AP Biology

1
AP Biology

• Immune Systems
• Part 3

2
(No Transcript)
3
Rh factor and Pregnancy
4
LUPUS
5
Rheumatoid Arthritis
6
Neuron
7
SCID
8
Gene-to-gene recognition
R
No Avr allele virulent pathogen
R allele plant cell becomes diseased
Avr allele
No R allele plant cell becomes diseased
Avr allele virulent pathogen
No Avr allele virulent pathogen
No R allele plant cell becomes diseased
If there is no gene-for-gene recognition because
of one of the above three conditions, the
pathogen will be virulent, causing disease to
develop.
9
Hypersensitive Immune Response