Potato Head Genetics Gina Ford & Jennifer Hladun Twelve ...
Potato Head Genetics Gina Ford & Jennifer Hladun Twelve Bridges Middle School Lincoln, California Overview ~Cumulative Assessment Project Assignment Points (C cooperatively with classmate) Assessment Points (I Individual application) ~3 Generations of Potato Heads Parent Chromosomes of Mr. and Ms. Potato Head
Mr. & Ms. Potato Head Spud/Spudette ~ 4-5 days in length Background Knowledge ~DNA ~Dominant ~Patterns of Inheritance ~Recessive ~Punnett Squares ~Genotype
~Genes on Chromosomes ~Phenotype ~Karyotype 7th Grade Genetic Standards 2 - A typical cell of any organism contains genetic instructions that specify its traits. 2b Sexual Reproduction produces offspring that inherit half their genes from each parent 2d Students know plant and animal cells contain many thousands of different genes and typically have two copies of every gene. The two copies (or alleles) of the gene may or may not be identical, and one may be dominant in determining the phenotype while the other is recessive. 2e- DNA (deoxyribonucleic acid) is the genetic material of living organisms
and is located in the chromosomes of each cell Lets Get Started 1. Bag full of supplies (scissors, pencil, color pencils, glue, hair, sex cells, 7 envelopes with chromosomes, empty baggie, laminated potato head pieces list) 2. Mr. Potato Head Silly Suitcase 3. Construction paper folder for todays short course
4. Folder of blackline masters. *Electronic copies can be found on our website-addresses are in your blackline masters folder Please take out 1. All items out of your bag full of supplies (scissors, pencil, color pencils, glue, hair, sex cells, 7 envelopes with chromosomes, empty baggie, laminated potato head pieces list) 2. Open your Mr. Potato Head suitcase (need scissors)
3. Using your laminated potato head pieces list add all of those items into your empty plastic baggie (everything your are not using goes back into your silly suitcase) Mr. Potato Head (C) 1. Pull parent chromosomes (one male and one female from each envelope) 2. Record inherited alleles in genotype column
3. Correctly return parent chromosomes 4. Using the table, record the phenotype for each of Mr. Potatos genotypes 5. Construct Mr. Potato Head 6. Draw Mr. Potato Heads with his inherited traits on your worksheet Ms. Potato Head (C) 1. Pull parent chromosomes (one male and one female from each envelope)
2. Record inherited alleles in genotype column 3. Correctly return parent chromosomes 4. Using the table, record the phenotype for each of Ms. Potatos genotypes 5. Construct Ms. Potato Head 6. Draw Ms. Potato Heads with her inherited traits on your worksheet Punnett Squares (I) 1. Using your Mr.(blue) and Ms. (pink) completed
worksheets, add the correct genotype for each trait to the correct punnett square 2. Complete each punnett square and the probability data for the offspring. 3. In the marked punnett square box, color code which allele came from Ms. Potato head (pink) and which allele came for Mr. potato head (blue) 4. Circle which phenotype your offspring will have (use marked punnett square) on your probability data boxes
Spud/Spudette (I) 1. Using the marked box on your punnett square record your spud/spudettes genotype and phenotype on the worksheet 2. Double check your work. Fix any errors! **Make sure you record the correct phenotype for Hat/Hair depending on if your offspring is male/female 3. Draw in your baby spud/spudettes inherited traits on the worksheet.
Sex Cells (I) **you can do this before spud/spudette, but we find they lose the sex cells before they glue them on their poster 1. Using your punnett square worksheet, fill in the male sex cell with the alleles Mr. Potato head passed on to his offspring. 2. Using the same process, fill in the female sex cell with the alleles Ms. Potato head passed on to her offspring. Poster (I)
1. Carefully cut out Mr. Potato, Ms. Potato, and baby spud/spudette along with their genetic information (gentoype/phenotype chart) 2. Glue mom, dad and baby spud/spudette down on your poster. Make sure the chart is with the correct potato! 3. Glue the sex cells next to your baby spud/spudette 4. Add family name (The____Family) 5. Add first names for all 3 members of your potato family
Written Summary (I) Complete using the word bank Double check your answers/READ your summary before turning it in! Written Assessment (I) Complete 4 questions Grading #1 2 pts (what/why) #2 4 pts (1/2 point per allele pair) #3 2 pts (what/why)
#4 2 pts (application drawing connections) *We also included a copy of a grading rubric in your blackline masters folder. Feedback/Wrap Up On the blank mini potato heads Please take a moment to provide us with any feedback or questions you may have. If you would like a response to your question, please include your email address and we will contact you as soon as we can with an answer.
Contact Information ~Thank you for attending our presentation. ~You can find the powerpoint and all of the handouts on our websites. ~Please contact us with any questions and/or new ideas. Gina Ford - [email protected] http://tbms.wpusd.k12.ca.us/subsites/Gina-Ford/ Jennifer Hladun - [email protected] http://tbms.wpusd.k12.ca.us/subsites/Jennifer-Hladun
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