lo: swbat understand how dna stores genetic material dn: what is dna? what is the function of dna?...
TRANSCRIPT
LO: SWBAT understand how DNA stores genetic material
DN: What is DNA? What is the function of DNA?
HW: Vocab: DNA, nucleic acids, genes, chromosomes, genetic code, nucleotide, bases, base sequence
Page: read pp 291-294, page 294# 2,3,4
What is DNA?
Carries the instructions for cell activities
Deoxyribonucleic acid
Nucleic Acids
DNA orRNA
Nucleotides
PhosphateSugarBase
What are these instructions?• GENES
• How did we get our genes?
Where are genes found?
Genes DNA chromosomes nucleus(Smallest) (Largest)
How does DNA make up our chromosomes?
What do our genes give us?
Our characteristics or traits
Cleft Chin
Dominant (1 copy) Recessive- 2 copies
Dimples
Dominant Recessive
Free earlobesDominant
Attached EarlobesRecessive
Face freckles dominant
No face freckles recessive
No Hitchhiker's thumb dominant
Hitchhiker's thumb recessive
Widow's peak dominant
No Widow's peak recessive
How many genes do we have?
Thousands on ______ chromosomes46
How does DNA carry the genes?
• The structure of DNA allows it to carry the genetic code
• It is a double helix made of repeating nucleotides
What is a nucleotide made of?
Deoxyribose
4 types
Subunits of DNA
What bases make up the DNA ladder rungs?
• Adenine
• Thymine
• Guanine
• Cytosine
How do the bases pair up?
All …. Teachers
Go …. Crazy
What holds the DNA base pairs together?
Weak hydrogen bonds
3 Hydrogen Bonds
2 Hydrogen Bonds
What in the DNA is unique in all organisms?
The base sequence
What part of DNA carries the genetic code?
The base sequence holds the genetic code.
Each organism has a different sequence of bases
Let’s review
1. Where is DNA found?
2. What determines our traits?
3. Where are genes located?
4. What part of DNA carries the genetic code?
Genes
ALL TEACHERS GO CRAZY