Enzyme aminoacyl synthetase is responsible for
A) Initiating mRNA synthesis
B) Charging tRNA molecules
C) Combining tRNA at P site of mRNA
D) None of the above
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ANSWER
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THE ANSWER IS Charging tRNA molecules
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THE ANSWER IS Charging tRNA molecules
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Answer:
Enzyme aminoacyl synthetase is responsible for charging tRNA molecules while protein synthesis i.e., translation is happening.
Explanation:
- The translation is the process by which polypeptide synthesis occurs over the ribosome.
- Aminoacyl tRNA synthetase helps in the charging of tRNA. The charging of tRNA is also known as the Aminoacylation of tRNA. An amino acid combines with its specific aminoacyl tRNA synthetase in the presence of ATP. This is how the formation of an amino-acyl-adenylate enzyme complex takes place.
Mg2+
AA +ATP + E →→→→→→→→ AA ≈ AMP - E + PPi
Amino acid Amino Pyrophosphate
acyl tRNA
synthetase
- This complex reacts with tRNA specific for the amino acid to form another complex known as an aminoacyl- tRNA complex. tRNA complexed with amino acid is later called charged tRNA.
AA ≈ AMP -E + tRNA →→→→→→→→ AA- tRNA + AMP+ E
Amenoacyl adenylate enzyme
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