BIO 105 EXAM 1 TESTED REVIEW QUESTIONS AND
ANSWERS SURE A+
✔✔terminator region - ✔✔-has binding sites for other factors that cause RNA
polymerase to stop transcription and leave the DNA
-species the end of the RNA and how to process the end
✔✔RNA polymerase binds to a ______ sequence, melts apart the DNA strands and
initiates ______ - ✔✔promoter, transcription
✔✔RNA polymerase adds deoxynucleotides to the ______ - ✔✔3' -OH of an RNA
polymer
✔✔a particular allele of a gene has suffered a mutation that results in deletion of the
promoter region. Such an allele should be ______ to wildtype - ✔✔recessive
✔✔mRNA - ✔✔"messenger" RNA
*made during transcription*
brings info to the ribosome and ribosome makes the polypeptide
✔✔non-coding RNA - ✔✔doesn't encode proteins
are never translated
, ✔✔rRNA - ✔✔-like an enzyme
-"ribosomal RNA" (made in the ribosome)
-make up the majority of the ribosomes
✔✔tRNA - ✔✔"transfer RNA"
-carries amino acids and brings them to the ribosome so it can make polypeptide chain
*essential for translation of proteins
✔✔T or F
a bacterial mRNA can begin translation before transcription is finished - ✔✔true
✔✔T or F
a bacterial mRNA can be simultaneously translated by multiple ribosomes - ✔✔true
✔✔T or F
a bacterial mRNA can be translated multiple times before its degraded - ✔✔true
✔✔T or F
transcription and translation are uncoupled in eukaryotes since each process must
occur in separate compartments - ✔✔true
✔✔where does translation occur? - ✔✔in the cytoplasm or on the ER
✔✔what does every mRNA coding region start with? - ✔✔AUG start codon
✔✔what are the stop codons? - ✔✔UAG, UAA, UGA
✔✔wobble base pairing - ✔✔pairing between 2 nucleotides in RNA molecules that does
not follow watson-crick base pair rules
-one tRNA can pair with more than one synonymous codon through wobble base
pairing
✔✔what are the three sites that tRNAs matching successive codons are bound to at
any one time? - ✔✔*amino acid site*
*polypeptide site*
*exit site*
✔✔stages of translation:
*initiation* - ✔✔small subunit binds first and finds AUG
ANSWERS SURE A+
✔✔terminator region - ✔✔-has binding sites for other factors that cause RNA
polymerase to stop transcription and leave the DNA
-species the end of the RNA and how to process the end
✔✔RNA polymerase binds to a ______ sequence, melts apart the DNA strands and
initiates ______ - ✔✔promoter, transcription
✔✔RNA polymerase adds deoxynucleotides to the ______ - ✔✔3' -OH of an RNA
polymer
✔✔a particular allele of a gene has suffered a mutation that results in deletion of the
promoter region. Such an allele should be ______ to wildtype - ✔✔recessive
✔✔mRNA - ✔✔"messenger" RNA
*made during transcription*
brings info to the ribosome and ribosome makes the polypeptide
✔✔non-coding RNA - ✔✔doesn't encode proteins
are never translated
, ✔✔rRNA - ✔✔-like an enzyme
-"ribosomal RNA" (made in the ribosome)
-make up the majority of the ribosomes
✔✔tRNA - ✔✔"transfer RNA"
-carries amino acids and brings them to the ribosome so it can make polypeptide chain
*essential for translation of proteins
✔✔T or F
a bacterial mRNA can begin translation before transcription is finished - ✔✔true
✔✔T or F
a bacterial mRNA can be simultaneously translated by multiple ribosomes - ✔✔true
✔✔T or F
a bacterial mRNA can be translated multiple times before its degraded - ✔✔true
✔✔T or F
transcription and translation are uncoupled in eukaryotes since each process must
occur in separate compartments - ✔✔true
✔✔where does translation occur? - ✔✔in the cytoplasm or on the ER
✔✔what does every mRNA coding region start with? - ✔✔AUG start codon
✔✔what are the stop codons? - ✔✔UAG, UAA, UGA
✔✔wobble base pairing - ✔✔pairing between 2 nucleotides in RNA molecules that does
not follow watson-crick base pair rules
-one tRNA can pair with more than one synonymous codon through wobble base
pairing
✔✔what are the three sites that tRNAs matching successive codons are bound to at
any one time? - ✔✔*amino acid site*
*polypeptide site*
*exit site*
✔✔stages of translation:
*initiation* - ✔✔small subunit binds first and finds AUG
