The identification of a stop codon for a particular gene is anexample ofa. sequence recognition.b. pattern recognition.c. both a and b.d. none of the above.
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The identification of a stop codon for a particular gene is an
example of
a. sequence recognition.
b. pattern recognition.
c. both a and b.
d. none of the above.
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- A promoter is ______. a. a specific sequence of DNA nucleotides b. a specific sequence of RNA nucleotides c. a protein that binds to DNA d. an enzyme that synthesizes RNAThe function of the genetic code is toa. promote transcription.b. specify the amino acids within a polypeptide.c. alter the sequence of DNA.d. do none of the above.a. Give the sequence of mRNA that would be transcribed off of the bottom strand and label its 5' and 3' ends. b. translate this RNA sequence in 1a into a protein sequence c. Give the sequence of mRNA that would be transcribed off of the top strand and label its 5' and 3' ends. d. Translate this RNA sequence in 1c into a protein sequence
- Which of the following is the definition of a gene? A. RNA that delivers amino acids to a ribosome during translation B. A unit of information encoded in the sequence of nucleotide bases in DNA C. The RNA component of ribosomes D. RNA that carries a protein-building messageMissense mutations a create premature stop codons b cause no change in a gene product c change the amino acid sequence of a polypeptide d none of the aboveIn gene silencing, the “dicer” enzymea. assembles siRNAs into a RISC complex.b. unwinds the RISC complex.c. binds siRNA to mRNA sequences complementary to it.d. slices up double-stranded RNA molecules
- Which of the following is/are a role for the poly-A tail? (Select all that apply.) a) Facilitates transport of the transcript out of the nucleus b) Confers stability to the mRNA c) Binds to RNA polymerase to initiate transcription d) Facilitates binding to DNADuring translation, ____________ is the step in which new t-RNA is attracted to the ribosome (a) the formation of the open promoter complex (b) codon recognition (c) peptide bond formation (d) translocation (e) none of the aboveWhat is the genetic code? a. The relationship between a three-base codon sequence and an amino acid or the end of translation b. The entire base sequence of an mRNA molecule c. The entire sequence from the promoter to the terminator of a gene d. The binding of tRNA to mRNA
- The anticodon … A. is complementary to the mRNA B. is found on the ribosome C. is found on the tRNA D. A and C_______is/are removed from a new mRNA. a. Introns c. A poly-A tail b. Exons d. Amino acidsProteomics is used to discovera. what genes are active in what cells.b. what proteins are active in what cells.c. the structure and function of proteins.d. how proteins interact.e. All except a are correct.
