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Why do you see two different types of re...


Why do you see two different types of replicating strands in the given DNA replication fork? Explain. Name of these strands.

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Both the parent strands function as template strands. On the template strand with 3. `to` 5. polarity, ·the new strand is synthesised as a continuous strand. The DNA polymerase can carry out polymerisation of the nucleotides only in 5. `to` 3. .direction. This is called continuous synthesis and the strand is called leading strand.On the other template strand with 5. `to` 3. polarity, the new strand is synthesised from the point of replication • fork, also in 5. `to` 3. direction. ,But, in shon fragments, they are later joined by DNA ligases to form a strand called lagging strand.
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ARIHANT PUBLICATION-MOLECULAR BASIS OF INHERITANCE-PART I (QUESTIONS FOR PRACTICE) (Short Answer Type Questions)
  1. Write a short note on nitrogenous bases.

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  2. If adouble-stranded DNA has 20% of cytosine, calculate the percentage ...

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  3. The base sequence in one of the strands of DNA is TAGCATGAT. (i) Give...

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  4. A DNA segment has a total of 1000 nucleotides, out ofwhich240 of them ...

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  5. It is established that RNA is the first genetic material. Explain givi...

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  6. Write short note on RNA.

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  7. Write a short note on tRNA

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  8. Explain the two factors responsible for conferring stability to double...

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  9. Which property of DNA double helix led Watson and Crick to hypothesise...

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  10. Name a few enzymes involved in DNA replication other than DNA polymera...

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  11. State the dual role of deoxyribonucleoside triphosphates during DNA re...

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  12. Why do you see two different types of replicating strands in the given...

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  13. Write a short note on central dogma.

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  14. Explain transcription ?

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  15. Describe the initiation process of transcription in bacteria

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  16. Explain {in one or two lines) the function of the following (i) Intr...

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  17. State the difference between the structural' genes in a transcription ...

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  18. Depending upon the chemical nature of the template (DNA or RNA) and th...

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  19. Why hnRNA is required to undergo splicing?

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