1. DNA and Chromosomes

2. Tongue in Cheek
Forgive and Forget
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3. DNA and Chromosomes
Target: I will be able to explain the relationship of DNA to chromosomes and genes and identify the parts of a chromosome.
DNA is really large. To fit into the cell, it must coil up into chromosomes.
When the DNA is coiled tightly in the nucleus, it is a chromosome.
Histone: The protein that DNA coils tightly around.
Chromosomes: cell structures that contain genetic information.
Passed on from one generation of cells to the next.
Located in the nucleus of eukaryotic cells.
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4. Chromosome
DNA
Histone

6. Parts of a Chromosome:
1. Gene: A section of DNA that codes for (provides the instructions for making) a protein.
2. Chromatid: one arm of a chromosome.
A double stranded chromosomes has sister chromatids that are identical.
3. Centromere: The place where sister chromatids are attached.

7. DNA to Chromsome

8. Genes
Centromere
Chromatid
Sister Chromatids
Summary:

9. DNA to Chromosomes
Complete the worksheet and paste it in your notes so you can see the chromosome drawing below.
Draw the structure of a chromosome and label all it’s parts (Centromere, Chromatid, Sister Chromatids, and Genes)
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