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Sunday, October 7, 2012
Potato Head Genetics
This activity is to help introduce genetics and Punnett Squares using the toys Mr. and Mrs. Potato Head. I created it in my first years of teaching and had a lot of fun with it. I updated this to create a free download of the activity from my Teachers Pay Teachers store.
Labels:
activity,
biology,
free,
genetics,
heredity,
Teachers Pay Teachers,
worksheets
Dropping Your Genes
This is an activity that I learned of when I student taught. I took the worksheet and revamped it to make it less confusing for students. The only bummer is I cannot figure out how to post it all so it looks like it would in Word or a PDF. The only part that is is missing is the page with the chromosomes on it.
This is a nice introduction activity for middle school or high school when you begin the discussion of heredity.
Name:
_____________________________
Genes Activity
Procedure:
- Determine your phenotype (outward trait) and then the genotype (alleles present for trait) for each trait and record in the given column. If you are unsure if you are homozygous (AA) or heterozygous (Aa) for a trait, consider yourself heterozygous.
- Transfer your genotypes to the chromosomes by writing one allele in each box on the corresponding chromosome.
- Initial your chromosomes.
- Cut out the chromosomes and fold them on the dotted lines.
- Pair up with another student of the opposite sex.
- Partners hold their chromosomes in the air and drop them on the table.
- Record the alleles for each trait that appear face up on the chromosomes between both partners.
- Repeat the steps 6 & 7 for additional children.
Traits
Chromosome #1
Skin
pigment: Normal= N Albino= n
Tongue
curler: Curler= C Noncurler= c
Chromosome #2
Ears lobed: Lobed= L
Attached=
l
Chromosome #3
Polydactyly: 6 fingers/toes= P
5
fingers/toes= pp
Freckles: freckles= F
No freckles= f
Chromosome #4
Hairline: widow’s peak= W
Straight
across= ww
Dwarfism: short stature= D
Normal
height= dd
Chromosome #5
Mid digital
hair: hair= H
No
hair= hh
Chromosome #6
Height: 6’+= TT
5’-6’=
Tt
Under
5’= tt
My Traits
Phenotype Genotype
Skin
Tongue
Ears
Polydactyly
Freckles
Hairline
Dwarfism
Mid digit
Height
Chromosome #7
Nose size: normal=P
Big=
pp
Chromosome #8
PKU
disease: healthy= K
PKU=
kk
Chromosome #9
Tay Sachs
disease: healthy= T
Tay
Sachs= tt
Huntington’s
Disease: Disease= H
Healthy=
hh
Eye color: brown (or green)= B
Blue=
bb
Chromosome #10
Sex: female= XX
male=
XY
Phenotype Genotype
Nose
PKU
Tay Sachs
Huntington’s
Eye
sex
Child #1
Genotype Phenotype Genotype Phenotype Genotype Phenotype
1) 1) 2)
3) 3) 4)
4) 5) 6)
7) 8) 9)
9) 9) 10)
Child #2
Genotype Phenotype Genotype Phenotype Genotype Phenotype
1) 1) 2)
3) 3) 4)
4) 5) 6)
7) 8) 9)
9) 9) 10)
Child #3
Genotype Phenotype Genotype Phenotype Genotype Phenotype
1) 1) 2)
3) 3) 4)
4) 5) 6)
7) 8) 9)
9) 9) 10)
Labels:
biology,
chromosomes,
genetics,
heredity,
life science,
worksheets
Saturday, August 18, 2012
American Chemical Society
I just discovered this fantastic resource for middle school physical science:
middleschoolchemistry.com
middleschoolchemistry.com
Tuesday, July 3, 2012
Teacher Appreciation Week!
I am doing some research on when sales are and here is what I found in order of date:
Staples- Depends on location; Free gift bag with coupon
Office Depot- Depends on location; 20% off, breakfast and give aways
Worksheet and Lesson Plan Resources
There are many free websites that I have stumbled upon that share free ideas. Here is a couple valuable ones, no matter your subject.
- http://sciencespot.net/: Labs, PowerPoint, and worksheets
- http://www.biologycorner.com/: Labs, worksheets, pictures, and video worksheets
- http://www.mysciencebox.org/: Unit plans with excellent ideas for photosynthesis/cellular respiration and others
- http://science-class.net/: Resources for middle school teachers such as lab ideas for many subjects
Labels:
free,
labs,
online resources,
PowerPoint,
unit plans,
worksheets
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