Georgia Military College BIO 123 Molecular Biology of Inheritance Quiz: Grade 8.67 out of 10.00 (87%)

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Home / My courses / 19WNCMP BIO-123-20103 / Week 7 / Molecular Biology of Inheritance Quiz Started on Saturday, March 2, 2019, 4J56 AM State Finished Completed on Saturday, March 2, 2019, 5J15 AM ... Time taken 19 mins 34 secs Marks 13.00/15.00 Grade 8.67 out of 10.00 (87%) Question 1 Correct Question 2 Incorrect Mark 0.00 out of 1.00 As a result of semiconservative DNA replication what does each new double helix strand have? Select one: a. three new strands in one helix and three old strands in the second helix b. one new strand and one old strand in each helix ! c. two new strands and two old strands in each helix d. two new and one old strand in one helix and two old and one new in the second helix e. only new strands in each helix Which of the following is true about DNA but not RNA? Select one: a. RNA transfers messages from DNA to ribosomes b. RNA contains the sugar ribose c. RNA is single stranded " d. RNA contains adenine, guanine, uracil, and cytosine http://gmc.mrooms3.net/mod/quiz/review.php?attempt=2134187&cmid=3004814 3/11/19, 4D32 PM Page 1 of 7 Question 3 Correct Question 4 Correct What does "A" represent in the figure of DNA replication? Select one: a. the parental DNA region b. the replication region c. the completed DNA region d. the new strand e. the template strand ! What is the error rate in the DNA replication process, for eukaryotes? Select one: a. one in 1 billion nucleotides ! b. one in 1 hundred nuclotides c. one in 1 thousand nucleotides http://gmc.mrooms3.net/mod/quiz/review.php?attempt=2134187&cmid=3004814 3/11/19, 4D32 PM Page 2 of 7 Question 5 Correct Question 6 Correct Question 7 Correct c. one in 1 thousand nucleotides d. one in 10,000 nucleotides e. one in 1 million nucleotides If 23% of a species' DNA contains cytosine, how much thymine is in this species' DNA? Select one: a. 44% b. 27% ! c. 23% d. 25% e. 46% Which nucleotide is found in DNA but not RNA? Select one: a. guanine b. uracil c. thymine ! d. adenine e. cytosine http://gmc.mrooms3.net/mod/quiz/review.php?attempt=2134187&cmid=3004814 3/11/19, 4D32 PM Page 3 of 7 Question 8 Correct Question 9 Correct Which of the following best describes the components of a nucleotide? Select one: a. a phosphate and a hexose sugar b. a phosphate and a pentose sugar c. a nitrogen-containing base and a pentose sugar d. a nitrogen-containing base, a phosphate, and a hexose sugar e. a nitrogen-containing base, a phosphate, and a pentose sugar ! What characteristic of the DNA structure allows genetic variability? Select one: a. All organisms follow Chargaff's rules of A =T and G =C b. The bases connected to the sugar-phosphate backbone can be in any order ! c. The nucleotides are joined and produces a sugar-phosphate backbone d. There are 4 different nucleotide building blocks e. There is complementary base pairing between the two strands Which of the following is indirectly important for translation? Select one: a. mRNA b. rRNA c. tRNA-amino acid complex d. DNA ! e. Ribosome http://gmc.mrooms3.net/mod/quiz/review.php?attempt=2134187&cmid=3004814 3/11/19, 4D32 PM Page 4 of 7 Question 10 Correct Question 11 Incorrect Mark 0.00 out of 1.00 Question 12 Correct The molecule that carries genetic information from the nucleus to the area of protein synthesis is _(blank) _. Select one: a. RNA polymerase b. rRNA c. mRNA ! d. DNA polymerase e. Trna What enzyme unzips and unwinds the original molecule of DNA during DNA replication? Select one: a. DNA polymerase " b. DNA ligase c. helicase d. DNA primer e. RNA polymerase What portion of a tRNA molecule binds to the codon of an mRNA molecule? Select one: a. promoter site http://gmc.mrooms3.net/mod/quiz/review.php?attempt=2134187&cmid=3004814 3/11/19, 4D32 PM Page 5 of 7 Correct b. amino acid binding site c. RNA polymerase d. anticodon ! e. DNA sequence Which of the following statements about ribosomes is not true? Select one: a. Several ribosomes attached together are called a multiribosome b. The ribosome has a binding site for amino acids c. The ribosome is made up of three subunits ! d. Protein synthesis occurs at the ribosome e. The ribosome has a binding site for mRNA What is the correct pairing for nitrogenous bases? Select one: a. adenine-uracil; guanine-cytosine b. adenine-cytosine; guanine-thymine c. adenine-thymine; guanine-cytosine ! d. adenine-adenine; guanine-guanine e. adenine-guanine; thymine-cytosine Correct All of the following statements are true of a frameshift mutation except _(blank) _. Select one: a. They can be caused by the addition of a nucleotide b. They occur most often of all mutations c. They can be caused by the deletion of a nucleotide d. They cause nonfunctional proteins to form e. They only affect one codon ! [Show More]

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