double checking! C The amino terminal signal sequence for this particular protei

Question

double checking!

C The amino terminal signal sequence for this particular protein is missing D. The ribosomes in this cell are defective 31. The Ames test is able to quantify the mutagenic activity of a chemical by monitoring the frequency of back mutation (reversion) in hisG mutant strains of bacteria. In the Ames test, cell with agar plates that are prepared )-media lacking histidine B) media containing histidine. C) Complex media containing very high concentrations of all nutrients and special growth factors required for bacterial replication. D) None of the above 32. Which of the following statements regarding bacterial defenses against phage infections is FALSE? Bacterial restriction endonucleases can eleave viral mRNA and thereby prevent viral replication B. Viral sequences incorporated into the clustered, regularly interspaced short palindromic repeats locus facilitate cleavage of specific phage DNA. Bacterial restriction endonuclease system cleaves DNA lacking appropriate methylation patterns. D. Resistance to phages can occur through altered host receptor proteins. 33, /The thermal stability of the DNA helix is predominantly due to the of the hydrophobic base pairs. A/ attraction binding C. repulsion and hydrogen bonding D) stacking and hydrogen bonding transformation 34. The genetic code of all known organisms has codons consisting of three nucleotides. If a life form were to be found that had codons consisting of 5 nucleotides, how many potential reading frames would the mRNA of that organism possess? A. One B. Two C. Three D. Four E. Five 2nd Base 2 RNA Amino RNA Amino RNA Amino RNA Amino codon acid codon acid codon acid codon acid UUU Phe UCU Ser UAU yr UGU Cys UUA Leu UCA SerUAA Stop UGA Stop UUG Leu UCG Ser UAG StopUGG Trp CUU Leu CCU ProCAU His CGU Arg CUC Leu CCC ProCAC His CGC Arg CUA Leu CCA Pro CA A Gin CGA Arg CUG Leu CCG Pro CAG Gin CGG Arg AUU lle ACU Thr AA Asn AGU Ser A UC lle ACC Thr AAC Asn AGC Ser AUA le ACA ThrAA A Lys AGA Arg 35. The equence 5'- CUGAUGUAACGUAGGAUCU-3' is found to be associated with a long open reading frame. This sequence can only be found 1st Base A.) in the termination region. in the initiation region C. anywhere in the open reading frame. D. none of the above AUG Met ACG Thr AAG L AGG Arg GUU Val GCU Ala GAU Asp GGU Gly GUC Val GCC Ala GAC Asp GGC Gly GUA Val GCA Ala GAA Glu GGA Gly GUG Val GCG Ala GAG Glu GGG Gly

Explanation / Answer

The answers to the above questions of yours as crosschecking is:-

31.a

32.b

33.d

34.d

35.a

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