. The total number of nitrogenous bases in human genome is estimated to ...

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  10. What is the first step in the Southern Blot technique

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  11. Which one of the following pairs of features is a good example of poly...

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  12. During protein synthesis in an organism at one point the process comes...

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  13. Gene which suppresses other gene's activity but does not lie on the sa...

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  14. Human Genome Project (HGP) is closely associated with the rapid develo...

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  15. On the basis of given DNA fingerprint, match the children's (K and L) ...

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

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  17. The given figure shows the structure of ne with their parts labelled a...

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  18. Match the codons given in column I with their respective amino acids g...

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  19. Assertion : 'DNA finger printing' has become a powerful tool to establ...

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  20. Assertion : In stem, pericycle take active part in secondary growth. ...

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