formative assessment—dna structure and replication

Formative assessment—DNA structure and replication

1/13/2014N. Brown’s classes

1 Every nucleotide is made up of…

1. Sugar2. Phosphate3. Nitrogen base4. All of the above

1 2 3 4

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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!

2 Regarding the nitrogen bases, Adenine always bonds with which one?

1. Cytosine2. Thymine3. Guanine4. Uracil

1 2 3 4

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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

The 2 halves of the DNA double helix are comprised of H bonded complementary, but anti-parallel, deoxyribonucleotide base pairs.

3 DNA contains the code to make what macromolecule?

1. Glucose2. Protein3. Carbohydrates4. Lipids

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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.

expression (use) of genes to make proteins

4 The two strands of DNA are bonded together in the middle by their…

1. Sugars2. Phosphates 3. Nitrogen bases

1 2 3

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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.

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%

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

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

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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

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%

7 In the following DNA molecule which is the Deoxyribose Sugar

1. 12. 23. 34. 40%

0%

0%

0%

1

2

3

4

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

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

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

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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

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

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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%

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

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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

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

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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

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

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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

Where does DNA replication take place in a cell?

1. Cytoplasm2. Endoplasmic

Reticulum3. Golgi Body4. Nucleus5. Vacuole

1 2 3 4 5

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14:Where does DNA replication take place in a cell?

1. Cytoplasm2. Endoplasmic

Reticulum3. Golgi Body4. Nucleus5. Vacuole

15 DNA is a

Carbohydrate

Protein

Nucleic

Acid Lipid

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1. Carbohydrate2. Protein3. Nucleic Acid4. Lipid

15: DNA is a

1. Carbohydrate2. Protein3. Nucleic Acid4. Lipid

16 The monomer units of DNA are called

Deoxyribose

Nucleotides

Adenines

Ribose

0% 0%0%0%

1. Deoxyribose2. Nucleotides3. Adenines4. Ribose

16 The monomer units of DNA are called

Deoxyribose

Nucleotides

Adenines

Ribose

0% 0%0%0%

1. Deoxyribose2. Nucleotides3. Adenines4. Ribose