Unit 7: DNA and Protein Synthesis

Which of the following is not a component of a nucleotide?

• phosphate group

• deoxyribose sugar

• carboxyl group

• nitrogenous base

Which of the following parts of a nucleotide acts as the "code" for creating proteins

• nitrogenous base

• deoxyribose sugar

• phosphate group

• carboxyl group

According to the complementary base pairing rule, adenine (A) always binds with...

• cytosine (C)

• thymine (T)

• guanine (G)

According to the complementary base pairing rule, guanine (G) always binds with...

• thymine (T)

• adenine (A)

• cytosine (C)

• uracil (U)

According to chargoff's rule, if a genome consisted of 20% cytosine (C), how much guanine (G) would is consist of?

• 10%

• 20%

• 30%

• 50%

The deoxyribose sugar and the phosphate groups make up the __________ of a DNA strand

• nitrogenous base

• coding sequence

• backbone

The two strands of DNA are joined together by the binding of the nitrogenous bases. Which type of bond exists between the nitrogenous bases?

• hydrogen bond

• covalent bond

• ionic bond

• water bond

Determine the complementary strand of DNA based on the following sequence: CCA

• CCT

• GGA

• GGU

• GGT

Where does DNA replication take place?

• cytoplasm

• ribosome

• nucleus

• mitochondria

The end product of DNA replication is known as "semi-conservative". What does this indicate?

• that each double helix consists of newly copied strands of DNA

• that each double helix consists of the original strands of DNA

• one double helix consists of the original strands and the other consists of copied strands

• each double helix consists of one original strand and one copied strand