Gujarati
5.Molecular Basis of Inheritance
normal

Genetic codes are

A

Similar in $mtDNA$, virusus, bacteria and eukaryotes

B

Different in viruses and bacteria

C

Different in $mtDNA$

D

Different in $mtDNA$ and bacteria

Solution

(c) Genetic codes are different in mt $DNA$ i.e., $AGG$ and $AGA$ code for arginine but function as stop signals in human mitochondrion.

$UGA$, a termination codon, corresponds to cryptophan while $AUA$ $(codon for isoleucine)$ denotes methionine in human mitochondria.

Standard 12
Biology

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