BIO 315 EXAM 1 PAST HW AND
QUIZZES QUESTIONS WITH CORRECT
ANSWERS
Ann advantage of light microscopy compared to electron microscopy would be: -
Correct Answers -Analysis of live samples
A cell's genome... - Correct Answers -Contains all of a cell's DNA
What unit of length would you generally use to measure a typical plant or animal cell? -
Correct Answers -Micrometers
Biologists cannot possible study all living species. Instead, they try to understand cell
behavior by studying a select subset of species. Which of the following characteristics
are useful in an organism chosen for use as a model in laboratory studies? - Correct
Answers -amenability to genetic manipulation, ability to grow under controlled
conditions, rapid rate of reproduction
DNA replication is considered semiconservative because... - Correct Answers -each
daughter DNA molecule consists of one strand from the parent DNA molecule and one
new strand
The DNA polymerase enzyme: - Correct Answers -can only add nucleotides to the 3'
end of a new DNA strand AND can synthesize both the leading strand and the lagging
strand
Fred Griffith studied two strains of Streptococcus pneumonia, one that causes a lethal
infection when injected into mice, and a second that is harmless. He observed that
pathogenic bacteria that have been killed by heating can no longer cause an infection.
But when these heat-killed bacteria are mixed with live, harmless bacteria, this mixture
is capable of infecting and killing a mouse. What did Griffith conclude from this
experiment? - Correct Answers -The heat-killed pathogenic bacteria "transformed" the
harmless strain into a lethal one
Which of the following questions would NOT be answered by using karyotyping? -
Correct Answers -Do any chromosomes contain point (single base pair) mutations?
Levels of CDK activity change during the cell cycle, in part because: - Correct Answers -
cyclin concentrations change throughout the cycle
Which of the following statements about the cell cycle is TRUE - Correct Answers -
Cyclin activity is necessary, but not always sufficient, for CDK activation
QUIZZES QUESTIONS WITH CORRECT
ANSWERS
Ann advantage of light microscopy compared to electron microscopy would be: -
Correct Answers -Analysis of live samples
A cell's genome... - Correct Answers -Contains all of a cell's DNA
What unit of length would you generally use to measure a typical plant or animal cell? -
Correct Answers -Micrometers
Biologists cannot possible study all living species. Instead, they try to understand cell
behavior by studying a select subset of species. Which of the following characteristics
are useful in an organism chosen for use as a model in laboratory studies? - Correct
Answers -amenability to genetic manipulation, ability to grow under controlled
conditions, rapid rate of reproduction
DNA replication is considered semiconservative because... - Correct Answers -each
daughter DNA molecule consists of one strand from the parent DNA molecule and one
new strand
The DNA polymerase enzyme: - Correct Answers -can only add nucleotides to the 3'
end of a new DNA strand AND can synthesize both the leading strand and the lagging
strand
Fred Griffith studied two strains of Streptococcus pneumonia, one that causes a lethal
infection when injected into mice, and a second that is harmless. He observed that
pathogenic bacteria that have been killed by heating can no longer cause an infection.
But when these heat-killed bacteria are mixed with live, harmless bacteria, this mixture
is capable of infecting and killing a mouse. What did Griffith conclude from this
experiment? - Correct Answers -The heat-killed pathogenic bacteria "transformed" the
harmless strain into a lethal one
Which of the following questions would NOT be answered by using karyotyping? -
Correct Answers -Do any chromosomes contain point (single base pair) mutations?
Levels of CDK activity change during the cell cycle, in part because: - Correct Answers -
cyclin concentrations change throughout the cycle
Which of the following statements about the cell cycle is TRUE - Correct Answers -
Cyclin activity is necessary, but not always sufficient, for CDK activation
