GENETICS AND EVOLUTION
MOLECULAR BASIS OF INHERITANCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
UGA
|
|
|
AUG
|
|
|
UAA
|
|
|
CGA
|
Detailed explanation-1: -Figure 1: In mRNA, three-nucleotide units called codons dictate a particular amino acid. For example, AUG codes for the amino acid methionine (beige).
Detailed explanation-2: -AUG is the most common START codon and it codes for the amino acid methionine (Met) in eukaryotes and formyl methionine (fMet) in prokaryotes. During protein synthesis, the tRNA recognizes the START codon AUG with the help of some initiation factors and starts translation of mRNA.
Detailed explanation-3: -AUG is the codon for methionine, and is also the start codon.
Detailed explanation-4: -Methionine is coded as AUG. It is also the start codon. It initiates protein synthesis. During protein synthesis, methionine is the first amino acid to dock in the ribosome.
Detailed explanation-5: -Statement II : ‘AAA’ and ‘AAG’ both codons code for the amino acid lysine.