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Which DNA molecule among the following w...

Which DNA molecule among the following will melt at lowest temperature ?

A

`5'-A ATA A AGC-3'`
`3'-T TAT T T CG-5'`

B

`5'-A ATGCTGC-3'`
`3'-T TACGACG-5'`

C

`5'-ATGCTGAT-3'`
`3'-TACGACTA-5'`

D

`5'-GCATAGCT-3'`
`3'-CGTATCGA-5'`

Text Solution

Verified by Experts

The correct Answer is:
A
Option (A) has lowest number of H-bonds, so it melts at the lowest temperature.
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A2Z-MOLECULAR BASIS OF INHERITANCE-Section D: Chapter -end Test
  1. Which DNA molecule among the following will melt at lowest temperature...

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  2. Wobble hypothesis establishes :

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  3. DNA replication in eukaryotes commences :

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  4. An anticodon of t-RNA can recognize more than one codon of m-RNA . It ...

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  5. Who proposed that genes control production of enzymes ?

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  6. Nobel Prize for one gene one enzyme hypothesis was given to

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  7. The number of base substitution possible in amino acid codons is

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  8. Find out the correct answers out of the following discoveries. 1. Gr...

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  9. Protein helping in opening of DNA double helix in front of replication...

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  10. Lac operon is

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  11. Who synthesised the first artificial gene ?

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  12. tRNA recognises ribosome by

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  13. A mutation at one base of the first codon of a gene produces a non-fun...

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  14. Jacob and Monod won Nobel Prize for their work on

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  15. Temin worked on virus

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  16. Reverse transcription was discovered by

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  17. Transition mutation is due to replacement of

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  18. Which organism was used by Beasdle and Tatum to proposed one gene one ...

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  19. Which one is involved in DNA repair ?

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  20. H.G. Khorana was awarded the Nobal Prize for :

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  21. Telomere of eukaryotic chromosome possess short segments

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