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by BlastRoom
Practice with codons, anticodons, the ribosome's job, and how a polypeptide chain is built from an mRNA message.
#biology
20 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
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A messenger RNA codon reads 5'-CCG-3'. Which transfer RNA anticodon pairs with it?
A transfer RNA molecule has the anticodon 3'-UAC-5'. Which messenger RNA codon does it pair with at the ribosome?
A ribosome reaches a codon on the messenger RNA that reads 5'-UGU-3'. Which transfer RNA molecule can bind there?
A messenger RNA strand reads 5'-AUGCCC-3' and is read in frame from its first base. Which anticodon pairs with the SECOND codon?
A transfer RNA carrying an amino acid has the anticodon 3'-AAG-5'. Which codon must it find on the messenger RNA?
When an anticodon pairs with a codon at the ribosome, which base pairs with adenine?
During protein synthesis, one structure holds the messenger RNA and moves along it three bases at a time while the chain is assembled. Which structure is this?
One kind of molecule in the cytoplasm holds a single specific amino acid at one end and a matching three-base sequence at the other. Which molecule is it?
A gene inside the nucleus is copied, and the copy then travels out to the cytoplasm to be read. Which molecule is that copy?
An antibiotic attaches to the site where the growing amino acid chain is joined to the next amino acid, so no new links can form. Which structure has the antibiotic stuck to it?
A drug blocks the enzyme that builds an RNA strand from a DNA template in the nucleus. Which molecule does the drug act on?
Two amino acids are held in neighboring sites on a ribosome and are then joined together. What kind of bond forms between them?
A ribosome finishes reading a message and releases the chain of amino acids it has built. What is that finished chain called?
A transfer RNA sits on its codon only briefly and then leaves the ribosome. What holds the three base pairs of that codon-anticodon match together while it sits there?
A ribosome joins 6 amino acids into one straight chain. How many peptide bonds does that chain contain?
A messenger RNA molecule reads 5'-AUGGCAUCAAAGUGA-3' and is translated from its first base. How many amino acids are in the chain produced?
A short messenger RNA reads 5'-AUGCACUAG-3' and is translated from its first base. How many amino acids long is the chain it makes?
A stretch of messenger RNA is 30 bases long, counting from the first base of its start codon through the last base of its stop codon. How many amino acids does this stretch code for?
A finished polypeptide is 25 amino acids long. What is the smallest number of messenger RNA bases needed to code for it, counting the stop codon?
A messenger RNA reads 5'-CCAUGGGCAUUUAAG-3'. The ribosome begins at the first start codon and reads in frame from there. How many amino acids are in the chain?
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40 questions
