Bio 99: Molecular Biology Questions With Complete
Solutions
A deoxyribonucleotide is composed of (select all that apply):
Correct Answers Pentose with 3' OH
Phosphate group
Nitrogenous base
Avery found that DNA was necessary and sufficient for
bacterial transformation. Which of the following experimental
results support this statement? Select all that apply Correct
Answers -Removal of DNA from cell extracts prevented
transformation
-DNA alone will cause transformation to occur
Choose the answer that has the information flow of the central
dogma in the correct order. Correct Answers DNA,
transcription, RNA, translation, protein
Chromatin consists of: Correct Answers DNA and protein
Cystic fibrosis is caused by nonsense and missense mutations in
the CFTR gene, which encodes for a chloride channel. You are
studying cystic fibrosis patients to determine what mutation they
possess in the CFTR gene. The difference between the mutant
and wild type CFTR genes can be uncovered by examining the
CFTR: Correct Answers DNA
mRNA
protein
, DNA/RNA is the less stable molecule because: Correct Answers
RNA, because it has a 2'OH group
Each nucleosome contains: Correct Answers A histone octamer
composed of two copies of each of the following proteins: H2A,
H2B, H3 and H4.
Genomics is the field dedicated to the study of: Correct Answers
DNA on a cellular scale.
Griffith and Avery's transformation experiments allowed us to
identify that DNA is our genetic information. Which of the
following scenarios would result in bacterial cells that are
capable of killing mice upon injection? Select all that apply.
Correct Answers Heat killed non-virulent bacteria is added to a
live virulent bacteria strain.
Hershey and Chase's experiment demonstrated that DNA is the
hereditary information. Which experimental result allowed them
to conclude this? Correct Answers Radioactive phosphorus was
found in the bacterial pellets.
Imagine Hershey/Chase had used an RNA virus (genome
composed of RNA) instead of a DNA virus in their experiment.
Would radioactivity still have been found in the pellet? Correct
Answers Yes, because DNA and RNA nucleotides are similar.
In the following pathway, mutation of enzyme II would result in
the accumulation of __________ and the mutant would require
__________ in the media in order to grow. Correct Answers
ornithine, citrulline
Solutions
A deoxyribonucleotide is composed of (select all that apply):
Correct Answers Pentose with 3' OH
Phosphate group
Nitrogenous base
Avery found that DNA was necessary and sufficient for
bacterial transformation. Which of the following experimental
results support this statement? Select all that apply Correct
Answers -Removal of DNA from cell extracts prevented
transformation
-DNA alone will cause transformation to occur
Choose the answer that has the information flow of the central
dogma in the correct order. Correct Answers DNA,
transcription, RNA, translation, protein
Chromatin consists of: Correct Answers DNA and protein
Cystic fibrosis is caused by nonsense and missense mutations in
the CFTR gene, which encodes for a chloride channel. You are
studying cystic fibrosis patients to determine what mutation they
possess in the CFTR gene. The difference between the mutant
and wild type CFTR genes can be uncovered by examining the
CFTR: Correct Answers DNA
mRNA
protein
, DNA/RNA is the less stable molecule because: Correct Answers
RNA, because it has a 2'OH group
Each nucleosome contains: Correct Answers A histone octamer
composed of two copies of each of the following proteins: H2A,
H2B, H3 and H4.
Genomics is the field dedicated to the study of: Correct Answers
DNA on a cellular scale.
Griffith and Avery's transformation experiments allowed us to
identify that DNA is our genetic information. Which of the
following scenarios would result in bacterial cells that are
capable of killing mice upon injection? Select all that apply.
Correct Answers Heat killed non-virulent bacteria is added to a
live virulent bacteria strain.
Hershey and Chase's experiment demonstrated that DNA is the
hereditary information. Which experimental result allowed them
to conclude this? Correct Answers Radioactive phosphorus was
found in the bacterial pellets.
Imagine Hershey/Chase had used an RNA virus (genome
composed of RNA) instead of a DNA virus in their experiment.
Would radioactivity still have been found in the pellet? Correct
Answers Yes, because DNA and RNA nucleotides are similar.
In the following pathway, mutation of enzyme II would result in
the accumulation of __________ and the mutant would require
__________ in the media in order to grow. Correct Answers
ornithine, citrulline
