
Choose the correct answers from the alternatives given:
Which of the following is not true of a codon?
a. It extends from one end of a tRNA molecule
b. It never codes for more than one amino acid
c. It may code for the same amino acid as another codon does
d. It consists of three nucleotides
Answer
495.9k+ views
Hint: Codon is nothing but the sequence of nucleotide bases which are three in number and code for aminoacid. Based on the information present on the codon, translation usually takes place.
Complete answer:
Genetic code describes the relationship between the DNA sequence and the protein that encodes the DNA sequence. Generally in the case of DNA replication and all the reading takes place in the gene in the group of the three bases.
In general there are 64 codons present, among them all only 61 codons code for aminoacids, whereas the remaining 3 codons act as stop codons.
When three nucleotides present as a single stretch we call it codon. We all know that nucleotides are made up of purines and pyrimidines, which are Adenine, thymine, guanine and cytosine where among those any three are present as triplets and code for amino acids.
Sometimes they code for the same amino acids. Most of the amino acids usually specified by the codon, more than one time, tRNA helps in the conversion of codons into proteins. In order to transfer tRNA has anticodons, which can pair up with the codon bases.
Important things about codons: It is a triplet of nucleotide bases, Codons are usually reductant, several codons represent the single amino acid, but there is no ambiguity.
So from the above explanation except about tRNA remaining options are right first is wrong as the tRNA end carries the anticodons, but not the codons.
So the option A is correct answer.
Note: To know more about the functions of codon and genetic code, it’s important to have knowledge regarding nucleotides and at the same time one should know about the transcription, translation and structure of tRNA molecules.
Complete answer:
Genetic code describes the relationship between the DNA sequence and the protein that encodes the DNA sequence. Generally in the case of DNA replication and all the reading takes place in the gene in the group of the three bases.
In general there are 64 codons present, among them all only 61 codons code for aminoacids, whereas the remaining 3 codons act as stop codons.
When three nucleotides present as a single stretch we call it codon. We all know that nucleotides are made up of purines and pyrimidines, which are Adenine, thymine, guanine and cytosine where among those any three are present as triplets and code for amino acids.
Sometimes they code for the same amino acids. Most of the amino acids usually specified by the codon, more than one time, tRNA helps in the conversion of codons into proteins. In order to transfer tRNA has anticodons, which can pair up with the codon bases.
Important things about codons: It is a triplet of nucleotide bases, Codons are usually reductant, several codons represent the single amino acid, but there is no ambiguity.
So from the above explanation except about tRNA remaining options are right first is wrong as the tRNA end carries the anticodons, but not the codons.
So the option A is correct answer.
Note: To know more about the functions of codon and genetic code, it’s important to have knowledge regarding nucleotides and at the same time one should know about the transcription, translation and structure of tRNA molecules.
Recently Updated Pages
Master Class 12 Social Science: Engaging Questions & Answers for Success

Class 12 Question and Answer - Your Ultimate Solutions Guide

Master Class 10 Computer Science: Engaging Questions & Answers for Success

Master Class 10 Maths: Engaging Questions & Answers for Success

Master Class 10 English: Engaging Questions & Answers for Success

Master Class 10 General Knowledge: Engaging Questions & Answers for Success

Trending doubts
The gas that burns in oxygen with a green flame is class 12 chemistry CBSE

Most of the Sinhalaspeaking people in Sri Lanka are class 12 social science CBSE

And such too is the grandeur of the dooms We have imagined class 12 english CBSE

What I want should not be confused with total inactivity class 12 english CBSE

RQ of protein is A 07 B 10 C 09 D more than one class 12 biology CBSE

What is the Full Form of PVC, PET, HDPE, LDPE, PP and PS ?
