Question

structural unit of a gene is called as
(a) cistron (b) recon (c) muton (d) codon

Answer 1

Answer:

The structural unit of a gene is called codon. It is a three nucleotide sequence which forms a part of the gene and specifies a particular amino acid to be incorporated against it during translation.

The other options given are- recon, muton and cistron.

Cistron is the functional unit, whereas muton refers to a mutation unit and recon represents a recombination unit of a gene.

Answer 2

The structural unit of gene is called as the Codon

Explanation:

• A codon is a sequence of three nucleotide in DNA or RNA that either codes for a particular amino acid or tells the cellular machinery to start or stop using the code.
• There are 64 possible codons, each composed of three of the four possible nucleotides, but only 20 amino acids are found in most biological systems.
• The nucleotide triplet that encodes an amino acid is called a codon.
• Each group of three nucleotides encodes one amino acid.

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