(Advanced) Transcription/ Translation Test Bank

Determine the amino acid sequence from the original DNA sequence (use a codon chart) TAC - CTC - CTG - GCT

• Met - Glu - Asp - Arg
• Met - Asp - Try- Cys
• Iso - Met - Val - Gly
• Ala - Val - His - Leu

Determine the amino acid sequence from the original DNA sequence (use a codon chart) TGG - AGT - TTC - CAG

• Thr - Ser - Lys - Val
• Met - Asp - Try- Cys
• Iso - Met - Val - Gly
• His - Val - His - Leu

The mutation that makes people lactose tolerant is NOT part of the lactase gene- in which of the following is the mutation located?

• the genetic switch of the lactase gene
• an intron of the lactase gene
• the gene for glucose production
• it changes depending on the individual

When the enzyme lactase breaks down the sugar lactose, which two simpler sugars are formed?

• glucose and galactose
• glucose and maltose
• glucose and fructose
• galactose and maltose

The alpha helix and beta sheet is an example of what level of protein structure?

• primary
• secondary
• tertiary
• quatenary
• none of the above

What primarily determines the secondary structure of a protein

• hydrogen bonds between side chains
• the peptide bonds between carboxyl and amine groups
• the phosphodiester bonds between the 5' and 3' carbons
• interactions between different proteins/ chains of amino acids

What is the one part of a protein that changes from one amino acid to another?

• Ammine group
• Carboxyl group
• R- Side chains
• All of the above

The link between amino acids in a protein is a ___________________ bond

• peptide
• phosphodiester
• carboxylic
• aminic

The primary structure of a protein is primarily determined by....

• the order of amino acids on the polypeptide chain
• hydrogen bonding between side chain groups
• the 3-d structure of the molecule
• the interaction of multiple amino acids chains together

The part of the amino acid highlighted in blue is the ...

• amine group
• carboxyl group
• side chain
• polypeptide