Inheritance WebsitesDNA and Genetic Inheritance
This website gives a good overview of what DNA is and how it is passes down from parents. Genetics This website from Ohio State University has many graphics of different things to do with genetics. Basic Principles of Genetics On this website you can learn about how Mendel learned about genetics through plants. |
Inheritance YouTubes
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Alien Inheritance!
Pedigrees
different_pedigrees_.pdf | |
File Size: | 163 kb |
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When reading pedigrees it is important to ask yourself the two following questions:
1) Is there a gender bias? This means is there a higher number of one sex being affected than the other?
2) Are there parents that are unaffected but their children are affected?
Blood Type
WebsiteGenes and Blood Type
On reb blood cells there are agglutinogens, a type of antigen, that are distinct molecules. There are two different types A or B, these create the ABO blood type classification because each have a different property that create the surfaces of the red blood cells. The next level of the ABO blood type classification is the Rh protein. With this every blood type is either positive, which means there is Rh protein, or negative, which means there is no Rh protein present. |
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The Law of Segregation
Image from: http://science.halleyhosting.com/sci/soph/genetics/notes/segregation.htm
The Law of Segregation was the first law that Mendel came up with. It states that two alleles that are in a pair are divided into separate gametes during the gamete formation or Meiosis 1. This means that an egg or a sperm will only get one of the two alleles that are produced.
Information from: Campbell, Neil A., and Jane B. Reece. Biology. New York: Custom Publishing, 2008. Print.
and study guide.
Information from: Campbell, Neil A., and Jane B. Reece. Biology. New York: Custom Publishing, 2008. Print.
and study guide.
The Law of Independent Assortment
Image from: http://blog.canacad.ac.jp/bio/BiologyIBHL1/3094.html
The law of independent assortment is the second law that Mendel discovered. This law deals with when homologous pairs line up in no pattern or order during Meiosis 1 causing many different genetic variations.
Information from: Campbell, Neil A., and Jane B. Reece. Biology. New York: Custom Publishing, 2008. Print.
and Study Guide
Information from: Campbell, Neil A., and Jane B. Reece. Biology. New York: Custom Publishing, 2008. Print.
and Study Guide
Punnett Squares
Monohybrid Cross
Image from: http://www.rosyboas.to/GettingStarted/1-Design/genetics%20page.htm
In a monohybrid cross the parents are both heterozygous for the trait.
Ratios possible from this type of cross are 1:1 or 1:3.
Information from: Campbell, Neil A., and Jane B. Reece. Biology. New York: Custom Publishing, 2008. Print.
Ratios possible from this type of cross are 1:1 or 1:3.
Information from: Campbell, Neil A., and Jane B. Reece. Biology. New York: Custom Publishing, 2008. Print.
Dihybrid Cross
Image from: http://www.biology.arizona.edu/mendelian_genetics/problem_sets/dihybrid_cross/03t.html
For a Dihybrid cross, the parents are both heterozygous for two genes. Ratios possible from this cross are 1:1:1:1 or 9:3:3:1
Information from: Campbell, Neil A., and Jane B. Reece. Biology. New York: Custom Publishing, 2008. Print.
Information from: Campbell, Neil A., and Jane B. Reece. Biology. New York: Custom Publishing, 2008. Print.