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DNA Structure
Base-Pairing
DNA Replication
DNA Replication II
Meaning in Words
100
What kind of macromolecule is DNA? A. Protein B. Carbohydrate C. Enzyme D. Nucleic acid E. Lipid
D. Nucleic acid
100
What base pairs up with adenine (A)?
Thymine/T
100

DNA replication produces 2 daughter DNA molecules that are _____________________ the original strand. A. identical to B. similar to C. different from

A. identical to

100

DNA replication occurs during this phase of the cell cycle:

What is S phase of Interphase?

100

Helicase, polymerase, ligase all and in -ase.  The -ase indicates that these structures are this.

What is an enzyme?

200
DNA is made up of monomers called _________________
nucleotides
200
What base does guanine (G) pair up with?
Cytosine (C)
200
What kind of DNA replication actually occurs? A. Conservative B. Semi-conservative C. Dispersive
Semi-conservative replication
200

In DNA replication, this is the continuously synthesized (made) new DNA strand.

What is the leading strand?

200

Sucrose, glucose, fructose, deoxyribose all end in -ose.  The -ose indicates that these structures are this.

What are sugars?

300
DNA looks like a twisted ladder. Its shape is called ______________________.
double helix
300
If a sample is DNA is 38% cytosine (C), what percent adenine (A) is it?
12%
300
Which of the following is the FIRST step in DNA replication? A. Helicase unzips the double helix B. DNA polymerase proofreads the strand C. DNA polymerase unzips the double helix D. Helicase proofreads the strand
A. Helicase unzips the double helix
300

The lagging strand of the DNA molecule is built with these "chunks of DNA"

What is Okazaki fragments?

300

In the word "polymer", "-mer" means unit.  What does "poly-" mean?

What is "many"?

400
Each nucleotide has three parts. Name them.
Base, sugar, phosphate
400
If a DNA sample is 38% cytosine (C), what percent is guanine (G)?
38%
400

What is a permanent mistake in DNA called?

A mutation

400

This enzyme joins together Okazaki fragments.

What is ligase?

400

Monomers make up polymers.  "-mer" means unit.  This is what "mono-" means.

What is "one"?

500
What is the name of the sugar in DNA?
deoxyribose
500
Which two bases are purines?
Adenine and guanine
500
What is the name of enzyme responsible for proofreading the final daughter strands?
DNA polymerase
500

DNA replication must occur before this happens.

What is it must occur before mitosis?

500

"DNA polymerase" literally means this.

What is an enzyme (-ase) which makes the many units (polymer) of DNA?