Show:
A
B
C
D
E
100
What does DNA stand for?
Deoxyribonucleic Acid
100
Describe the basic structure of DNA.
Double Helix
100

What are the four letters that represent the nitrogenous bases in DNA?

A, T, C, G

100

Which of the nitrogenous bases in DNA pair up?

A with T

C with G

100
What is the building block (monomer) of DNA?
nucleotide
200

The sequences of bases in DNA creates the ______ code.

genetic

200
What two components make up the backbone of DNA?
Phosphate and Sugar (Deoxyribose)
200
What three parts make up a nucleotide?
Phosphate group, nitrogenous base, and sugar (deoxyribose)
200

Who are the scientists who built the first correct model of the structure of DNA?

Watson and Crick

200

What part of a nucleotide is on the 5' end?

Phosphate group
300
What does the nitrogenous base "T" stand for?
Thymine
300

During DNA replication, a new nucleotide can only be added to which end of the forming strand?

3' end

300

What element does a nucleic acid have that a protein does not have?

phosphorous

300

How many hydrogen bonds are between A and T?

2

300
How many bonds are between C and G?
3
400
What nitrogenous bases are purines?
A (Adenine) and G (Guanine)
400
What nitrogenous bases are pyrimidines?
T (Thymine) and C (Cytosine)
400

Chargaff's Rule states that the number of A = _____ and the number of G = _____.

A = T

G = C

400

What is the term for the fact that the two complimentary strand of DNA run in opposite directions?

antiparallel

400

Who was the scientist who created photo 51?

Rosalind Franklin

500
How many ring(s) does a purine have?
2
500
How many ring(s) does a pyrimidine have?
1
500

To begin DNA replication, the DNA must unwind and then, what kind of bonds must break?

hydrogen bonds

500
If a DNA strand has 20% A, what percentage of G will it have?
30% G
500

What kind of bonds hold together the sugar-phosphate backbone of DNA?

covalent bonds