NEET BIOLOGY

GENETICS AND EVOLUTION

MOLECULAR BASIS OF INHERITANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The number of stop codons which do not code for any amino acid is
A
1
B
2
C
3
D
4
Explanation: 

Detailed explanation-1: -There are three codons that do not code for any amino acid. They are called the stop codons or terminator codons UAA, UAG and UGA.

Detailed explanation-2: -There are 3 STOP codons in the genetic code-UAG, UAA, and UGA. These codons signal the end of the polypeptide chain during translation. These codons are also known as nonsense codons or termination codons as they do not code for an amino acid.

Detailed explanation-3: -There are three stop codons(UAA, UAG, UGA) that do not code for any amino acid.

Detailed explanation-4: -Stop Codon There are 64 different trinucleotide codons: 61 specify amino acids and 3 are stop codons (i.e., UAA, UAG and UGA).

Detailed explanation-5: -Three codons are needed to specify three amino acids. Codons can be described as messengers that are located on the messenger RNA (mRNA). It is a sequence of three nucleotides that code for one specific amino acid; therefore, every three nucleotides represent one codon.

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