Bell Ringer: Have your vocabulary numbered on the side of your desk!

Slides:



Advertisements
Similar presentations
8.1 Identifying DNA as the Genetic Material KEY CONCEPT DNA was identified as the genetic material through a series of experiments.
Advertisements

Section 8.3: DNA Replication
Replication copies the genetic information.
Goal: Students will be able to explain how DNA was identified as the genetic material, describe the basic processes of replication, transcription, and.
DNA Replication. Cell Division and DNA Replication Cells divide -->Growth, Repair, Replacement Before cells divide they have to double cell structures,
KEY CONCEPT DNA replication copies the genetic information of a cell.
8.2 DNA Structure 8.3 DNA Replication
Griffith finds a ‘transforming principle.’
DNA Replication. When does DNA replication happen during the cell cycle? The S phase In order to go through cell division we must have two copies of DNA.
8.3 DNA Replication Essential Idea Genetic information in DNA can be accurately copied and can be translated to make the proteins needed by the cell.
DNA Replication Replication is the process by which DNA is copied. Watson and Crick realized that a single strand can serve as a template or pattern for.
Class Notes 2: DNA Replication. Replication Process.
Set up Cornell Notes on pg. 5
KEY CONCEPT DNA replication copies the genetic information of a cell.
Ch DNA Replication. Target #15- I can describe DNA replication A single DNA strand can serve as a template for a new strand –Replication: the process.
DNA Replication This is when DNA replication happens! (part of interphase)
What are the NAMES of the nucleotides? T.G.I.T. !!! 3/23/10 1. What are the NAMES of the nucleotides? 2. How do they pair up? 3. What are the 3 molecules.
KEY CONCEPT DNA replication copies the genetic information of a cell.
REPLICATION: How do we get more DNA?. Definition: The process of synthesizing a new strand of DNA.
LS: I will be able to explain the process of DNA replication.
8.3 DNA Replication KEY CONCEPT General Description: DNA replication copies the genetic information of a cell.
{ DNA Replication.  When DNA makes an exact copy of itself.  Required step before cell division (making new cells).  DNA is the template / Enzymes.
8.3 DNA Replication KEY CONCEPT DNA replication copies the genetic information of a cell.
8.3 DNA Replication KEY CONCEPT DNA replication copies the genetic information of a cell.
Use your books or notes to answer these questions
8.3 DNA Replication TEKS 3E, 5A, 9C The student is expected to: 3E evaluate models according to their limitations in representing biological objects or.
Unit 7b – Replication Chapter 8.3.
KEY CONCEPT DNA replication copies the genetic information of a cell.
DNA Replication.
KEY CONCEPT DNA replication copies the genetic information of a cell.
Bell Work What are the base pairs?
KEY CONCEPT DNA replication copies the genetic information of a cell.
7.2 DNA REPLICATION What are the steps in DNA replication?
Chapter 12 Section 3 DNA Replication
Section 8-3 “DNA Replication”
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
12.1 DNA: The Genetic Material
KEY CONCEPT DNA replication copies the genetic information of a cell.
DNA Replication.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
BELLRINGER DNA is an example of what type of macromolecule?
KEY CONCEPT DNA replication copies the genetic information of a cell.
DNA Replication Notes.
Replication copies the genetic information.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
8.3 DNA replication.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
The Molecular Basis of Inheritance
KEY CONCEPT DNA replication copies the genetic information of a cell.
KEY CONCEPT DNA replication copies the genetic information of a cell.
The Structure and Function of DNA
KEY CONCEPT DNA replication copies the genetic information of a cell.
DNA REPLICATION KEY CONCEPTS: What are the steps in DNA Replication?
Presentation transcript:

Bell Ringer: Have your vocabulary numbered on the side of your desk! 1-How are base pairing rules related to Chargaff’s research on DNA? 2-In a sample of yeast DNA 31.5% of the bases are adenine. Predict the approximate percentages of C, G, and T. 3-How many rings are there on each base pair?

KEY CONCEPT DNA replication copies the genetic information of a cell.

REPLICATION = DNA making DNA original strand new strand Two molecules of DNA

Replication copies the genetic information. A single strand of DNA serves as a template for a new strand. The rules of base pairing direct replication. DNA is replicated during the S (synthesis) stage of the cell cycle. Each body cell gets a complete set of identical DNA.

Proteins carry out the process of replication. DNA serves only as a template in a three step process. nucleotide The DNA molecule unzips in both directions.

Enzymes and other proteins do the actual work of replication. DNA polymerases are proteins (enzymes) that form bonds between nucleotides during replication. DNA poly = tells us it makes DNA polymers Ases = tells us its an enzyme

The DNA molecule unzips in both directions. Step ONE Enzymes unzip the double helix an numerous places along the chromosome. (these places are called origins of replication) This means the hydrogen bonds connecting base pairs are broken, the original molecule separates, and the bases on each strand are exposed. This process proceeds in two directions at one time. nucleotide The DNA molecule unzips in both directions.

Step TWO: Free-floating nucleotides pair, one by one, with the bases on the template strands as they are exposed. DNA polymerases bond the nucleotides together to form new strands that are complementary to each template strand. DNA polymerase new strand nucleotide

STEP THREE Two new molecules of DNA are formed, each with an original strand and a newly formed strand. DNA replication is semiconservative. (one old and one new strand) original strand new strand Two molecules of DNA

Replication is fast and accurate. DNA replication starts at many points in eukaryotic chromosomes. The replication “bubbles grow larger as replication progresses. There are many origins of replication in eukaryotic chromosomes. DNA polymerases can find and correct errors.

DNA replication takes about eight hours in human cells DNA replication takes about eight hours in human cells. If there were only one origin the process would take about a hundred times longer.

Question In step 1 how does the DNA unzip?

Question In step 2, how do the new strands compare with the template strands?

Question What is the result of DNA replication?

Question Why is it important for the cell to correct any errors that occur during replication?