Exploration of Human Species: A computer simulation of the classic introductory high school activity in human genetics.
GenScope Files: Human
To begin, start GenScope with the Human species file.
Look at some of the traits. Click on the magnifying glass at the
ORGANISM level. Hold your cursor over the spots on the human figures.
These spots are "hot spots" - which means that when you place the magnifying
glass on top of one of the circles, you will get a picture of what the
trait looks like. Examples: an enlarged picture of a cheek,
a thumb, and earlobe, a chin or a hairline will appear.
Your job is to figure out how each trait is inherited. You can use
the chromosome tool if you like to explore. Fill out the table below
with the alleles for each trait.
|Trait||Homozygous Dominant (TT)||Heterozygous (Tt)||Homozygous recessive (tt)|
|Polydactyly (extra fingers)|
3. Ear lobes:
4. Cleft Chin:
5. Hitchhiker's Thumb:
6. Polydactyly (Extra digit):
How do you know?
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