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How are these base pairs held together i...

How are these base pairs held together in a DNA molecule?
Explain the base complementarity rules. Name the scientist who framed this rule.

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(i) ATCGTACTA.
(ii) With the help of weak hydrogen bonds.
(iii) Adenine always joins thymine A = T and cytosine always joins guanine C = G. Erwin Chargaff framed this rule.
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OSWAAL PUBLICATION-MOLECULAR BASIS OF INHERITANCE -TOPIC-1: Short Answer Type Questions-II
  1. Describe the Semiconservative method of DNA replication.

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  2. You are repeating the Hershey-Chase experiment and are provided with t...

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  3. What background information did Watson and Crick have made available f...

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  4. How did Hershey and Chase prove that DNA is the hereditary material?

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  5. How did Griffith explain the transformation of R-strain (non-virulent)...

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  6. Explain how Macleod, Mc Carty and Avery determined the biochemical nat...

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  7. Explain the post transcriptional events in eukaryotes.

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  8. Give reasons for (i) Both strands of DNA are not copied during trans...

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  9. Differentiate between the process of transcription in prokaryotes and ...

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  10. Draw a labelled schematic sketch of replication fork of DNA. Explain t...

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  11. (a) Draw a schematic representation of the structure of a transcriptio...

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  12. Describe the initiation process of transcription in bacteria.

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  13. Who revealed biochemical nature of transforming principle ? How was it...

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  14. The base sequence in one of the strands of DNA is TAGTCATGAT Give th...

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  15. The base sequence in one of the strands of DNA is TAGTCATGAT How are...

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  16. The base sequence in one of the strands of DNA is TAGTCATGAT Explain...

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  17. How is nucleosome formed? Draw a diagram of the nucleosome.

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  18. Define the terms splicing, capping and tailing.

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  19. Where and when does replication occur?

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  20. How are these base pairs held together in a DNA molecule? Explain t...

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