Punnent squares only work if you follow the rules. Lets say you wanted to figure out the possibilities of your child having curly hair. First you must find your alleles for curly hair. In this case, it would be cc, which is hybrid. Your partner's allele for curly hair is Cc, which is recessive. To figure out the possibilities of your children having curly hair, you would correctly solve your punnent square.
The females' allele would go on the side, and the males' on the top.
(this punnent square does not correspond to the example.)
Then like multiplication, you would solve it. Top left with the first side (C and c) which would equal to Cc. Top right with first side (c and c) which would equal to cc, then top left with bottom side (C and c)equaling to Cc and then, top right with bottom side (c and c) which equals to cc. So your results are Cc, cc, Cc, and cc. Conventionally, you write the uppercase letter before the lower case letter.
These are four possible alleles for curly hair the offspring might have. The genotype of the child would be 50% hybrid and 50% pure- breed recessive. The phenotype is 50% hybrid wavy hair and 50% curly hair recessive.
Using punnent squares, Gregor Mendel, "the father of genetics", proved his theories of cross pollination. Gregor Mendel also invented the idea of cross pollination.
I think genetics is a very exciting field because there is so much going on. Cloning, designer babies, foods, it is very interesting! Personally, I think it's pretty cool to have a basic idea on how your baby will look. Using technology in the field, you can get a basic gist of your child's physical apperance and talents!
This site has a lot about Mendel and punnent squares:
http:///www.units.muohio.edu/dragonfly/family/mendel2.shtml
Pciture from: http:///www.units.muohio.edu/dragonfly/family/mendel2.shtml
1 comment:
cute blogggggggggggg..............just finished my visual for the genetics assessment (at home of course)...........well buh-bye ♥
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