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Human Traits.

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Presentation on theme: "Human Traits."— Presentation transcript:

1 Human Traits

2 Ear Points - also called Darwin's Point

3 Tongue Rolling

4 Plays a Sport

5 Attached Ear Lobes

6 Plays an Instrument

7 Hitchhiker Thumb

8 Upturned Nose

9 Left-Handed

10 Freckles Freckles can fade with age.  People can also gain new freckles after exposure to the sun.

11 Bent Pinkies

12 Curly Hair

13 Short Big Toe

14 Blue Eyes Eye color and hair color are complicated traits in humans and controlled by multiple genes.

15 Straight Hairline John Travolta has a widow's peak.

16 Chin Dimple (......and dimples)

17 Hand Clasping, Left Thumb Over Right
Oddly, this trait has nothing to do with being left or right handed.

18 Hair on Fingers Check for tiny hairs in this area of your fingers, above the knuckle.

19 GPA of 4.0 or Above  Why are smart people often portrayed as nerds?

20 Ring Finger Longer than Index Finger
This one might be related to sex.... how many boys have this trait?   How many girls?

21 Likes Broccoli The foods we like or dislike are often related to what we are familiar with, or what we have learned to like or dislike Food preferences can change as you get older....

22 Arm Crossing - Left Over Right

23 Popularity What if there was a gene(s) that affected a person's social ability.  Would that gene make it more likely that they would become president?

24 Nearsighted

25 Gap Between Front Teeth

26 P.T.C Taster Some genes allow us to taste and experience sensations that others cannot.  Phenylthiocarbamide, also known as PTC has the unusual property that it either tastes very bitter or is virtually tasteless, depending on the genetic makeup of the taster. The ability to taste PTC is a dominant genetic trait, and the test to determine PTC sensitivity is one of the most commonly used genetic tests on humans.


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