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Quiz Mastery Questions Chapter 9 Question 1: Most genes come in alternative forms called: (see full question) Correct response: alleles. Question 2: Correct response: Which of the following nucleotide bases are present in equal amounts in DNA? Both a) and c) are correct. Question 3: In a molecule of DNA: (see full question) (see full question) You selected: Correct All of the above are true of a molecule of DNA. Question 4: Tandemly repeated regions of the genome tend to be easily deleted or duplicated due to: B) and C) only (see full question) You selected: Question 5: (see full question) You selected: Correct Question 1: (see full question) You selected: Question 2: Which of the following statements about DNA replication are correct? Only a) and c) are correct. Which of the following is NOT required for DNA replication? All of the above are required for DNA replication. In mismatch repair: (see full question) You selected: Both a) and b) are correct answers. Question 3: An organism cultured from a single cell of another organism that is genetically identical to the other organism is called: a clone. (see full question) You selected: Question 4: (see full question) You selected: Question 5: (see full question) You selected: In the semiconservative model of DNA replication the newly synthesized DNA molecule is comprised of: one old strand and one new one. A mutation that involves the addition, subtraction, or substitution of a single base is known as: a point mutation. Question 1: (see full question) You selected: Question 2: (see full question) You selected: Question 3: In any DNA molecule, the number of guanine bases will: always be equal to the number of cytosine bases. Thermus aquaticus is a bacterium that lives at very high temperatures. The T. aquaticus DNA polymerase is used in the polymerase chain reaction because: the T. aquaticus DNA polymerase can withstand the high temperatures of the polymerase chain reaction. You selected: Correct Which of the following nucleotide bases are present in equal amounts in DNA? Both a) and c) are correct. A-T, C-G Question 4: In semiconservative replication: (see full question) (see full question) You selected: Correct Both a) and b) are correct answers. Question 5: Mutation rates: afteroneroundofreplicationeachnewdoublestrandedDNAmolecule consistsofoneparentalandonedaughterstrand. eachparentalstrandprovidesatemplatethatattractscomplementary bases. (see full question) You selected: Question 1: (see full question) You selected: can be affected by environmental factors. Question 2: Chargaff's rule states: Most genes come in alternative forms called: alleles. (see full question) You selected: Correct Only a) and b) are correct. Question 3: In which of the following examples has the technique of PCR NOT been beneficial? In making orange juice. During replication, DNA polymerase catalyses the formation of a phosphodiester bond between the 3' functional group and the 5' functional group. Which of these functional (see full question) You selected: Question 4: (see full question) thatthenumberofpurinesequalsthenumberofpyrimidines. A=T You selected: Question 5: (see full question) You selected: Question 1: (see full question) groups is located on the elongating strand? the 3' OH The structure of the double helix is so stable due to the proper arrangement of the bases that reach out from the backbone on either strand. order In for this arrangement to work, the two strands must lie _____________ each other. antiparallel to Most genetic diseases result from mutations that cause a gene to produce a nonfunctioning ______________, which in turn blocks the functioning of a metabolic pathway. You selected: enzyme Question 2: You selected: A mutation that involves the addition, subtraction, or substitution of a single base is known as: a point mutation. Question 3: Which of the following is NOT true about DNA? (see full question) (see full question) You selected: Humans lack DNA in their brain cells. Question 4: A person's unique DNA is carried within some of the cells and tissues of their body. These include all of the following EXCEPT: All of the above contain a person's DNA. (see full question) You selected: Question 5: (see full question) Correct response: Question 1: (see full question) You selected: Question 2: (see full question) You selected: Considering the principle of complementary base pairing, you would expect an equal ratio of which two nitrogenous bases in a DNA molecule? cytosine and guanine A single strand of DNA has: a 5 end, which consists of a carbon attached to a phosphate group, and a 3 end, which consists of a carbon attached to a hydroxyl group. You are a geneticist working in a laboratory. You want to splice apart the bonds between the different nitrogen bases while leaving the backbone intact. What type of chemical would you use for this experiment? A chemical that breaks hydrogen bonds. Question 3: (see full question) You selected: Question 4: (see full question) You selected: Question 5: (see full question) Correct response: Question 1: (see full question) You selected: Question 2: (see full question) You selected: Question 3: (see full question) You selected: Question 4: (see full question) You selected: Question 5: (see full question) You selected: Which of the following nucleotide bases are present in equal amounts in DNA? guanine and cytosine Kary Mullis won the Nobel Prize for his creation of a powerful technique that revolutionized the molecular genetics and biotech fields. What is the name of his creation? Polymerase Chain Reaction Sources of genetic variation for evolution include all of the following EXCEPT: errors in DNA translation. The Russian-American biochemist Phoebus Levene was the first to determine that nucleotides may contain one of four different nitrogen-containing bases. Levene believed that the nitrogen-containing bases occurred in equal amounts in DNA. What is the actual proportion of these bases? DNA contains equal amounts of adenine and thymine, and equal amounts of guanine and cytosine. DNA polymerase is a very important enzyme in DNA replication. What is its complete function(s)? To remove the RNA primer, replace it with the correct DNA bases, excising any mismatched bases and replace it with correct ones. DNA is now often used as evidence in criminal trials. It is particularly useful because it can be found in: All of the above are correct. DNA replication is "semiconservative." This means that the replication of one double strand of DNA results in: two double strands, each of which is composed of one strand of the original DNA and one strand of newly synthesized DNA. In Tay-Sachs disease, individuals inherit genes with a mutation that causes an inability to produce ______________________ in their lysosomes. a lipid-digesting enzyme ... View Full Document

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