This document provides genotypes for Georgette and George for 5 different genes related to traits like colorblindness, tongue rolling, eye color, hair form, and blood type. It also lists the predicted phenotypic ratios for each gene based on the genotypes and has students complete an exercise where they simulate genetic crosses by drawing colored beans from bags representing alleles to determine actual results. The document contains the genotypes, predicted ratios, and a recording table to document actual results.
Exercise I Georgettes and Georges Genotypes Gene 1 Geor.pdf
1. Exercise I: Georgette's and George's Genotypes
Gene #1
Georgette's genotype for colorblindness
X^C X^c
George's genotype for colorblindness
X^C Y
Gene #2
Georgette's genotype for tongue rolling
Tt
George's genotype for tongue rolling
Tt
Gene #3
Georgette's genotype for eye color
bb
George's genotype for eye color
Bb
Gene #4
Georgette's genotype for hair form
HCHS
George's genotype for hair form
HCHS
Gene #5
Georgette's genotype for ABO blood type
lAlB
George's genotype for ABO blood type
ii
Exercise II: Predictions
Gene #1
Expected phenotypic ratio
3:1
Expected sex ratio
1:1
Gene #2
Expected phenotypic ratio
3:1
Gene #3
Expected phenotypic ratio
1:1
Gene #4
2. Expected phenotypic ratio
1:2:1
Gene #5
Expected phenotypic ratio
1:1
Exercise III: Making Babies
Exercise IV: Results
Write the symbol for the allele, then record how many and what color beans you put in that bag for
that allele.
Gene Number
Phenotype
Predicted
Actual
Gender
Female
1
1
Male
1
1
#1
Normal Color Vision
3
9
Colorblind
1
3
#2
Tongue Roller
3
9
Non-Roller
1
3
#3
Brown Eyes
1
6
Blue Eyes
1
6
3. #4
Curly Hair
1
3
Wavy Hair
2
6
Straight Hair
1
3
#5
Blood Type A
1
Blood Type B
1
Blood Type O
1
Blood Type AB
1
Bag Number
First Allele
Second Allele
Georgette #1
W
w
Georgette #2
W
Wm
Georgette #3
W
w
Georgette #4
w
W
Georgette #5
W
Wm
George #1
W
Wm
George #2
W
4. w
George #3
w
Wm
George #4
w
W
George #5
W
Wm
Questions:
1.
2.
3.
Gene #1
Georgette's genotype for
colorblindness
X^C X^c
George's genotype for
colorblindness
X^C Y
Gene #2
Georgette's genotype for
tongue rolling
Tt
George's genotype for tongue
rolling
Tt
Gene #3
Georgette's genotype for eye
color
bb
George's genotype for eye
color
Bb
Gene #4
Georgette's genotype for hair
form
HCHS
George's genotype for hair form HCHS
Gene #5
Georgette's genotype for ABO
blood type
lAlB
George's genotype for ABO
blood type
ii