Genetics Glimpse Exit Ticket
Genetics Glimpse
Lab Exit Ticket
Name:
Date:
Lab Assistant Mission: Analyze the Lumina Frog data using your genetic knowledge.
1. The Big Picture
Bright skin color is a specific of this frog. This was passed from parents to offspring through the process of .
(Apply: Trait, Heredity)
2. Gene Forms
The skin color gene has two versions: G (Glow) and g (No Glow). These versions are called:
(Apply: Allele)
3. Observation Table
Predict the phenotype (Glow/No Glow):
(Apply: Genotype, Phenotype)
4. Zygosity Sort
Sort these pairs: GG, Gg, gg
Homozygous
Heterozygous
(Apply: Homozygous, Heterozygous)
5. Power Dynamics
Explain: Why is only "Glow" visible in a Gg frog?
(Apply: Dominant, Recessive)
6. Laboratory Prediction
Cross: Gg x gg
P1 P2
G
g
g
g
What is the name of this diagnostic tool?
What % of offspring will show the recessive phenotype (No Glow)?
(Apply: Punnett Square)
Genetics Glimpse Answer Key
Genetics Glimpse
Teacher Answer Key
1. The Big Picture
Bright skin color is a specific Trait of this frog. This was passed from parents to offspring through the process of Heredity.
2. Gene Forms
Each version is called an:
Allele
3. Observation Table
| Genotype | Phenotype |
|---|
| GG | Glow |
| Gg | Glow |
| gg | No Glow |
4. Zygosity Sort
Homozygous
GG, gg
Heterozygous
Gg
5. Power Dynamics
The "G" is a dominant allele which is expressed even when only one copy is present. The "g" is a recessive allele which is hidden by the dominant one.
6. Laboratory Prediction
Cross: Gg x gg
P1/P2
G
g
g
Gg
gg
g
Gg
gg
Tool: Punnett Square
Probability: 50%
Genetics Blueprint Slides
Genetic Blueprint
Cracking the Code of Life
Unit 1.2
The Pass Down
Heredity
The passage of genetic instructions from a parent or parents to offspring.
Trait
A specific characteristic of an organism (e.g., eye color, height, skin pattern).
🧬
It's all in the family.
Alleles: Choose Your Version
B
b
An Allele is one of two or more forms that a gene could take.
Code vs. Appearance
Genotype
The genetic make-up of an organism.
"Bb"
Phenotype
The physical appearance of an organism.
👁️
"Brown Eyes"
Power Dynamics
DOMINANT
The allele that is always expressed when present. (Upper case letters: T)
recessive
The allele only expressed when the dominant allele is absent. (Lower case letters: t)
The Pairings
Homozygous
Having 2 alleles that are the same.
TT tt
Heterozygous
Having 2 alleles that are different.
Tt
Punnett Squares
Probability Predictor
T
t
T
TT
Tt
t
Tt
tt
A diagram used to show the possible offspring of 2 parents.
"Predict the genotype and phenotype ratios using simple probability."
