Timeline: Picture One 50 Minute Class Period; Presentations One 50 Minute Class Period

GENETICS: Smile for the Camera BABY!!!!!!!!!!!

Materials:

Colored Pencils or Colored Markers,

Art Paper

Pencil

1 Penny

Timeline: Picture One 50 minute class period; Presentations One 50 minute class period

Directions:

Look at the penny. Heads will always represent a dominant allele (see your Quizlet vocabulary study cards to review definitions) and tails will always represent a recessive allele.
Look at the table below and you will see the two parents. Remember “23 chromosomes from mom and 23 chromosomes from dad make ME.” You may choose to work alone or with a partner to determine genotypes and phenotypes.
Let’s use Mom as an example. You will flip your penny once. If it lands on heads circle the dominant allele. If it lands on tails circle the recessive allele.
Looking at the table the next column asks use to write the genotype. Write the genotype in the scientifically correct way capital letter first and lower case letter second. Remember the dominant allele is always written with a capital letter and the recessive allele is written as a lower case letter. Together you have the genotype for your baby’s trait.
Use the key on the last page to determine the phenotype for all the traits for your baby.
Complete the table before you begin to draw your baby.
Don’t forget to name your baby!

Mom and dad have a trait for being able to roll their tongues.

Possible alleles for Mom: RrDad: Rr

Flip your coin for mom’s first allele of the trait. It lands on tails. Circle the lower case “r.”
Flip your coin for Dad’s allele of the trait. It lands on heads. Circle the upper case “R.”
Writ the genotypefor your baby in the table. Rr
Write the phenotype for your baby. Can roll tongue

Genetics: Smile for the Camera Baby!!!!!!!!DATA SHEET

Reminder:HEADS represents a DOMINANT ALLELE

TAILS represents a RECESSIVE ALLELE

DATA TABLE for Baby Traits

TRAIT / MOM / DAD / GENOTYPE / PHENOTYPE
Shape of Head / H h / H h
Hair / S s / S s
Hair / L l / L l
Ears / C c / C c
Eyes / E e / E e
Nose / T t / T t
Freckles / F f / F f
Mouth / T t / T t
Dimples / D d / D d
Eye Color / G g / G g
Hair Color / B b / B b
Ear Color / P p / P p
Nose Color / N n / N n

Check the Phenotype Key to determine the sex of your baby!!!

Genetics: Smile for the Camera Baby!!!!!!!!Phenotype Key

DominantRecessive

Head Shape

Oval circle

Hairstraight curly

Hairlong short

Earscurved pointed

Eyesstarburst heart

Nosetriangle up triangle down

Frecklespresent not present

Mouththick thin

Dimplespresent not present

Eye ColorGreenBlue

Hair ColorBrownBlack

Ear ColorPurpleYellow

Nose ColorPinkRed

To Determine Sex:

With your shoulder partner use two coins to determine the sex of your baby.

Heads: X chromosomeTails: Y chromosome

XX = femaleXY = male

Female: Pink Bow in HairMail: Blue Bow Tie under head