Structure
Structure Contd.
Chargaff's Rule
Misc.
100
Draw and label a nucleotide.
100
In DNA, Adenine always bonds with _____.
What is Thymine?
100
A pairs with ____.
C pairs with ____.
A pairs with __T__.
C pairs with __G__.
100
This is the name of the subunit/building block of DNA and contains a sugar, a phosphate, and a base.
What is nucleotide?
200
What 2 molecules make up the "Back-bone" or sides of the DNA molecule?
phosphate and sugar (deoxyribose)
200
What is the purpose of DNA?
Stores genetic code.
200
If 25% of the bases are C, what % are G?
25%
200
True or False: All organisms have the same number of A and T as other organisms.
DNA molecules have the same number of A and T. Organisms have different DNA, therefore they will have different percentages of nucleotides.
300
What 4 molecules are considered nitrogenous bases?
Adenine (A), Thymine (T), Guanine (G), and Cytosine (C)
300
The full name of the sugar in DNA.
What is Deoxyribose?
300
If 15% of the bases are T, what % are C?
35%
300
If there is 30% Guanine in a DNA molecule, how much ADENINE would there be?
What is 20%?
400
What is the overall shape of a DNA molecule?
Double Helix
400
How many hydrogen bonds form between A and T?
2
400
What is the complementary strand to:
ATCGGCCATTATAG
ATCGGCCATTATAG
TAGCCGGTAATATC
400
These guys didn't conduct an experiment but took someone else's data and created a model of DNA, being the first ones to publish its structure.
Watson, Crick
500
What holds the 2 DNA strands together to make the DNA molecule?
Hydrogen Bonds (2 between A &T, 3 between C & G)
500
How many hydrogen bonds form between C and G?
3
500
What is the complementary strand to:
ATCGCTAGACTAG
ATCGCTAGACTAG
TAGCGATCTGATC
500
This was used to determine that DNA was a double helix.
X-ray crystallography