Protein Synthesis

Question 1

Transcription

Answer 1

• First part of protein synthesis
• The DNA information is encoded in to the mRNA
• Occurs in the nucleus

Question 2

Steps of Transcription

Answer 2

• The section of the DNA with the pattern for the polypeptide uncoils.
• The mRNA attaches to the DNA in a complementary fashion
• Each set of three bases is called a codon and the codon codes for a specific amino acid
• After the mRNA has matched up with the entire DNA section (gene), it detaches

Question 3

Editing of mRNA

Answer 3

Before the mRNA leaves the nucleus the introns are removed and the exons are spliced together

Question 4

Exons

Answer 4

Part of the gene that contains the code for the polypeptides

Question 5

Introns

Answer 5

Noninformational regions within a gene that separates exons

Question 6

Translation

Answer 6

• The information carried by the mRNA is decoded and used to assemble the polypeptide
• Occurs in the cytoplasm

Question 7

Steps of Translation

Answer 7

• Ribosome holds the mRNA
• Ribosome attaches the mRNA codon to the correct tRNA anticodon
• Ribosome hooks the amino acids together and then moves to handle the next codon
• When the last amino acid is hooked up, the protein is released by the ribosome.