Translation

Translation

For AP/IB Biology

Multiple Choice

The genetic code is universal. This implies that all organisms

• use the same triplet codons for the same amino acids

• use the same triplet codons for different amino acids

• use different triplet codons for the same amino acids

• use different triplet codons for different amino acids

Multiple Choice

The mRNA sequence is

AUGGCCAUAUUGCGA

The anticodon of the THIRD tRNA used in translation must be

• AUG

• TAC

• GGU

• UAU

Multiple Choice

Translation always begins at

• in the 5' UTR (untranslated region) of the mRNA

• the first 3 bases (codon) of the mRNA sequence

• the first AUG codon for methionine (Met) in the mRNA

• the first AUG anticodon in the mRNA

Multiple Choice

What chemical reaction causes protein synthesis, the addition of amino acids to the N-terminus of the growing polypeptide chain at the P-site of the ribosome?

• hydrolysis

• dehydration synthesis

• esterification

• aminofication

Multiple Choice

All proteins begin translation on free ribosomes. For proteins that must cross membranes (integral membrane and secreted proteins), the ribosome moves to the endoplasmic reticulum. What is the correct order of the organelles involved in the synthesis of a secreted protein ?

• ribosome, endoplasmic reticulum, cell membrane, Golgi apparatus, vesicles

• ribosome, endoplasmic reticulum, vesicles, Gogli apparatus, vesicles, cell membrane

• ribosome, Golgi apparatus, endoplasmic reticulum, vesicles, cell membrane,

• ribosome, endoplasmic reticulum, vesicles, cell membrane, Golgi apparatus

Overview of Eukaryotic Gene Expression

Open Ended

Outline (summarize) the 3 steps of translation. Include details of what occurs at the A-site, P-site and E-site of the ribosome. Use your own words, do not copy/paste (that demonstrates no learning).