QUESTION 5 In the Sanger method of DNA sequencing, if a dideoxynucleotide is attached, a synthesising chain will? O a. Grow quicker b. Stop growing O c. Grow slower O d. Hybridise

QUESTION 10 If one strand of DNA reads GGC ATA TGC ACC, what will the complementary strand read? O A. CCG TAT ACG TGG O B. AAT CGC GAT CTT C. TTA GCG CTA GAA O D. CCG UAU ACG UGG

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QUESTION 1 The bacterial repair system that corrects mismatched bases after polymerization is able to discriminate between the old and newly made DNA strands because O A. the new strand will contain the incorrect base if a mismatch occurs. O B. older DNA is more likely to contain errors. OC. older DNA contains methyl groups at specific sequences. O D. newer DNA contains methyl groups at specific sequences. O E. the DNA polymerase is attached to the new strand.

QUESTION 1 A genetically engineered or genetically modified organism (GMO) O A. is an organism that has recently been introduced into a foreign environment. B. is an organism that has genes in it from another organism. OC. is an organism that has mutated due to chemical or radiation exposure. O D. is an organism produced by somatic cell nuclear cloning.

QUESTION 5 If DNA had 5 different bąses, a restriction enzyme with a 3-base recognition sequence would cut DNA approximately every O A 125 bp. O B. 256 bp. O C. 425 bp. O D. 625 bp. O E. 3125 bp.

Question 4 1 pts Original DNA strand: ATT GAG CC Mutated DNA strand: ATT GAG CT What type of mutation does the example above demonstrate? O Substitution O The example above does not demonstrate any mutation at all. Deletion O There is not enough information to determine which type of mutation is demonstrated. O Insertion

Question 2. Bacteria are grown in a medium containing 15NH₂Cl for a number of generations so that all of the DNA is made of fully "heavy" DNA. The bacteria are moved to a new medium and grown in ¹4NH₂Cl so that all new DNA will be "light." After two generation times, what does the DNA look like? A. All of the DNA is made of 2 "light" strands. B. Half of the DNA is made of 2 "light" strands and half of the DNA is made of 1 "light" strand and 1 "heavy" strand. C. All of the DNA is made of 1 "heavy" strand and 1 "light" strand. D. Each strand is made of a mixture of "heavy" and "light" DNA, with each strand being between 75% and 100% "light". A B Multiple Choice с D E

Question 40 Which of the following genetic markers is best used for plant DNA barcoding? O a rbct gene b. cytochrome-b gene C Ribosomal RNA O d. cytochrome c oxidase i (coi) gene

QUESTION 6 PCR cannot be successfully performed without O A. at least 100 starting DNA molecules. O B. at least some sequence information about the region to be amplified. O C.a CDNA version of the region to be amplified. O D. a section of at least 100 kb to amplify. O E. an undamaged, non-degraded DNA sample.