Module 2 Assessment

DNA

100

What is the name of the DNA structure?

Double Helix

200

What is the name of the sugar in DNA?

Deoxyribose

300

What two nitrogenous bases are purines?

Adenine and Guanine

400

Why are there 8 nucleotides but only 5 nitrogenous bases?

• DNA has 4 bases A/T/G/C

• RNA has 4 bases A/U/G/C

RNA

100

What is the name of the sugar found in DNA?

Ribose

200

What is the name of the sugar found in DNA?

Ribose

300

What nitrogenous bases are pyrimidines?

Cytosine and Uracil and Thymine

400

What does the sugar of RNA have that DNA does not?

An Oxygen

E. coli DNA Replication

100

The DNA in E.coli are which of the following: circular or linear?

Circular

200

Why does replication start at the Ori C region?

Because it’s A + T rich making it easier to break apart

300

True or False: DNA is synthesized in the 3’-5’ Direction?

False

400

Name the enzyme that adds nucleotides to the 5'-3’ direction.

DNA polymerase III