Monday, March 7, 2011

Punnett Square practice!



I am an awesome tongue roller! (Probably Homozygous dominant = TT)


Punnett Square Practice Problems:

1) Link #1

2) Link #2

3) Link #3

Heterozygous means mixed letter..... like "Tt" or "Ss"


Homozygous means same letter.... "TT" or "ss"

There are two kinds of Homozygous......
If you have two large letters you are Homozygous Dominant "TT" etc.
If you have two small letter allels you are homozygous recessive "tt" etc.


Two more words....

Genotype means your genetic make up like TT or Tt. You are talking about the alleles or genes.

Phenotype is the actual outcome of the gene. "Tongue roller" or "Blue Eyes". It is what you see expressed.

Best of luck!!



Mr F :-)
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6 comments:

  1. MaryMarch 8, 2011 at 6:11 PM

    hey mr. forde
    A fish in your fish tank died today. One of the big ones :(
    -mary

    ReplyDelete
  2. AnonymousMarch 11, 2011 at 6:54 AM

    Mr. Forde

    another fish died from the tank and the filter is not working is like it stopped pooring water to the tank so... 1 fish died counting mary's
    comment 2 fishes I'm sorry Mr. Forde

    -DERECK

    ReplyDelete
  3. AnonymousMarch 24, 2011 at 4:59 PM

    I found out im the only tt that my parents would ever have my dad is Tt and my mom is tt.........im tt
    Its Not fair

    ReplyDelete
  4. AnonymousMarch 24, 2011 at 4:59 PM

    I found out im the only tt that my parents would ever have my dad is Tt and my mom is tt.........im tt
    Its Not fair

    ReplyDelete
  5. AnonymousMarch 29, 2011 at 7:47 AM

    hey mr.forde,
    it's sherene from highschool, Aite, :), but now i'm in india! just wanted to say what's up?

    -Sherene :y

    ReplyDelete
  6. Swathy =]March 29, 2011 at 7:08 PM

    I found out that in tongue rolling, I'm a Tt. My dad can do it, but my mom can't. My brother and I have Tt, the dominant trait. =]

    ReplyDelete