To begin translation, the ribosome has to bind to the mRNA at a specific site ca

Question

To begin translation, the ribosome has to bind to the mRNA at a specific site called the start codon. Despite the fact that are mutiple combinations of codons, the only start codon is 18. Codons are 19. The process of translation ends when a stop codon is reached. A release factor binds to the "A" site of the large ribosomal subunit at a stop codon, namely 20. At the beginning of translation, a complex forms between the ribosome and the messenger RNA. Label the two different subunits on the ribosome below. 21 Type of RNA messenger RNA (mRNA) Function Transfer RNA (tRNA) Plays catalytic (ribozyme) roles and structural in ribosome

Explanation / Answer

18) Three nucleotides

AUG

19) UAG, UGA or UAA

20) Left side from upper to lower: Growing peptide chain, mRNA, small subunit,

Right side from upper to lower: Growing peptide chain, large subunit, tRNA

21) mRNA function:  Carries the genetic information copied from DNA in the form of a series of three-base code, each of which specifies a particular amino acid.

tRNA function:  It is the key for deciphering the code words in mRNA.

rRNA: Play catalytic (Ribozyme) roles and structural in ribosome.

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