Thursday, December 2, 2010

Joels Scribe for 12/2/2010

Hey everyone, here's what we did today.

HOMEWORK!
35+37-38

Announcements:none

Class Time:
In class we did not do much, we talked about Dihydrid problems and then Mr.Paek gave us time to work on the unit packets.
-We were talking about crossing over, that's when two chromosomes pair up, get very close and exchange parts of each. There are 5 different kinds, we learned the second kind.




-When you try to find out the hair color or height, more then one set then you use Dihydrid. Most commonly, when you have two traits.






How to Solve Dihydrid problems


(1) Find the Genotypes and Phenotypes


Ex:Tall=T, Short=t





(2)Determine the parent genotypes


Ex:TTtt or RRrr



(3) Use the F O I L method like Mr. Paek showed us


FOIL=First,Outer, Inner,Last





(4)Put in on a Chart Like this....





















(5)Then find out the Genotype and Phenotype Ratio

That's it!

Tomorrows Scribe will be by....Zack(if he did it, then Alex)
I hope i was helpful, goodnight to all!

No comments:

Post a Comment