Environmental Influences On Genetics
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Transcript of Environmental Influences On Genetics
The Effect of Alcohol on a
Developing Brain
The Effect of Alcohol on a Developing Brain
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Starvation: The Impact of the
Environment on Genetics
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Tobacco and Your Lungs
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Thalidomide Baby
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In the 1950's and 60's women in many
countries prescribed thalidomide as a sedative
and to help with morning sickness. The drug
causes terrible birth defects and the children
of pregnant women taking the drug were often
born with horrible malformations including
shortened arms, hands extending directly from
the shoulder, and the absence of the thumb
and the adjoining bone in the lower arm.
15,000 children worldwide were born with
these serious defects before the drugs were
pulled off the market.
HIV, illegal drugs, Gonorrhea
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Ozone
The ozone layer reflects or absorbs 99% of damaging UV rays from the sun, preventing them from reaching the earth’s surface. However, pollution is compromising the ozone layer allowing more and more of the UV rays to reach the earth’s surface.
The ozone layer is a protective covering that surrounds most of the earth and protects us from harmful UV rays. It has three oxygen atoms, rather than two oxygen atoms like the form of oxygen we breathe during respiration.
There are a number of activities and events that cause ozone destruction. Hydrogen bomb testing
CFCs (chlorofluorocarbons) in aerosols and refrigerants
Exhaust gases from supersonic aircraft
Fertilizers and
Volcanic eruptions.
You Can Control Your Environment
HIV can be passed from mother to child during delivery. About ½ of infected mothers will pass HIV to their child during childbirth
Newborns of crack cocaine mothers are born addicted to the crack. They experience tremors, seizures, and other withdrawal symptoms.
Gonorrhea and syphillis are transmitted to the eyes of the newborn causing blindness.
Some STDs have no cure and are common (e.g., genital herpes).
Protect the Ozone
Genetic or Environmental?
1. Skin cancer
2. Widow’s peak
3. 6 fingers
4. Lung cancer
5. Thalidomide baby
6. Eye color
7. Radiation
8. Webbed fingers
9. Diabetes
10. dwarfism