November 7: Fast Plant Data and Revisiting Traits Inventory

Students start class by collecting data from their second generation Fast Plants, specifically the stem color and leaf color.  We will be recording this in the Fast Plant Journals from earlier this year.

Mono-Hybrid -->  one trait at a time
Di-Hybrid -->  two traits at a time

This leads to a discussion about phenotype vs. genotype and homozygous vs heterozygous.

Phenotype --> physical characteristics
Genotype --> genetics make-up
Homozygous --> same trait (allele) inherited from both parents
Heterozygous --> different trait (allele) inherited from both parents

We revisit the traits inventory and look more closely at 4 of the traits, how common they are in our class population, how common they are in the world population, and whether they are dominant or recessive.

HW: NONE  (periods 1 and 2 were supposed to complete the data on the Traits Inventory - but this is not required.)