BIMM 100 EXAM 1 questions well
answered already passed
Molecular Biology - correct answer ✔✔ Concerns the molecular basis of biological activity
between biomolecules in a cell, including DNA, RNA, and proteins and their biosynthesis, as well
as the regulation of these interactions
The Central Dogma - correct answer ✔✔ DNA --> RNA --> Protein
DNA --> RNA --> Protein - correct answer ✔✔ Transcription --> Translation --> Replication
Early scientists thought ____ was the cell's hereditary material because it was more complex
than DNA - correct answer ✔✔ Protein
Proteins - correct answer ✔✔ 20 different amino acids
DNA - correct answer ✔✔ 4 different nucleotides
The Bacterial Cell - correct answer ✔✔ -To study DNA, scientists turned to this cell
Bacteria - correct answer ✔✔ -Among the simplest single celled organisms on earth
-Prokaryotic (lack a nucleus and other membrane-bound organelles)
Frederick Griffith (1928) - correct answer ✔✔ -Can a genetic trait be transferred between
different bacterial strains?
, -Took different strains of bacteria, injecting them into mice to figure out what part of the
bacteria was transforming (protein, RNA, or DNA?)
-Mouse survives = you have killed the material that is killing the mouse
-Mixing the heat-killed pathogenic smooth strain with living nonpathogenic rough cell strain
cells killed the mouse
-Living S cells found in Blood Sample
-Mixing the materials generated a bacteria that survived and then killed the mouse
Frederick Griffith Conclusion - correct answer ✔✔ A chemical substance from one cell is
genetically TRANSFORMED into another cell
Avery, McCarthy, and MacLeod (1944) - correct answer ✔✔ -Is the transforming factor DNA or
proteins?
-Prove which material created the phenotype
-Degrading DNA with DNAse = no transformation
-This proved that DNA is the transforming principle
Avery, McCarthy, and MacLeod Conclusion - correct answer ✔✔ Transformation requires DNA,
therefore it is the genetic material of the cell
Transformation - correct answer ✔✔ The genetic alteration of a cell resulting from the direct
uptake and incorporation of exogenous genetic material (exogenous DNA) from its surroundings
through the cell membrane(s)
Genetic Material of a Phage - correct answer ✔✔ -Bacteriophage T2 is a virus that infects and
replicates in bacterium
-Attaches to surface of bacterium and injects DNA into cell
**Immune system adapts
answered already passed
Molecular Biology - correct answer ✔✔ Concerns the molecular basis of biological activity
between biomolecules in a cell, including DNA, RNA, and proteins and their biosynthesis, as well
as the regulation of these interactions
The Central Dogma - correct answer ✔✔ DNA --> RNA --> Protein
DNA --> RNA --> Protein - correct answer ✔✔ Transcription --> Translation --> Replication
Early scientists thought ____ was the cell's hereditary material because it was more complex
than DNA - correct answer ✔✔ Protein
Proteins - correct answer ✔✔ 20 different amino acids
DNA - correct answer ✔✔ 4 different nucleotides
The Bacterial Cell - correct answer ✔✔ -To study DNA, scientists turned to this cell
Bacteria - correct answer ✔✔ -Among the simplest single celled organisms on earth
-Prokaryotic (lack a nucleus and other membrane-bound organelles)
Frederick Griffith (1928) - correct answer ✔✔ -Can a genetic trait be transferred between
different bacterial strains?
, -Took different strains of bacteria, injecting them into mice to figure out what part of the
bacteria was transforming (protein, RNA, or DNA?)
-Mouse survives = you have killed the material that is killing the mouse
-Mixing the heat-killed pathogenic smooth strain with living nonpathogenic rough cell strain
cells killed the mouse
-Living S cells found in Blood Sample
-Mixing the materials generated a bacteria that survived and then killed the mouse
Frederick Griffith Conclusion - correct answer ✔✔ A chemical substance from one cell is
genetically TRANSFORMED into another cell
Avery, McCarthy, and MacLeod (1944) - correct answer ✔✔ -Is the transforming factor DNA or
proteins?
-Prove which material created the phenotype
-Degrading DNA with DNAse = no transformation
-This proved that DNA is the transforming principle
Avery, McCarthy, and MacLeod Conclusion - correct answer ✔✔ Transformation requires DNA,
therefore it is the genetic material of the cell
Transformation - correct answer ✔✔ The genetic alteration of a cell resulting from the direct
uptake and incorporation of exogenous genetic material (exogenous DNA) from its surroundings
through the cell membrane(s)
Genetic Material of a Phage - correct answer ✔✔ -Bacteriophage T2 is a virus that infects and
replicates in bacterium
-Attaches to surface of bacterium and injects DNA into cell
**Immune system adapts
