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Inorganic and Organic Biomolecules

Respected tea...

Question

Respected teacher does the replication of rna indirectly lead to replication of DNA(my question is wrt interkinesis)?If not does it mean that rna and DNA in the same cell have separate existence??

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Solution

RNA never get replicated , it get synthesized from DNA. I was talking about nucleotides will not be synthesized for replication of DNA like thymine (it is there only in DNA).

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Q. How many of the following statements are correct ?

A. DNA dependent DNA polymerase requires DNA primer for initiating replication but DNA dependent RNA polymerase does not require any primer for transcription.

B. DNA dependent DNA polymerase requires RNA primer for initiating replication but DNA dependent RNA polymerase does not require any primer for transcription.

C. During replication, unwinding of DNA double helix forms a fork-like structure called replication fork.

D. During transcription, unwinding of the DNA double helix by DNA dependent RNA polymerase forms a transcription bubble.

E. During transcription, unwinding of DNA double helix by DNA dependent RNA polymerase forms a transcription fork.

Q. cDNA is formed using the mRNA as the template. Since RNA to DNA replication does not normally occur in nature, the enzyme ________ is employed to obtain cDNA from mRNA.

Q. cDNA is formed using the mRNA as the template. Since RNA to DNA replication does not normally occur in nature, the enzyme ________ is employed to obtain cDNA from mRNA.

Q. Consider the following statements regarding characters of Archaebacteria that they share with eukaryotes:
I. The cell wall does not contain peptidoglycan.
II. DNA associated with histones.
III. Translation initiated with formylated methionine.
IV. RNA polymerase similar to eukaryotic RNA polymerase II
V. ATPase similarity
VI. Similar DNA replication and repair
How many of the above characters Archaebacteria share with eukaryotes?

Q. Sir/Mam, during DNA replication,what is tge role of a rna primer.Also why there is rna primer not dna primer?

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