Decoding The Genetic Code: From DNA To Protein Synthesis

The video tutorial explains the genetic code, starting with DNA base pairing and moving to protein synthesis. It covers transcription, where mRNA is formed, and translation, where tRNA bonds with mRNA to form amino acids. The tutorial demonstrates how to use a codon table to decode mRNA sequences into amino acids, providing examples of alanine and glycine. The process of coding and decoding genetic information is summarized, emphasizing the role of DNA, mRNA, and tRNA in protein synthesis.

What is the complementary base pair for cytosine (C) in DNA?

• Adenine (A)

• Thymine (T)

• Uracil (U)

• Guanine (G)

During transcription, which molecule is synthesized from the DNA template?

• DNA

• rRNA

• mRNA

• tRNA

Which of the following is a correct mRNA sequence transcribed from a DNA strand?

• TACGGT

• AUGCCA

• GCTTAA

• CCGATT

Where does the mRNA take the genetic code after transcription?

• Golgi apparatus

• Nucleus

• Mitochondria

• Ribosome

What is the role of transfer RNA (tRNA) in protein synthesis?

• It replicates DNA.

• It forms the structure of ribosomes.

• It transcribes DNA into RNA.

• It carries amino acids to the ribosome.

How many bases form a codon that codes for a single amino acid?

• Two

• Four

• Three

• One

Which amino acid is coded by the mRNA codon GCA?

• Serine

• Glycine

• Alanine

• Valine

What is the first step in using a codon table to find an amino acid?

• Identify the tRNA sequence

• Start from the outer circle

• Locate the ribosome

• Read the first base of the codon

What is the function of a codon table in protein synthesis?

• To replicate DNA

• To form ribosomes

• To identify amino acids coded by mRNA

• To synthesize tRNA

Which amino acid is coded by the mRNA codon GGU?

• Proline

• Leucine

• Alanine

• Glycine