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AP Bio Chapter Test
Chapter 16, 17, and 20
11
Biology
12th Grade
04/28/2010

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Cards

Term
What are the terms for the 3 hypothesis's for Replication? Which method was the correct? 
Definition

Conservative


Semi-Conservative


Dispersive


Semi-Conservative

Term
How does Replication occur?
Definition
One half of the original was retained so each new piece of DNA had one side from the original.
Term
What does DNA Polymerase do?
Definition
Attaches DNA nucleotides to a complimentary strand of DNA at the backbone.
Term
What direction does the DNA polymerase move?
Definition
3' to 5' 
Term

What must be on the DNA strand for the DNA polymerase to begin replication?

 

Definition
RNA primer
Term
What does DNA Ligase do?
Definition
Removes the RNA segments from the Lagging strand and shoves the correct DNA into the hole. 
Term
What are the 3 types of RNA, and what does each of them do?
Definition

1. mRNA - Messenger RNA ~ Transfers DNA code, carries to ribosomes.

2. tRNA - Transport RNA ~ Transfers amino acids to ribosome

3. rRNA - Ribosomal RNA ~ a Component of the actual ribosome

Term

DNA -> RNA

ATC -> _ _ _

Definition

RNA -> DNA

UAG -> _ _ _

Term
What is a codon?
Definition
A set of 3 nitrogen bases, all in a long strand. A series of "triplets' that codes for Amino acids.
Term
What is an Anti Codon?
Definition
Set of three Nitrogen bases, in tRNA. each triplet is separate from the next.  
Term
What are the steps of Transcription?
Definition

1. Initiation Phase

2. Elongation

3. Termination

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