dna protein synthesis replication. dna carries a code for proteins
TRANSCRIPT
DNAProtein Synthesis
Replication
DNA carries a code for proteins
What are proteins used for?
What are proteins used for?
What are proteins used for?
DNA
protein
DNA
protein
Stays in nucleus
made byribosomes
DNAmessenger
protein
http://www.johnkyrk.com/DNAtranscription.html
1. One side of DNA is ‘transcribed’ to messenger RNA.
http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP1302
2. Messenger RNA is ‘translated’ to make proteins.
Replication: making copies of DNA so cell can divide into two new cells
Replication in Prokaryotes
Replication in Prokaryotes
Replication in Eukaryotes
(they have a nucleus)
Mitosis
Meiosis
This replication makesSperm or Egg cellsfor reproduction.Note they are all
different.
Asexual reproduction No mixing of DNA
You get the same organism
Sexual reproduction DNA is mixed to make new organism
Egg and Sperm
Plants
Sexual reproduction DNA is mixed to make new organism
Egg and Sperm
Fungi
Sexual reproduction DNA is mixed to make new organism
Egg and Sperm
Animals
Sexual reproduction DNA is mixed to make new organism
Egg and Sperm
Humansare
Animals
Some organisms reproduce in different ways for different reasons.
Everything is fine.No reason to change.
Everything is fine.No reason to change.
Tsunami or big waves.Coral is in pieces.
Everything is fine.No reason to change.
Tsunami or big waves.Coral is in pieces.
Environment changes.Rapid evolution needed.