GCU BIO 181 EXAMS SET VERIFIED
QUESTIONS AND ACCURATE ANSWERS
COMPLETE PREPARATION FILE
●● TATA box
Answer: A promoter that is crucial in forming the initiation complex in
eukaryotes
●● Introns
Answer: a non-coding, intervening sequence within a eukaryotic gene
●● Exons
Answer: Expressed, usually translated into amino acid sequences within
a eukaryotic gene
●● Spliceosomes
Answer: consists of a variety of proteins and several small nuclear
ribonucleoproteins (snRNPs) that recognize the splice sites
●● Spliceosome catalytic activity
Answer: The RNAs of the spliceosome catalyze the splicing reaction
,●● Ribozyme
Answer: Catalytic RNA molecules that function as enzymes and can
splice RNA
●● Alternative RNA splicing
Answer: some genes encoding more than one kind of polypetide,
depending on which segments are treated as exons during splicing
●● Transfer RNA (tRNA)
Answer: A cell translates an mRNA message into protein with the help
of __________
●● (tRNA)
Answer: transfer amino acid to the growing polypeptide in a ribosome
●● aminoacyl-tRNA synthetase
Answer: First step in accurate translation by an enzyme that corrects
match between a tRNA and an amino acid
●● Wobble
Answer: Flexible pairing at the third base of a codon and allows some
tRNS to bind to more than one codon
, ●● ribosomal RNA (rRNA)
Answer: the two ribosomal subunits (large and small) are made of
proteins and _________________
●● signal peptide
Answer: marks polypeptides destined for the ER or for secretion
●● signal-recognition particle (SRP)
Answer: binds to the signal peptide, brings the signal peptide and its
ribosome to the ER
●● George Beadle and Edward Tatum
Answer: developed one gene-one enzyme hypothesis accuracy
●● transcription
Answer: synthesis of RNA using information, produces messenger RNA
(mRNA)
●● Translation
Answer: synthesis of a polypeptide, using information in the mRNA,
ribosomes are the sites
●● RNA polymerase
QUESTIONS AND ACCURATE ANSWERS
COMPLETE PREPARATION FILE
●● TATA box
Answer: A promoter that is crucial in forming the initiation complex in
eukaryotes
●● Introns
Answer: a non-coding, intervening sequence within a eukaryotic gene
●● Exons
Answer: Expressed, usually translated into amino acid sequences within
a eukaryotic gene
●● Spliceosomes
Answer: consists of a variety of proteins and several small nuclear
ribonucleoproteins (snRNPs) that recognize the splice sites
●● Spliceosome catalytic activity
Answer: The RNAs of the spliceosome catalyze the splicing reaction
,●● Ribozyme
Answer: Catalytic RNA molecules that function as enzymes and can
splice RNA
●● Alternative RNA splicing
Answer: some genes encoding more than one kind of polypetide,
depending on which segments are treated as exons during splicing
●● Transfer RNA (tRNA)
Answer: A cell translates an mRNA message into protein with the help
of __________
●● (tRNA)
Answer: transfer amino acid to the growing polypeptide in a ribosome
●● aminoacyl-tRNA synthetase
Answer: First step in accurate translation by an enzyme that corrects
match between a tRNA and an amino acid
●● Wobble
Answer: Flexible pairing at the third base of a codon and allows some
tRNS to bind to more than one codon
, ●● ribosomal RNA (rRNA)
Answer: the two ribosomal subunits (large and small) are made of
proteins and _________________
●● signal peptide
Answer: marks polypeptides destined for the ER or for secretion
●● signal-recognition particle (SRP)
Answer: binds to the signal peptide, brings the signal peptide and its
ribosome to the ER
●● George Beadle and Edward Tatum
Answer: developed one gene-one enzyme hypothesis accuracy
●● transcription
Answer: synthesis of RNA using information, produces messenger RNA
(mRNA)
●● Translation
Answer: synthesis of a polypeptide, using information in the mRNA,
ribosomes are the sites
●● RNA polymerase
