Download WHY DO YOU LOOK THE WAY YOU DO? Genetics

WHY DO YOU LOOK THE WAY
YOU DO?
Genetics
Physical Traits
Can be seen by others
Eye color, hair color, height,
left handed
Acquired Traits
Learned skills
Playing a sport, riding a bike,
playing a musical instrument
Behavioral Traits
Instinctual actions
Nest building and migration
Physical Traits
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1. Earlobes- Attached or Detached
2. Can You roll your tongue?
3. Do you have dimples?
4. Left or right handed
5. Straight or Curly Hair
6. Cleft Chin
7. Hand clasp- right or left thumb on top?
8. Color Blindness
Physical Traits cont..
9. Eye Color
10. Widow’s Peak
11. Finger stacking
12. Hitchhiker Thumb
What many consider to be the greatest discovery of the 20th
century is the discovery of DNA by Francis Crick and James
Watson.
What are common uses of DNA today?
DNA evidence from crime scenes
genetic engineering of plants
cloning of research animals
genetic screening for hereditary diseases
paternity tests
The shape of DNA is a double helix. It is made of a sugar
phosphate backbone and nitrogen base pairs. DNA is our
unique blueprint. The base pairs A, C, G, and T make
a code for our body to produce proteins.
A section of DNA on a chromosome is a gene. We have over
25,000 genes on our 23 pairs of chromosomes.