BIOS 3100 Exam 1 questions with
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answers
virulent - CORRECT ANSWERS ✔✔cause disease or death
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Frederick Griffith - CORRECT ANSWERS ✔✔discovered
|\ |\ |\ |\ |\ |\
transformation during an experiment that involved |\ |\ |\ |\ |\ |\
injecting mice with smooth S cells, rough R cells, heat-
|\ |\ |\ |\ |\ |\ |\ |\ |\
killed S cells, and heat-killed S cells with living R cells
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Avery, Macleod, McCarthy - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\
✔✔chemically destroyed major categories of chemicals to |\ |\ |\ |\ |\ |\
see which would lose the ability to transform
|\ |\ |\ |\ |\ |\ |\ |\
discovered that DNA is the genetic material |\ |\ |\ |\ |\ |\
Hershey-Chase Experiment - CORRECT ANSWERS ✔✔were |\ |\ |\ |\ |\
skeptical about DNA being genetic material
|\ |\ |\ |\ |\ |\ |\
used a phage (T2) and gave DNA radioisotope labels
|\ |\ |\ |\ |\ |\ |\ |\
phosphate - CORRECT ANSWERS ✔✔ion formed of four O2
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atoms attached to phosphorus atom
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,deoxyribose - CORRECT ANSWERS ✔✔pentose sugar in |\ |\ |\ |\ |\ |\ |\
the DNA backbone
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nitrogenous bases - CORRECT ANSWERS ✔✔A, C, T, G |\ |\ |\ |\ |\ |\ |\ |\
purine - CORRECT ANSWERS ✔✔chemical with double-
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ring structure
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A, G
|\
pyrimidine - CORRECT ANSWERS ✔✔chemical with single-
|\ |\ |\ |\ |\ |\
ring structure
|\
C, T
|\
nucleotides - CORRECT ANSWERS ✔✔basic building block|\ |\ |\ |\ |\ |\ |\
of nucleic acids--composed of nitrogen base, sugar, and
|\ |\ |\ |\ |\ |\ |\ |\
phosphate group |\
Chargaff's Rules - CORRECT ANSWERS ✔✔T-C = A-G but
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A+T doesn't have to equal G+C
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Rosalind Franklin - CORRECT ANSWERS ✔✔x-rays fired at
|\ |\ |\ |\ |\ |\ |\ |\
DNA fibers and scatter of rays from fibers is observed on
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
photographic film |\
, DNA = long and skinny and has two similar parts that are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
parallel
helical
Double Helix - CORRECT ANSWERS ✔✔3D structure
|\ |\ |\ |\ |\ |\ |\
composed to two strands of nucleotides |\ |\ |\ |\ |\
Watson and Crick |\ |\
2 nucleotide strands held together by h-bonds between
|\ |\ |\ |\ |\ |\ |\ |\
bases of each strand |\ |\ |\
phosphodiester linkages - CORRECT ANSWERS |\ |\ |\ |\ |\
✔✔connects 5'-carbon atom of 1 deoxyribose to 3'-carbon |\ |\ |\ |\ |\ |\ |\
of another
|\ |\
antiparallel configuration |\
stacking - CORRECT ANSWERS ✔✔_________ of base pairs
|\ |\ |\ |\ |\ |\ |\ |\
adds stability of DNA by excluding water molecules from
|\ |\ |\ |\ |\ |\ |\ |\ |\
the spaces |\
G-C - CORRECT ANSWERS ✔✔3 h-bonds
|\ |\ |\ |\ |\
A-T - CORRECT ANSWERS ✔✔2 h-bonds
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|\ |\ |\ |\ |\ |\
answers
virulent - CORRECT ANSWERS ✔✔cause disease or death
|\ |\ |\ |\ |\ |\ |\
Frederick Griffith - CORRECT ANSWERS ✔✔discovered
|\ |\ |\ |\ |\ |\
transformation during an experiment that involved |\ |\ |\ |\ |\ |\
injecting mice with smooth S cells, rough R cells, heat-
|\ |\ |\ |\ |\ |\ |\ |\ |\
killed S cells, and heat-killed S cells with living R cells
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Avery, Macleod, McCarthy - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\
✔✔chemically destroyed major categories of chemicals to |\ |\ |\ |\ |\ |\
see which would lose the ability to transform
|\ |\ |\ |\ |\ |\ |\ |\
discovered that DNA is the genetic material |\ |\ |\ |\ |\ |\
Hershey-Chase Experiment - CORRECT ANSWERS ✔✔were |\ |\ |\ |\ |\
skeptical about DNA being genetic material
|\ |\ |\ |\ |\ |\ |\
used a phage (T2) and gave DNA radioisotope labels
|\ |\ |\ |\ |\ |\ |\ |\
phosphate - CORRECT ANSWERS ✔✔ion formed of four O2
|\ |\ |\ |\ |\ |\ |\ |\
atoms attached to phosphorus atom
|\ |\ |\ |\ |\
,deoxyribose - CORRECT ANSWERS ✔✔pentose sugar in |\ |\ |\ |\ |\ |\ |\
the DNA backbone
|\ |\
nitrogenous bases - CORRECT ANSWERS ✔✔A, C, T, G |\ |\ |\ |\ |\ |\ |\ |\
purine - CORRECT ANSWERS ✔✔chemical with double-
|\ |\ |\ |\ |\ |\
ring structure
|\ |\
A, G
|\
pyrimidine - CORRECT ANSWERS ✔✔chemical with single-
|\ |\ |\ |\ |\ |\
ring structure
|\
C, T
|\
nucleotides - CORRECT ANSWERS ✔✔basic building block|\ |\ |\ |\ |\ |\ |\
of nucleic acids--composed of nitrogen base, sugar, and
|\ |\ |\ |\ |\ |\ |\ |\
phosphate group |\
Chargaff's Rules - CORRECT ANSWERS ✔✔T-C = A-G but
|\ |\ |\ |\ |\ |\ |\ |\ |\
A+T doesn't have to equal G+C
|\ |\ |\ |\ |\
Rosalind Franklin - CORRECT ANSWERS ✔✔x-rays fired at
|\ |\ |\ |\ |\ |\ |\ |\
DNA fibers and scatter of rays from fibers is observed on
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
photographic film |\
, DNA = long and skinny and has two similar parts that are
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
parallel
helical
Double Helix - CORRECT ANSWERS ✔✔3D structure
|\ |\ |\ |\ |\ |\ |\
composed to two strands of nucleotides |\ |\ |\ |\ |\
Watson and Crick |\ |\
2 nucleotide strands held together by h-bonds between
|\ |\ |\ |\ |\ |\ |\ |\
bases of each strand |\ |\ |\
phosphodiester linkages - CORRECT ANSWERS |\ |\ |\ |\ |\
✔✔connects 5'-carbon atom of 1 deoxyribose to 3'-carbon |\ |\ |\ |\ |\ |\ |\
of another
|\ |\
antiparallel configuration |\
stacking - CORRECT ANSWERS ✔✔_________ of base pairs
|\ |\ |\ |\ |\ |\ |\ |\
adds stability of DNA by excluding water molecules from
|\ |\ |\ |\ |\ |\ |\ |\ |\
the spaces |\
G-C - CORRECT ANSWERS ✔✔3 h-bonds
|\ |\ |\ |\ |\
A-T - CORRECT ANSWERS ✔✔2 h-bonds
|\ |\ |\ |\ |\
