Home
Class 12
BIOLOGY
Assertion : A monocistronic mRNA can pro...

Assertion : A monocistronic mRNA can produce several types of polypepitude chains .
Reason : The terminator codon is present on the mRNA.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If the assertion is false but reason is true

Text Solution

Verified by Experts

The correct Answer is:
D
Monocistronic is a type of messenger RNA that can encode only one polypeptide per RNA molecule. `to` mRNA consist of terminator codon i.e. UAA, VAG and UGA that stop protein synthesis
Promotional Banner

Similar Questions

Explore conceptually related problems

Compare the statements A and B Statement A : A monocistronic mRNA can produce several types of polypeptide chains. Statement B: The terminator codon is present on the mRNA. Select the correct description:

Assertion A single-strand of mRNA is capable of forming different polypeptide chains Reason Termination codons occur in mRNA

The mRNA Consisting of 282 nucleotides can produce a polypeptide chain of

Assertion : Polycistronic mRNA, found in prokaryotes, specify a number of polypeptides. Reason : Monocistronic mRNA, found in eukaryotes, specify only a single polypeptide.

Assertion. A single mRNA strand is capable of forming a number of different polypeptide chains. Reason. The mRNA strand has terminator codons.

Consider the following statements : Assertion (A) : Amber codon is a termination codon . Reason (R ) : If in a m-RNA, a termination codon is present, the protein synthesis stops abruptly whether the protein synthesis is complete or not. Now select you answer from code given below :

Assertion: Protein that produced in response to antibodies are called antigens. Reason: Antibodies are present on the surface of RBCs

Assertion : All three ENAs (mRNA, tRNA and rRNA) are needed to synthesise a protein in a cell. Reason : The mRNA provides the template, RNA brings aminoacids and reads the genetic code, and tRNA play structural and catalytic role.

Synthesis of polypetide terminates when a nonsense codon of mRNA reaches