Post on 21-Jan-2016
CalendarTues., 9/9Topic: Blood TypeHomework: Study for test Thurs./Fri.& If you were absent yesterday, finish Class Traits Lab (pg. 34)
To Do
Get outCalendarPencil & comp bookGlue/tape/stapler(Maybe) Colors (for later)
If you were absent•You missed the Punnett Square Quiz. You can do it today after school, or you can miss some of Review on Wed.•We finished pg. 34. You need to finish on your own.
History of Blood Transfusion from 1628-1907
http://www.redcrossblood.org/learn-about-blood/history-blood-transfusion
Blood Transfusions
Genetics of Blood
Your blood type is decided by genes inherited from your parents.
The human blood types are type A, type B, type O, and type AB.
Genotypes & Phenotypes
3 alleles or genes for blood type: A, B, & O.
6 possible genotypes: AA, AO, BB, BO, AB, and OO.
Dominant & Recessive
• O is recessive
• A is dominant
• B is dominant
Example: Dad has Type B blood type (phenotype) because he has a B gene (blue) and an O gene (yellow) genotype.
Mom has Type A blood because she has an A gene (red) and an O gene (yellow)
B OO
B
B
A A A OO
OOOOOOOO
Example: Dad has Type B blood type (phenotype) because he has a B gene (blue) and an O gene (yellow) genotype.
Mom has Type A blood because she has an A gene (red) and an O gene (yellow)
B OO
B
B
A A A OO
OOOOOOOO
Type A phenotype
Type O phenotypeType B phenotype
?
Co-dominant
B ATwo alleles are both dominant & show up together.
A BNot type A blood,
Not type B blood…
You get Type AB blood!
You Try: Dad has Type AB blood (phenotype) because he has an A gene (red) and a B gene (blue) genotype
Mom has Type A blood (phenotype) because she has an A gene (red) and an O gene (yellow)
A
A B
OO
You Try: Dad has Type AB blood (phenotype) because he has an A gene (red) and a B gene (blue) genotype
Mom has Type A blood (phenotype) because she has an A gene (red) and an O gene (yellow)
A
A B
B
B
A A A
OO OO OOA
Type AB phenotypeType A phenotype
Type A phenotype Type B phenotype
Blood Phenotypes & Genotypes
Type A blood•AO•AA
Type B blood•BO•BB
Type O blood•OO
Type AB blood•AB
Practice
On today’s handout, which is going to be a flap on 39…
Complete as many practice Punnetts as you can.
_____ minutes
On pg. 38…
Do a 3-2-13 New things you learned2 Interesting facts1 Question you have
______ minutes
PracticeOn today’s handout, which is going to be a flap on 39…
Complete as many practice Punnetts as you can.
_____ minutes
On pg. 38…
2 options, choose 1:Create your own question, like the ones on pg. 39, and answer it. Include a summary of today’s lesson.
Create a Punnett square, where all the offspring have the same blood type. Create a Punnett square, where all the offspring have a different blood type. Include a summary of today’s lesson.