5/5 & 5/8: Simple dominance portfolio entry

Today, students took lecture notes on Genetic Variation. Following this, we did one more round of practice of more complex Punnett Squares.

Genetic variation lecture worksheet
Genetic variation power point
Exceptions review practice problems worksheet

For the last part of class we introduced the "Simple Dominance" or "Complete Dominance" Punnett squares that students will be adding to their personal portfolios. Students will choose one simple dominance trait and identify what is true for them. For homework, we would like students to determine information for this trait and how they personally express it. In addition, if possible, students should identify how their family members express this trait. From this information we will start to record phenotypes, and possible genotypes for ourselves and our family members.

Please Remember…

Our families take a lot of different forms. If you have any questions or concerns about completing any portion of this assignment, please check in with us! We are more than happy to trouble-shoot or propose alternative options for this portion of the portfolio.  Mrs. Yee & Mrs. Polzin

Step one: Choose a trait you want to examine!

Possible “Complete Dominance” (aka Simple Dominance) traits:

Trait	Dominant	Recessive
Cleft chin	cleft	smooth
Freckles	Freckles	no freckles
Ear lobes	Detached	Attached
Tongue rolling	Rolling	Can't roll
Cheek dimples	Dimples	no dimples
Widow’s peak	Peak	Straight hairline
Bent little finger	Last knuckle, pinkies bend away from each other	straight pinkies
Hitchhiker’s Thumb	thumb knuckle relatively straight	bending thumb to a 90degree angle
Long Palmar Muscle	long palmar absent	Has long palmar
Mid-digit finger hair	hair	no hair on middle section of fingers
Achoo syndrome	sneezing in bright light	not sneezing
Red hair	not red	red
Rh factor (blood)	+	-
Ear wax	wet	dry
Albinism	not albino	albino
Lactose intolerance	lactose persistant	lactose intolerant in adulthood

Step 2: In your blue "Genetics & Identity" portfolio, include the following items:

❏     Trait ❏     My phenotype ❏     My genotype ❏     Dominant allele (phenotype) ❏     Recessive allele (phenotype) ❏     My Punnett square

❏     My biological parents’ phenotypes (optional) ❏     My biological parents’ genotypes (optional) ❏     Reflection: Why did you choose this trait? How does this Punnett square show you? Would you want your offspring to have this trait?

  Step 3: Here is the grading rubric we will use. Double check that you were thorough and are doing high quality work!

Criteria	1 Needs improvement	2 Emerging	3  Proficient	4  Advanced
Complete dominance Punnett square and reflection	Punnett square is incorrect or missing. Reflection is not related to the trait chosen or not completed.	Punnett square may have a mistake. Reflection is connected to the traits chosen but not thoughtfully written.	All components are present. Punnett square is complete and accurate. Reflection is thoughtful with superficial evidence to support reasoning.	All components are present. Punnett square is complete and accurate. Specific evidence is used in reflection to support reasoning behind choosing the trait.