How many of the following statements are correct with respect to transcription?

i) Both the strands of DNA function as template for transcription

ii) The transcribed strand separates from the template strand

iii) A primer is required for transcription

iv) A double stranded RNA is formed after transcription

v) RNA polymerase catalyses the process of transcription

Q. Only template strand of DNA participates in the transcription process. What will happen if both the strands transcribes simultaneously? Explain the transcription process.

Q. “Both the strands of DNA are not copied during transcription”.
Choose the correct reasons from the following.

A. If both strands of DNA act as a template, RNA would be coded with different sequences, leading to formation of two different polypeptide chains from the same segment of DNA.

B. If both strands of DNA act as a template, RNA would be coded with different sequences, leading to formation of the same polypeptide chains from the same segment of DNA.

C. If both strands of DNA act as a template for transcription, it simplifies the genetic information transfer machinery.

D. If both strands of DNA act as a template for transcription, it complicates the genetic information transfer machinery.

E. If both strands of DNA act as a template for transcription, dsRNA would be formed which would prevent protein formation.

Q. (a) Construct a complete transcription unit with promoter and terminator on the basis of the hypothetical template strand given below:
(b) Write the RNA strand transcribed from the above transcription unit along with its polarity.

Q. Short / Long Answer Type :
Construct a complete transcription unit with promotor and terminator on the basis of the hypothetical template strand given below write the RNA strand transcribed from the above transcription unit along with its polarity.

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.