Sunday, February 22, 2009

Another week in science...

The week in science before winter break we worked on genes and genetics. We did a "more than just peas" activities, which shows how genes are carried down from different sets of parents to their children. Most of the results turned out with something like "yy" or "rr" or "rR". We played the game when the substitute was in. We had to take notes. These are the ones I got:
-All living organisms inherit characteristics from their parents
-Each form of a gene is called an allele
-Any individual has two alleles for each gene
-And plant with two of the same alleles is called a Homozygote
-A plant with different alleles is called a heterozygote
-This gives peas a pink color because the pink is dominant
-When organisms reproduce, each parent can only pass one if its alleles for a characteristic to its offspring
-When it's passed, it's completely random

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