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What is degeneracy of genetic code?

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प्रश्न

What is degeneracy of genetic code?

Explain when is a genetic code said to be degerate.

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उत्तर

Usually, the single amino acid is encoded by a single codon. However, some amino acids are encoded by more than one codon. e.g. Cysteine has two codons, while isoleucine has three codons. This is called the degeneracy of the code. Degeneracy of the code is explained by the Wobble hypothesis. Here, the first two bases in different codons are identical but the third one varies.

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पाठ 4: Molecular Basis of Inheritance - Exercises [पृष्ठ ९२]

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बालभारती Biology [English] Standard 12 Maharashtra State Board
पाठ 4 Molecular Basis of Inheritance
Exercises | Q 2.8 | पृष्ठ ९२

संबंधित प्रश्‍न

If the codon on m-RNA is AUG, the compatible anticodon on t-RNA is _______.


What is 'RNA'?


Long Answer Question:

Justify the statement. If the answer is false, change the underlined word(s) to make the statement true

The DNA molecule is double-stranded and the RNA molecule is single-stranded.


Long Answer Question:

Justify the statement. If the answer is false, change the underlined word(s) to make the statement true

Transcription must occur before translation may occur.


Exon segments are reunited after splicing by


How t-RNA act as an adapter molecule?
Explain in detail with the help of a diagram.


Changes in the nucleotide of gene : Mutation : : Changes in the place of ribosome : __________


Define mutation.


Explain in short.

Mutation


Identify the strand of DNA which acts as a template during transcription.


What will be the codon sequence on mRNA formed on template strand if the codon sequence on coding strand of transcription unit is ATG GTG AGC TAC GCG?


In the genetic dictionary, there are 64 codons as ______


Identify the process that occurs inside the nucleus during protein synthesis in eukaryotic cells.


The mRNA AUGCAGAUACGC recognizes four amino acids and this character of the code referred to as ____________.


Identify the cell organelle that serves as a site of protein synthesis.


When cut by the same restriction endonuclease, the DNA fragments with staicky ends can be joined with any DNA fragment that contains complementary staicky ends into a molecule of recombinant DNA by the enzyme ______


A functional unit of gene, which specific the synthesis of one polypeptide is known as:


During protein synthesis, a ribosome moves from 5 to 3 and of mRNA to recognize all codons. This movement of ribosome is called:


Protein synthesis occurs in ______.


Given,
Transcription (eukaryotic) : Nucleus; similarly, Transcription (prokaryotic) : ______ ?
Choose the correct option.


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