AP Bio

Regulatory gene

codes for the repressorprotein
Promoter

where the RNA polymeraseattaches.
What are some differences between DNA and RNA?
- DNA is double-stranded,
- RNA single-stranded
- DNA contains Thymine,
- RNA contains Uracil
- DNA contains deoxyribose as its sugar
- RNA contains ribose
Nucleic Acids are formed from _______?

NUCLEOTIDES.
What are Nucleotides made of
- sugar,
- phosphate group
- nitrogenous base.
Sugar and phosphate
molecules combine to form a
______along the outside
edge(s) of the molecule

backbone
Give what each base pairs to
- A with T (or U)
- G with C
Of the bases, _____ and ______ are
double ring structures called ______.
- Adenine
- Guanine
- purines
Of the bases, _______ and ______ are
single ring structures called ________.
- cytosine
- Thymine
- pyrimidines
One purine always pairs with one what

pyrimidines
Why can C only pair with G and A only pair with T?

Hydrogen bonds
Which carbons are the phosphate groups attatched to?

#3 and 5
The arrangement of phosphates produces
a __ and a __end of that side of the DNA
molecule. The 3' end has __ ______
attached to the __ _____
- 3'
- 5'
- no phosphate
- #3 carbon
Give an example of antiparallel

the opposite sides of the DNA molecule have the 3' and 5' end opposite from each other
Enzymes only move from

5' to 3'
DNA must be able to make exact duplicates of
itself in order for every cell to have the same
DNA. This process is called

semiconservative replication

Author

Anonymous

198485

Card Set

AP Bio

Description

ap bio

Updated

2013-02-06T23:56:01Z