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Formative assessment—DNA structure and replication
1/13/2014N. Brown’s classes
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1 Every nucleotide is made up of…
1. Sugar2. Phosphate3. Nitrogen base4. All of the above
1 2 3 4
0% 0%0%0%
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1Every nucleotide monomer is made up of…
1. Ribose Sugar2. Phosphate3. Nitrogen base4. All of the above
In ribonucleotides of RNA, this C of the ribose is bonded to an H and to an OH group. In
deoxyribonucleotides of DNA, this C shows 2 H bonded instead---deoxy- means w/o an O!
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2 Regarding the nitrogen bases, Adenine always bonds with which one?
1. Cytosine2. Thymine3. Guanine4. Uracil
1 2 3 4
0% 0%0%0%
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2 Regarding the nitrogen bases, in double stranded DNA, the nucleotide Adenine always bonds with which
one?1. Cytosine2. Thymine3. Guanine4. UracilNote the antiparallel (facing
opposite directions) strands joined by complementary nitrogenous base pairs between the deoxyribonucleotides:
A to T and C to G Hydrogen bonds (H bonds) attract the nitrogenous base pairs to each other
and hold the 2 strands of Dna together in the double helix
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The 2 halves of the DNA double helix are comprised of H bonded complementary, but anti-parallel, deoxyribonucleotide base pairs.
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3 DNA contains the code to make what macromolecule?
1. Glucose2. Protein3. Carbohydrates4. Lipids
1 2 3 4
0% 0%0%0%
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3 DNA contains the code to make what macromolecule?
1. Glucose2. Protein3. Carbohydrates4. Lipids
Each gene contains the pattern for a particular protein (the order in which
to put amino acid monomers together to build the polymer called
a protein.
Proteins are the tools that carry out all the jobs and build most of the
structures in our cells.
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expression (use) of genes to make proteins
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4 The two strands of DNA are bonded together in the middle by their…
1. Sugars2. Phosphates 3. Nitrogen bases
1 2 3
0% 0%0%
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4The two strands of DNA are bonded together in the middle by their…
1. Deoxyribose Sugars2. Phosphates groups3. Nitrogenous bases
Hhydrogen bonds between the complementary base pairs temporaily
join them the two strands—the Hydrogen bonds are broken to allow
DNA replication or transcription when mRNA is made.
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5 What type of bonds are between the sugars and phosphates in DNA?
A. HydrogenB. CovalentC. IonicD. Metallic
Hydroge
n
CovalentIonic
Metallic
25% 25%25%25%
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5 What type of bonds are between the sugars & phosphates in DNA?
A. HydrogenB. CovalentC. IonicD. Metallic
Strong permanent covalent bonds link sugars and phosphates into the
sides (backbones) of the double helix
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6 If one strand of DNA had a sequence of nitrogen bases that read A C C T G A , than the complementary strand would have what sequence?
1. A C C T G A2. C T T G A T3. T G G A C T4. T A A C C C
1 2 3 4
0% 0%0%0%
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6 If one strand of DNA had a sequence of nitrogen bases that read A C C T G A , than the complementary strand is__?
1. A C C T G A2. C T T G A T3. T G G A C T4. T A A C C C
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7 In the following DNA molecule which is the Deoxyribose Sugar
1. 12. 23. 34. 4
1
2
3
4
1 2 3 4
25% 25%25%25%
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7 In the following DNA molecule which is the Deoxyribose Sugar
1. 12. 23. 34. 40%
0%
0%
0%
1
2
3
4
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8 The letter A at the bottom of the picture represents this monomer unit?
1. Amino acid2. Nucleotide 3. DNA4. mRNA0%
0%
0%
0%
A
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8 The letter A at the bottom of the picture represents this monomer unit?
1. Amino acid2. Nucleotide 3. DNA4. mRNA0%
0%
0%
0%
A
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9 If a double stranded DNA molecule contains 28 sugars, how many nucleotides would your DNA ladder contain?
1. 12. 143. 284. 425. 56
1 2 3 4 5
0% 0% 0%0%0%
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9: If a double stranded DNA molecule contains 28 sugars, how many nucleotides would your DNA ladder contain?
1. 12. 143. 284. 425. 56
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10 If a particular strand of DNA contains 20% Adenine, what percentage of Thymine can be expected in the complementary
strand of DNA?
1. 1%2. 10%3. 20%4. 40%5. 80%
1 2 3 4 5
0% 0% 0%0%0%
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10 If a particular strand of DNA contains 20% Adenine, what percentage of Thymine can be expected in the complementary
strand of DNA?
1. 1%2. 10%3. 20%4. 40%5. 80%
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11 Which one of the following nucleotide pair bonds would be found in a DNA molecule?
1. adenine-guanine2. guanine-cytosine3. adenine-cytosine4. cytosine-uracil
1 2 3 4
0% 0%0%0%
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11: Which one of the following nucleotide pair bonds would be found in a DNA molecule?
1. adenine-guanine2. guanine-cytosine3. adenine-cytosine4. cytosine-uracil
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12 The backbone of a DNA molecule is made of which two components?
1. phosphate molecules and ribose sugars
2. deoxyphosphate molecules and ribose sugars
3. phosphate molecules and deoxyribose sugars
4. deoxyphosphate molecules and deoxyribose sugars
1 2 3 4
0% 0%0%0%
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12: The backbone of a DNA molecule is made of which two components?
1. phosphate molecules and ribose sugars
2. deoxyphosphate molecules and ribose sugars
3. phosphate molecules and deoxyribose sugars
4. deoxyphosphate molecules and deoxyribose sugars
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13 Watson and Crick were the first to suggest that DNA is _____.
1. a short molecule2. the shape of a
double helix3. a protein molecule4. the genetic material
1 2 3 4
0% 0%0%0%
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13: Watson and Crick were the first to suggest that DNA is _____.
1. a short molecule2. the shape of a
double helix3. a protein molecule4. the genetic material
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Where does DNA replication take place in a cell?
1. Cytoplasm2. Endoplasmic
Reticulum3. Golgi Body4. Nucleus5. Vacuole
1 2 3 4 5
0% 0% 0%0%0%
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14:Where does DNA replication take place in a cell?
1. Cytoplasm2. Endoplasmic
Reticulum3. Golgi Body4. Nucleus5. Vacuole
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15 DNA is a
Carbohydrate
Protein
Nucleic
Acid Lipid
0% 0%0%0%
1. Carbohydrate2. Protein3. Nucleic Acid4. Lipid
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15: DNA is a
1. Carbohydrate2. Protein3. Nucleic Acid4. Lipid
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16 The monomer units of DNA are called
Deoxyribose
Nucleotides
Adenines
Ribose
0% 0%0%0%
1. Deoxyribose2. Nucleotides3. Adenines4. Ribose
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16 The monomer units of DNA are called
Deoxyribose
Nucleotides
Adenines
Ribose
0% 0%0%0%
1. Deoxyribose2. Nucleotides3. Adenines4. Ribose