Statement P: An m-RNA consists of 75 nucleoti | vedclass

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Question

(B) Statement $P$ is incorrect because an $m-RNA$ molecule can have a variable number of nucleotides depending on the length of the polypeptide chain

Vedclass · Accepted Answer

Both Statement $P$ and Statement $Q$ are incorrect.

Vedclass · Answer

(B) Statement $P$ is incorrect because an $m-RNA$ molecule can have a variable number of nucleotides depending on the length of the polypeptide chain it encodes. It is not fixed at $75$.Statement $Q$ is incorrect because there are $64$ codons in the genetic code,out of which $61$ code for amino acids and $3$ are stop codons. Furthermore,these codons are present on the $m-RNA$ molecule,not in the cytoplasm as free entities. Therefore,both statements are incorrect.

List-$I$	List-$II$
$(p)$ $UUU$	$(1)$ $Pro$
$(q)$ $AAA$	$(2)$ $Gly$
$(r)$ $CCC$	$(3)$ $Phe$
$(s)$ $GGG$	$(4)$ $Lys$

Statement $P$: An $m-RNA$ consists of $75$ nucleotides.
Statement $Q$: There are $61$ types of codons in the cytoplasm.

Similar Questions

Match List-$I$ with List-$II$ and select the correct option:
List-$I$ List-$II$
$(p)$ $UUU$ $(1)$ $Pro$
$(q)$ $AAA$ $(2)$ $Gly$
$(r)$ $CCC$ $(3)$ $Phe$
$(s)$ $GGG$ $(4)$ $Lys$

The triplet codon in genetics is:

The sequence of a processed $m-RNA$ is given as $5'-AUG\ CUA\ UAC\ CUC\ CUU\ UAU\ CUG\ UGA-3'$. How many amino acids will be present in the polypeptide chain translated from this $m-RNA$?

Which one of the following codons codes for the same information as $UGC$?

Which code is present in the $DNA$ molecule to produce the necessary chemicals as per the parental instructions?

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Statement $P$: An $m-RNA$ consists of $75$ nucleotides.Statement $Q$: There are $61$ types of codons in the cytoplasm.