BIO 315 Exam 1 Review 2026/2027 | High-
Yield Study Guide | Questions & Answers
Ann advantage of light microscopy compared to electron microscopy would be: -
correct answer-Analysis of live samples
A cell's genome... - correct answer-Contains all of a cell's DNA
What unit of length would you generally use to measure a typical plant or animal
cell? - correct answer-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 answer-amenability to genetic manipulation, ability to grow
under controlled conditions, rapid rate of reproduction
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 answer-The heat-killed
pathogenic bacteria "transformed" the harmless strain into a lethal one
Yield Study Guide | Questions & Answers
Ann advantage of light microscopy compared to electron microscopy would be: -
correct answer-Analysis of live samples
A cell's genome... - correct answer-Contains all of a cell's DNA
What unit of length would you generally use to measure a typical plant or animal
cell? - correct answer-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 answer-amenability to genetic manipulation, ability to grow
under controlled conditions, rapid rate of reproduction
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 answer-The heat-killed
pathogenic bacteria "transformed" the harmless strain into a lethal one
