Genetics
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| Term Paper Title | Genetics |
| # of Words | 1208 |
| # of Pages (250 words per page double spaced) | 4.83 |
Genetics
When you finish this article, you'll be older than when you
started it! That's because growing older is a gradual, life-long
process. Aging starts at the moment you are born.
How old is old? You may think you're young, but someone
your age is old to a baby brother or sister. The longest human
life span -- the length of time between birth and death -- isn't
more than 120 years, and hasn't changed much over the
course of history. But life expectancy -- the average length of
time a person of a particular age may expect to live -- has
changed dramatically.
If you were born in 1900 in this country, you could have
expected to live 47 years. A baby born today can expect to
live almost 76 years. Better nutrition and clean drinking water
as well as biomedical discoveries such as the immunizations
you get to prevent measles and other diseases and medicines
that treat strep throat have all brought about this change.
We all age differently. Some people get deep wrinkles, others
don't. You can get clues about how you will age by studying
your parents and grandparents. Scientists believe that
heredity, or the passing of traits from parents to their children,
is responsible for about 30% of the differences in life
expectancy.
Genetics
Next time you're at a family gathering, noti
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