MadSci Network: General Biology
Query:

Re: is your smile inherited or learned?

Date: Thu Apr 28 21:21:46 2005
Posted By: Arnab Das, Undergraduate, Biology, Kendriya Vidyalaya
Area of science: General Biology
ID: 1114706468.Gb
Message:

Hi Ashston!

Its a good question. You see there's a reason why sons and daughters look 
similar to their parents (and their smiles look similar too!). Lets try and 
trace out the reason...

All of us are made up of millions and millions of tiny units called cells. 
Cells make up our whole body; just like layers and layers of bricks are 
used to build a wall.

All these cells have thread like structures called "chromosomes" in them. 
These chromosomes are carried on from one generation to the next. For 
example, you have inherited your chromosomes from your parents. These 
chromosomes contain information about how you will look as well as your 
character. Since you have got your parents' chromosomes, you look similar 
to them.

That's the reason why we find our "smiles" similar to that of our parents'. 
We certainly learn to smile, but our smile resembles our parents' smile 
because of the chromosomes we inherit from them.


For more information on chromosomes, open this site: http://www.windows.ucar.edu/tour/link=/earth/Life/genetics_inheritance.html

I hope I could clear your doubt.

Bye!
Arnab.




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