Structure of m-RNA is:

linear

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branched

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single helix

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double helix

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Solution

The correct option is C single helix
mRNA is the structural opposite of DNA.
When mRNA is to be made, the helix of DNA uncoils and a structural opposite is made in the form of mRNA.
Since mRNA copies the data of just 1 strand of DNA (note that DNA is uncoiled during transcription), mRNA contains only single helix.

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Similar questions

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. In

α

-helix structure, polypeptide chains are folded in a:

Q. Proteins are found to have two different types of secondary structures vix.

α -

helix and

β -

pleated sheet structure,

α -

helix structure of a protein is stabilised by:

$α -$ helix is a secondary structure of proteins formed by twisting of polypeptide chain into right handed screw like structure. Which type of interactions are responsible for making the $α -$ helix structure stable?

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