NEETZoologyMolecular Basis of Inheritance
What is the role of tRNA in protein synthesis?
Options
- AIt provides the template for mRNA
- BIt brings amino acids and reads the genetic code
- CIt plays a structural and catalytic role during translation
- DNone of the above
Correct answer
B. It brings amino acids and reads the genetic code
Step-by-step solution
In bacteria, there are three major types of RNAs: mRNA (messenger RNA), tRNA (transfer RNA), and rRNA (ribosomal RNA). All three RNAs are needed to synthesize a protein in a cell. The mRNA provides the template, tRNA brings aminoacids and reads the genetic code , and rRNAs play structural and catalytic roles during translation. There is single DNA-dependent RNA polymerase that catalyzes transcription of all types of RNA in bacteria. RNA polymerase binds to promoter and initiates transcription (Initiation)