Translation of m-RNA into Protein

The video explains the process of mRNA processing and translation. It begins with the mRNA receiving a methylated cap and poly-A tail. Translation starts when the ribosome attaches to the mRNA. tRNA molecules bring amino acids to the ribosome, matching their anticodons with mRNA codons. This process continues, forming a protein chain until a stop codon signals termination. The video highlights the roles of mRNA, tRNA, and ribosomes in protein synthesis.

What is the role of the methylated cap in mRNA processing?

• It binds to the large ribosomal subunit.

• It signals the end of transcription.

• It initiates DNA replication.

• It protects mRNA from degradation.

Which molecule carries amino acids to the ribosome during translation?

• rRNA

• DNA

• mRNA

• tRNA

What is the first amino acid added to the new protein chain during translation?

• Valine

• Methionine

• Alanine

• Glycine

Where does the first tRNA bind in the ribosome during translation?

• P-site

• D-site

• E-site

• A-site

What happens when a stop codon is reached during translation?

• The ribosome starts a new protein chain.

• A release factor enters the A-site, terminating translation.

• The ribosome disassembles and reassembles.

• The mRNA is degraded.