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GENETICS 466
EXAM 1
NAME (printed clearly):_______________________________________________
10 DIGIT STUDENT ID NUMBER: ______________________________________
Points possible by page number:
Page 2 ____________/18
Page 3 ____________/18
Page 4 ____________/17
Page 5 ____________/11
Page 6 ____________/18
Page 7 _____________/18
Total Points: __________/ 100 points
Instructions: Fill out the information on this cover sheet and check to be sure your exam has 4 pages (front and
back) and 25 questions. Feel free to raise your hand in you have questions during the exam. Please write your name on all pages.
Version AExam 1 genetics portage learning 2023 complete study guide Name: _______________________________________________________
Multiple Choice (3 points each)
____D_ 1. Which of the following statements is FALSE concerning prokaryotic cells?
a.They lack a nuclear membrane.
b.They lack organelles such as chloroplasts.
c.They are less complex than eukaryotic cells.
d.They lack genetic information.
e.They lack a true nucleus.
____C_ 2. In order to be functional, a eukaryotic chromosome requires all of the following EXCEPT:
a.A centromere.
b.Origins of replication.
c.A centrosome.
d.Telomeres.
___C__ 3. Alfred Hershey and Martha Chase examined transformation using bacteriophage (bacterial DNA virus) and bacterial cells. If phage are labeled with radioactive phosphate and allowed to infect bacterial cells, the radioactive phosphate will be localized to:
a.newly synthesized phage viruses in the host bacterial cell.
b.the outside of infected cells (in phage ghosts).
c.The inside of infected cells (in phage DNA).
d.No radioactivity will remain after infection.
e.The phosphate will be metabolically consumed, and therefore the radioactivity will be destroyed.
___D__ 4. How do DNA and RNA differ?
a.DNA is composed of repeating units called nucleotides, while RNA is composed of repeating units called amino acids.
b.DNA is composed of repeating units called amino acids, while RNA is composed of repeating units called nucleotides.
c.In DNA the nucleotides contain a sugar, a base, and a phosphate, while in RNA the nucleotides contain no sugar.
d.DNA contains the nitrogenous base thymine while RNA contains the base uracil instead of thymine.
e.DNA contains the nitrogenous base guanine, while RNA contains the base cytosine instead of guanine.
___D__ 5. If a deletion occurs in a gene that encodes DNA polymerase I and no functional DNA polymerase I is produced, what will be the MOST likely consequence of this mutation?
a.The DNA will not be able to unwind to initiate replication.
b.There would be no RNA primers laid down.
c.The DNA would not exist in a supercoiled state.
d.The DNA strands would contain pieces of RNA.
e.There would be no DNA replication on the leading or lagging strands.
___C__ 6. Which of the following statements is TRUE regarding transcription in most organisms?
a.All genes are transcribed from the same strand of DNA.
b.Both DNA strands are used to transcribe a single gene.
c.Different genes may be transcribed from different strands of DNA.
d.The DNA template strand is used to encode double-stranded RNA.
e.The DNA nontemplate strand is used to encode single-stranded RNA.
GENETICS 466
EXAM 1
NAME (printed clearly):_______________________________________________
10 DIGIT STUDENT ID NUMBER: ______________________________________
Points possible by page number:
Page 2 ____________/18
Page 3 ____________/18
Page 4 ____________/17
Page 5 ____________/11
Page 6 ____________/18
Page 7 _____________/18
Total Points: __________/ 100 points
Instructions: Fill out the information on this cover sheet and check to be sure your exam has 4 pages (front and
back) and 25 questions. Feel free to raise your hand in you have questions during the exam. Please write your name on all pages.
Version AExam 1 genetics portage learning 2023 complete study guide Name: _______________________________________________________
Multiple Choice (3 points each)
____D_ 1. Which of the following statements is FALSE concerning prokaryotic cells?
a.They lack a nuclear membrane.
b.They lack organelles such as chloroplasts.
c.They are less complex than eukaryotic cells.
d.They lack genetic information.
e.They lack a true nucleus.
____C_ 2. In order to be functional, a eukaryotic chromosome requires all of the following EXCEPT:
a.A centromere.
b.Origins of replication.
c.A centrosome.
d.Telomeres.
___C__ 3. Alfred Hershey and Martha Chase examined transformation using bacteriophage (bacterial DNA virus) and bacterial cells. If phage are labeled with radioactive phosphate and allowed to infect bacterial cells, the radioactive phosphate will be localized to:
a.newly synthesized phage viruses in the host bacterial cell.
b.the outside of infected cells (in phage ghosts).
c.The inside of infected cells (in phage DNA).
d.No radioactivity will remain after infection.
e.The phosphate will be metabolically consumed, and therefore the radioactivity will be destroyed.
___D__ 4. How do DNA and RNA differ?
a.DNA is composed of repeating units called nucleotides, while RNA is composed of repeating units called amino acids.
b.DNA is composed of repeating units called amino acids, while RNA is composed of repeating units called nucleotides.
c.In DNA the nucleotides contain a sugar, a base, and a phosphate, while in RNA the nucleotides contain no sugar.
d.DNA contains the nitrogenous base thymine while RNA contains the base uracil instead of thymine.
e.DNA contains the nitrogenous base guanine, while RNA contains the base cytosine instead of guanine.
___D__ 5. If a deletion occurs in a gene that encodes DNA polymerase I and no functional DNA polymerase I is produced, what will be the MOST likely consequence of this mutation?
a.The DNA will not be able to unwind to initiate replication.
b.There would be no RNA primers laid down.
c.The DNA would not exist in a supercoiled state.
d.The DNA strands would contain pieces of RNA.
e.There would be no DNA replication on the leading or lagging strands.
___C__ 6. Which of the following statements is TRUE regarding transcription in most organisms?
a.All genes are transcribed from the same strand of DNA.
b.Both DNA strands are used to transcribe a single gene.
c.Different genes may be transcribed from different strands of DNA.
d.The DNA template strand is used to encode double-stranded RNA.
e.The DNA nontemplate strand is used to encode single-stranded RNA.
