A growth on solution ii plates is comparable to

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A. Growth on solution II plates is comparable to growth on the control plates. B. All solutions stimulate an increase in the rate of bacterial growth C. E- coli cells are not affected by solution IV D. Solution III dissolves the cell wall of bacterial cells
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E. Solution I is one – half the concentration of solution II 56- 59 refer to the following mRNA codon and their respective amino acid: A. AUG (met) B. UAA (stop) C. UGG (trp) D. GGG (ala) E. UUU (phe) 56. The corresponding DNA nucleotide sequence 57. This is the codon that no additional amino acid to be added to a growing polypeptide 58. This is the start codon for the beginning of the polypeptide chain 59. The corresponding tRNA anticodon is AAA 60. A function of transfer RNA is to a. receive the genetic information from the nuclear DNA b. store the genetic information in the nucleus c. store RNA in the ribosome d. Transfer the genetic information from the nucleus to the cytoplasm e. position amino acids for protein synthesis by pairing with codons in messenger RNA 61. If the plasmid above were tested with restriction enzymes X and Y to completion, what would be the length of the resulting DNA segments? a. 1200 bp, 4000bp, 6000bp only b. 7200 bp, 10000bp, 11200bp only c. 1200bp, 6000bp, 7200 bp, 11,200 bp only d. 11,200 only e. 1200 bp, 4000bp, 6000 bp, 5200 bp, 7200bp, 10000bp, 11200 bp. 62. Restriction enzymes can be used as tools to move specific segments of DNA from one plasmid to another. Which of the following enables the specific DNA segment to be inserted into the new plasmid? a. complementary ends produced by the enzymes b. Replacement of thymine with uracil in DNA c. Adding ATP to the restriction digest incubations d. poly-A tails of newly replicated proteins e. Adding reverse transcriptase 63- 65 a. transcription b. Translation c. RNA processing d. DNA replication e. Meiosis 63. Involves the use of ribosomes, tRNA and mRNA to produce a polypeptide product. 64. Results in four haploid gametes 65. This process includes the use of snRNA and other associated protein 67. The human genome is estimated to contain 30 000 expressed genes. This means that there are approximately 30 000 a. Chromosomes in each human cell b. DNA molecules in each human cell c. different proteins possible in a human d. copies of one gene e. nucleotide base pairs in human DNA 68 .According to the current understanding of the human genome, Which of the following is true of most human genes? a. They have only two possible alleles b. They are dominant c. They have no harmful variants d. They are not unique for our species e. Their DNA codes for structural protein 69. If a microneedle is used to break the spindle fibers that attach a metaphase chromosome to one pole of the spindle, the chromosome moves toward the opposite pole for a short time. When new spindle fiber reattach to the
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chromosome, it reverses direction and become aligned in the middle of the cell once again. This observation provides evidence that a. Cytokinesis doesn’t occur until all the chromosomes have separated b. The nuclear membrane must break down from the spindle fiber to attach to the chromosomes c. mitosis uses ATP as an energy source to move
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