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Biol 243 online quiz Question and answers latest update
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Biol 243 online quiz Question and answers latest update
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Biol 243 online quiz questions Using Chargaff's rules, you can determine that the DNA of an organism that contains 10% cytosine would contain ____________adenine. A) 20% B) 30% C) 40% D) 60% E) 70% - correct answer c If protease treatment in Avery et al.'s experiment only prevented the transformation of bacteria, what would have been the conclusion of these researchers? A) RNA is the genetic/hereditary material. B) DNA is the genetic/hereditary material. C) Proteins are the genetic/hereditary materials. D) Proteins and RNA are the genetic/hereditary materials. E) Proteins and DNA are the genetic/hereditary materials. - correct answer c In the DNA sequence 5' -TGAC -3', the phosphodiester linkage between the guanine and the adenine connect: A) the 3' end of the guanine to the 5' end of the adenine. B) the 5' end of the guanine to the 1' end of the adenine. C) the 3' end of the adenine to the 5' end of the guanine. D) the 5' end of the guanine to the 2' end of the adenine. E) the 2' end of the adenine to the 3' end of the guanine. - correct answer a The two strands of the DNA can be denatured or separated by breaking the A) Peptide bonds B) Ionic bonds C) Hydrogen bonds D) Phosphodiester bonds E) Metallic bonds - correct answer c Which of the following is NOT part of the Watson -Crick model of the structure of DNA? A) Base pairing occurs in the interior of the DNA molecule which is hydrophobic B) Purines bind to pyrimidines C) Complementary base pairing allows DNA to form a long polymer D) The two DNA strands have antiparallel orientation E) DNA forms a double helix - correct answer c DNA is wrapped around histones, which contain many copies of the positive amino acids lysine and arginine. These positive amino acids neutralize the negative charge of the ______________ of the DNA wrapped around the histone. A) ribose sugar B) hydroxyl group C) nitrogenous base D) phosphate group E) All of the answer options are correct. - correct answer d Arrange the following genetic terms in order from smallest to largest. A) Genome, gene, nucleotide, nucleoside B) Gene, nucleotide, genome, nucleoside C) Nucleoside, nucleotide, gene, genome D) Nucleotide, nucleoside, gene, genome E) Nucleoside, nucleotide, genome, gene - correct answer c Which one of the following is not true of genes? A) Are made of deoxyribonucleotides B) Part of the genome that produces RNA molecules C) Only codes for proteins D) Are found on chromosomes and plasmids in prokaryotes E) Functional unit of hereditary - correct answer c Which type of molecule is adenosine? A) Nitrogenous base B) Deoxyribonucleotide C) Ribonucleotide D) Ribonucleoside E) Purine - correct answer d Integrase is an enzyme that functions to insert the viral genome into the host chromosome. The most likely outcome as a result of treating bacteriophages with an integrase inhibitor is: A) Higher rate of infection B) Increased circularization of viral DNA C) Lower rate of lysogeny D) Elimination of the lytic cycle E) Higher content of viral DNA in the host genome - correct answer c The distinct phenotypes exhibited between two siblings are due to different: A) Alleles B) Gene Expression C) GenotypesThe benefits of buying summaries with Stuvia:
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