Unit 2 (Section 1) Review

What did Fredrick Griffith discover from his work?

• A transforming materials passed from dead R bacteria to live S bacteria, leaving them harmless

• A transforming material passed from dead S bacteria to live R bacteria, making them deadly

• A transforming material passed from dead S bacteria to live R bacteria, leaving them harmless

• How protein synthesis works.

What was the outcome of the Hershey and Chase experiment?

• Carbohydrates store an organism's genetic information.

• Protein stores an organism's genetic information.

• Lipids store an organism's genetic information.

• DNA stores an organism's genetic information.

What is DNA?

• deoxyribonucleic acid (a type of nucleic acid)

• ribonucleic acid (a type of nucleic acid)

• deoxyribonucleic acid (a type of amino acid)

• ribonucleic acid (a type of amino acid)

How would you describe the structure of DNA?

• a single stranded helix

• round

• a double helix

• square

What composes the center of DNA's double helix?

• phosphate groups

• sugars

• nitrogen-containing bases

• carbohydrates

What composes the outer strands of DNA's double helix?

• sugar and nitrogen-containing bases

• nitrogen-containing bases and phosphate groups

• sugar and phosphate groups

• sugar only

Define Chargaff's Rule.

• A-T and C-G

• A-C and C-G

• A-T and C-T

• A-C and T-G

Describe how the base-pairing rules give DNA its shape.

• a purine always pairs with another purine giving DNA's double helix and uneven width

• a purine always pairs with a pyrimidine giving DNA's double helix a uniform width

• a pyrimidine pairs with another pyrimidine giving DNA's double helix a uniform width

• the base-pairing rules don't contribute to DNA's structure.

What is replication?

• process by which RNA is copied.

• process by which a protein is copied.

• process by which DNA is used to make protein.

• process by which DNA is copied

What are the functions of DNA polymerase?

• it is a carbohydrate that makes bonds between nucleotides, forming an identical strand of RNA during replication and that also corrects errors during base-pairing

• it is an enzyme that makes bonds between nucleotides, forming an identical strand of RNA during replication and that also corrects errors during base-pairing

• it is an enzyme that makes bonds between nucleotides, forming an identical strand of DNA during replication and that also corrects errors during base-pairing

• it is a carbohydrate that makes bonds between nucleotides, forming an identical strand of DNA during replication and that also corrects errors during base-pairing