biochemistry review overview of biomoleculesmed.fau.edu/students/md_m1_orientation/chapter10.pdfdna...
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![Page 1: BIOCHEMISTRY REVIEW Overview of Biomoleculesmed.fau.edu/students/md_m1_orientation/Chapter10.pdfDNA vs RNA DNA RNA deoxyribose ribose A, C, G, T A, C, G, U 103 –108 nucleotides 102](https://reader033.vdocuments.mx/reader033/viewer/2022043023/5f3f1adcf6406c787c7d849d/html5/thumbnails/1.jpg)
BIOCHEMISTRY REVIEW
Overview of Biomolecules
Chapter 10
Nucleic Acids
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DNA vs RNA
DNA RNA
deoxyribose ribose
A, C, G, T A, C, G, U
103 – 108 nucleotides 102 – 104 nucleotides
nucleus cytoplasm
double-stranded single-stranded
one type/ 1-2 copies many types/ many copies
permanent temporary
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Are You Getting It??
____________________________________________________
____________________________________________________
Which properties are shared by DNA and RNA?
(multiple answers)
a) Both contain the same sugar.
b) Both contain the same purines.
c) Both contain the same pyrimidines.
d) Both are negatively charged in the cell.
e) Both contain phosphodiester bonds.
f) Both have a sugar-phosphate backbone.
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Are You Getting It??
____________________________________________________
______________________Answer________________________
Which properties are shared by DNA and RNA?
a) Both contain the same sugar.
b) Both contain the same purines.
c) Both contain the same pyrimidines.
d) Both are negatively charged in the cell.
e) Both contain phosphodiester bonds.
f) Both have a sugar-phosphate backbone.
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Are You Getting It??
____________________________________________________
____________________________________________________
Which forces contribute to the stability of a double-helix?
(multiple answers)
a) H-bonds
b) N-glycosidic bonds
c) base-stacking
d) phosphodiester bonds
e) hydrophobic interactions
f) covalent bonds
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Are You Getting It??
____________________________________________________
_______________________Answer_______________________
Which forces contribute to the stability of a double-helix?
a) H-bonds
b) N-glycosidic bonds
c) base-stacking
d) phosphodiester bonds
e) hydrophobic interactions
f) covalent bonds
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Are You Getting It??
____________________________________________________
____________________________________________________
Which can occur when the DNA strand
5’AATTCCGGAATTCC3’ forms a double-helix?
(multiple answers)
a) The complementary strand is 5’TTAAGGCCTTAAGG3’.
b) The complementary strand is 5’GGAATTCCGGAATT3’.
c) A more stable helix is formed by 5’CCGGCCAATTGGCC3’.
d) A more stable helix is formed by 5’AATTAAGGAATTAA3’.
e) The helix can be either left-handed or right-handed.
f) The helix has both hydrophilic parts and hydrophobic parts.
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Are You Getting It??
____________________________________________________
_______________________Answer_______________________
Which of the following can occur when the DNA strand
5’AATTCCGGAATTCC3’ forms a double-helix?
a) The complementary strand is 5’TTAAGGCCTTAAGG3’.
b) The complementary strand is 5’GGAATTCCGGAATT3’.
c) A more stable helix is formed by 5’CCGGCCAATTGGCC3’.
d) A more stable helix is formed by 5’AATTAAGGAATTAA3’.
e) The helix can be either left-handed or right-handed.
f) The helix has both hydrophilic parts and hydrophobic parts.
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Are You Getting It??
____________________________________________________
____________________________________________________
Which characteristics apply to:
B-DNA; A-DNA; Z-DNA; H-DNA; a cruciform?
a) The structure is a double-helix.
b) The structure is a right-handed helix.
c) The structure requires a palindrome.
d) The structure requires a specific sequence of
purines and pyrimidines.
e) The structure contains hydrogen-bonds.
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Are You Getting It??
____________________________________________________
______________________Answer________________________
Which characteristics apply to:
B-DNA; A-DNA; Z-DNA; H-DNA; a cruciform?
a) The structure is a double-helix. A, B, Z
b) The structure is a right-handed helix. A, B
c) The structure requires a palindrome. cruciform
d) The structure requires a specific sequence of
purines and pyrimidines. Z, H
e) The structure contains hydrogen-bonds. all
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Are You Getting It??
____________________________________________________
____________________________________________________
Which characteristics will be shared by all
DNA double-helices? (multiple answers)
a) They all have the same amount of adenine.
b) They all have a base composition where A=T.
c) They all have two strands with complementary sequences.
d) They all denature at the same temperature.
e) They all hybridize at high pH.
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Are You Getting It??
____________________________________________________
_______________________Answer_______________________
Which characteristics will be shared by all
DNA double-helices?
a) They all have the same amount of adenine.
b) They all have a base composition where A=T.
c) They all have two strands with complementary sequences.
d) They all denature at the same temperature.
e) They all hybridize at high pH.
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Are You Getting It??
____________________________________________________
____________________________________________________
Which properties are expected of genetic material?
(multiple answers)
a) It is the same in all cells of an organism.
b) It is the same in all organisms.
c) It can control/transform the characteristics of an
organism.
d) It changes as an organism ages.
e) It is double-stranded DNA.
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Are You Getting It??
____________________________________________________
______________________Answer________________________
Which properties are expected of genetic material?
a) It is the same in all cells of an organism.
b) It is the same in all organisms.
c) It can control/transform the characteristics of an
organism.
d) It changes as an organism ages.
e) It is double-stranded DNA.
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Are You Getting It??
____________________________________________________
____________________________________________________
Which properties can be characteristic of
viral genetic material or bacterial genetic material?
a) It is single-stranded.
b) It is circular.
c) It contains several million bases.
d) It is compacted.
e) It is found in the nucleus.
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Are You Getting It??
____________________________________________________
______________________Answer_______________________
Which properties can be characteristic of
viral genetic material or bacterial genetic material?
a) It is single-stranded. viral
b) It is circular. both
c) It contains several million bases. bacterial
d) It is compacted. both
e) It is found in the nucleus. bacterial
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Are You Getting It??
____________________________________________________
____________________________________________________
Which properties are characteristic of eukaryotic genetic
material? (multiple answers)
a) It is contained in a single chromosome.
b) It is complexed with protein.
c) It is compacted about 10-fold.
d) Each nucleosome contains several histone proteins.
e) Each histone protein is negatively-charged.
f) Nucleosomes are arranged into a helix.
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Are You Getting It??
____________________________________________________
_______________________Answer_______________________
Which properties are characteristic of eukaryotic genetic
material?
a) It is contained in a single chromosome.
b) It is complexed with protein.
c) It is compacted about 10-fold.
d) Each nucleosome contains several histone proteins.
e) Each histone protein is negatively-charged.
f) Nucleosomes are arranged into a helix.
57