DNA Replication Mini Lesson

Multiple Choice

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine

• adenine, thymine cytosine, and guanine

• adenine, thymine, cytosine, and gylcerol

• adenine, thymine, cytosine, and glucose

Multiple Choice

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Multiple Choice

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Multiple Choice

DNA is built in this direction

• 5^' to 3' (new nucleotides added to the 3' end)

• 3' to 5' (new nucleotides added to the 5' end)

• 3' to 5' (new nucleotides added to the 3' end)

• 5^' to 3' (new nucleotides added to the 5' end)

Multiple Choice

The enzyme that unzips the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

Multiple Choice

Which enzyme is responsible for adding nucleotides?

• Helicase

• DNA Polymerase

• Ligase

• Primase

Multiple Choice

Which is the first step?

• DNA Helicase unwinds original DNA strand

• RNA Primase lays down RNA primer for new nucleotide bases.

• DNA polymerase builds new strands by bring in new nucleotide bases.

• Ligase knits together fragments on lagging strand

Multiple Choice

Which is the third step?

• DNA Helicase unwinds original DNA strand

• RNA Primase lays down RNA primer for new nucleotide bases.

• DNA polymerase builds new strands by bring in new nucleotide bases.

• Ligase knits together fragments on lagging strand

Multiple Choice

Which is the fourth step?

• DNA Helicase unwinds original DNA strand

• RNA Primase lays down RNA primer for new nucleotide bases.

• DNA polymerase builds new strands by bring in new nucleotide bases.

• Ligase knits together fragments on lagging strand

Multiple Choice

Which is the second step?

• DNA Helicase unwinds original DNA strand

• RNA Primase lays down RNA primer for new nucleotide bases.

• DNA polymerase builds new strands by bring in new nucleotide bases.

• Ligase knits together fragments on lagging strand

Fill in the Blank

DNA replication is described as ________ when new DNA is composed of one strand from the parent DNA and one strand that is newly synthesized.