Wednesday, January 18, 2012

Variations on Mendel

G period:
Today we completed page 3 in the packet and learned about test crosses and pedigrees.  Spoiler Alert!  If you haven't seen the last Harry Potter movie, this pedigree will ruin the end for you.

It's not very efficient to draw complete portraits for a pedigree.  Instead scientists uses symbols (circles or squares) and shade them in to designate if an individual is affected, unaffected or a carrier.

G Period Homework - Read the post below for information on amniocentesis and chorionic villus sampling.

C period
Today we completed page 5 in the packet and learned about variations on Mendel's principles: incomplete dominance, codominance, pleiotropy and polygenic inheritance.

C period homework:  Read section 11-4 (starting on page 275) and take notes for a reading quiz.  Keep the main points of the reading in mind.  You do not need to draw the stages of meiosis, we will do an activity for this in class.

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