Download Genetic Baby Activity Teacher Guide

Name:
BABY LAB
Date:
Period:
*Pair Students Male with Female
Standards: Genetics 2c and 2d
Objectives:
 Students learn to differentiate phenotypes with genotypes.
 Students demonstrate and understand how alleles represent genes.
 Students know that particular alleles will be in a gamete (sperm / egg).
Background: In order to create a baby you will need a quick introduction to genetics (the study of heredity).
Below is a chart describing many traits that an individual may have. Each trait is composed of two alleles.
Two alleles make up the genotype (genetic configuration: AA, Aa, aa). The genotype configuration determines
how you look physically (phenotype= physical characteristic: shape, color, etc…). Each parent (Male &
Female) must contribute 1 allele (trait) to help create the baby. Those genotypic configurations will give a
phenotypic description of your baby. If your face shape is the genotype Ee, then your phenotype would be a
round face.
Check for Understanding:
1.
2.
3.
4.
5.
What is genetics?
Genetics is the study of heredity
“Each trait is composed of …”?
Each trait is composed of two alleles.
How many alleles does it take to create a genotype?
Two #
What is a genotype?
genetic configuration: AA, Aa, aa
What is a phenotype?
phenotype= physical characteristic : shape, color, etc…
Please use the second page of this activity to identity the following;
Identify the Phenotypes
Indentify the Genotypes
6. LL = Long Eyelash Length
7. Fine Eyebrows =
qq
8. Hh = Wavy Hair
9. Round Eyes =
aa
10. yy = Small Eyes
11. Medium Mouth =
Mm
This is a picture of a human karyotype, which represents all the
chromosomes in the each human cell.
12. How many chromosomes are in each human cell?
46
#
13. If Gamete are supposed to contain 50% of the genetic information,
then how many chromosome are found in an;
Egg Cell
23 Chromosomes
Sperm Cell 23 Chromosomes
14. According to the karyotype, is this person a Male or Female (circle)?
15. Explain your reasoning:
The Karyotype shows the 23rd
chromosome with an “X” and a “Y”. “XY” is the genotype for Male
Name:
Date:
Period:
*Pair Students Male with Female
BABY LAB
Supplies: 20 pennies
Directions: Students will need to pair up; male with female. Each student will evaluate their own phenotypes. If a student has a
round face they will choose the genotype RR or Rr (If both parents have round faces than the student most likely has RR, and if
only parent has a round face then Rr). Complete both columns (Mother & Father). Your BABY is a combination of your traits
and your partners. A penny will determine chance, and which allele with be given to your BABY, as for the genotype “Rr”.
PHENOTYPE
Dominant
Hybrid
Recessive
MOTHER
Genotype
BABY
FATHER
Genotype
Face Shape
Round (RR)
Round (Rr)
Square (rr)
rr
Rr
RR
Spacing of eyes
Close together (EE)
Normal distance
(Ee)
Far apart
(ee)
EE
Ee
ee
Shape of eyes
Almond (AA)
Almond (Aa)
Round (aa)
AA
Aa
aa
Color of eyes
Brown (BB)
Brown (Bb)
Blue (bb)
BB
Bb
bb
Size of eyes
Large (YY)
Medium (Yy)
Small (yy)
yy
Yy
YY
Eyelash length
Long (LL)
Long (Ll)
Short (ll)
Eyebrow shape
Bushy (QQ)
Bushy(Qq)
Fine (qq)
Size of nose
Large (NN)
Medium (Nn)
Small (nn)
Size of mouth
Large (MM)
Medium (Mm)
Small (mm)
Shape of lips
Thick (PP)
Normal (Pp)
Thin (pp)
“P” or “p”
Pp
(Flip
penny) ?p
pp
Earlobes
Free (FF)
Free (Ff)
Attached
(ff)
Size of ears
Large (LL)
Medium (Ll)
Small (ll)
“L” or “l”
Ll
(Flip Penny)
??
“L” or “l” Ll
Dimples
Present (DD)
Present (Dd)
Absent (dd)
Freckles
Present (KK)
Present (Kk)
Absent (kk)
Hair Texture
Curly (HH)
Wavy (Hh)
Straight
(hh)
Hair Color
Black (JJ)
Brown (Jj)
Blonde (jj)
Widows Peak
Pointed (WW)
Slighty pointed
(Ww)
Straight
(ww)
Gender



XX
(Flip Penny)
X?
“X” or “Y”
A penny will
determine
“CHANCE”
Heads=Dominant
Tails=Recessive
One Allele
Each 
XY
 One
Allele
Each
16. Who determined the gender of the child Mother or Father (Cricle One).
Explain your reasoning:
The FATHER has both an “X” and a “Y” chromosome. The MOTHER does
NOT have a choice, and will automatically give her child an “X”. The FATHER determines the GENDER.
Name:
Date:
Period:
*Pair Students Male with Female
BABY LAB
DRAWINGS WILL DIFFER WITH ALL STUDENTS 
Baby’s Name:
Mother:
D.O.B.:
/
/
Father: