Download Monster Genetics Lab

Name: ____________________________
Period:
Date: ___________
Monster Genetics (female)
Heredity is the passing on of traits, or characteristics, from parent to offspring. The units of heredity are called
genes and different versions of the same gene are called alleles. The combinations of genes and their alleles for
each trait occur by chance.
Important vocabulary:
Heredity
Allele
F2 generation
Sex-linked Inheritance
Phenotype
Gene
Chromosome
Co-dominant Inheritance
Genotype
Trait
Punnett square
Incomplete Inheritance
Dominant
P generation
Homologous
Mendelian Inheritance
Recessive
F1 generation
Chromosome
After completing your pre lab you should be familiar with four patterns of inheritance: Sex-linked Inheritance, Codominant Inheritance, Incomplete Inheritance, Mendelian Inheritance.
In this investigation, you will create a monster and observe how based on various patterns of inheritance and
different allele combinations certain traits are produce.
Part One: Make your Monster
1. Flip a coin twice to determine the genotype for each trait and record it in the data table.
Heads = allele 1, Tails = allele 2 (Example: if you flipped heads twice, your monster will have two
copies of allele 1 for his genotype.)
2. Determine the phenotype resulting from the allele pair for each trait.
3. Repeat steps 1-2 for each trait and complete your monster.
4. Draw a picture of your monster in the space provided.
5. You have a Female Monster Give your monster a name.
Table 1: Genotypes & Phenotypes for Female Monster
Unless otherwise noted all traits result from Simple Mendelian Inheritance.
Trait
Allele 1
Allele 2
Genotype
Eye
Two small eyes (E)
One large eye (e)
Eye Color (Incomplete)
Red (R)
White (R’)
Nose
Skin Color (Co-dominant)
Hair on top of head
Small (N)
Green (G)
Yes (H)
Large (n)
Blue (B)
No (h)
Body Shape
Oval (B)
Square (b)
Tail Shape
Curly (C)
Straight (c)
Tail Color (Sex-linked)
Tail
Teeth (Co-dominant)
Feet
Purple (XP)
Have tail (T)
Sharp (S)
Four toes (F)
Orange (Xp)
No tail (t)
Round (R)
Three toes (f)
Horn Color
Ear shape (Sex-linked)
Purple (W)
Pointy (XA)
White (w)
Round (Xa)
Ears
Claws (incomplete)
Four ears (E)
Long (L)
Two ears (e)
Short (L’)
Phenotype
Monster Genetics (male)
Heredity is the passing on of traits, or characteristics, from parent to offspring. The units of heredity are called
genes and different versions of the same gene are called alleles. The combinations of genes and their alleles for
each trait occur by chance.
Important vocabulary:
Heredity
Allele
F2 generation
Sex-linked Inheritance
Phenotype
Gene
Chromosome
Co-dominant Inheritance
Genotype
Trait
Punnett square
Incomplete Inheritance
Dominant
P generation
Homologous
Mendelian Inheritance
Recessive
F1 generation
Chromosome
After completing your pre lab you should be familiar with four patterns of inheritance: Sex-linked Inheritance, Codominant Inheritance, Incomplete Inheritance, Mendelian Inheritance.
In this investigation, you will create a monster and observe how based on various patterns of inheritance and
different allele combinations certain traits are produce.
Part One: Make your Monster
1. Flip a coin twice to determine the genotype for each trait and record it in the data table.
Heads = allele 1, Tails = allele 2 (Example: if you flipped heads twice, your monster will have two
copies of allele 1 for his genotype.)
For the sex linked traits heads = X chromosome with allele A, Tails = X chromosome with allele B
2. Determine the phenotype resulting from the allele pair for each trait.
3. Repeat steps 1-2 for each trait and complete your monster.
4. Draw a picture of your monster in the space provided.
5. You have a Male Monster Give your monster a name.
Table 1: Genotypes & Phenotypes for Male Monster
Unless otherwise noted all traits result from Simple Mendelian Inheritance.
Trait
Allele 1
Allele 2
Eye
Two small eyes (E)
One large eye (e)
Eye Color (Incomplete)
Red (R)
White (R’)
Nose
Skin Color (Co-dominant)
Hair on top of head
Small (N)
Green (G)
Yes (H)
Large (n)
Blue (B)
No (h)
Body Shape
Oval (B)
Square (b)
Tail Shape
Curly (C)
Straight (c)
P
p
Tail Color (Sex-linked)
Tail
Teeth (Co-dominant)
Feet
A=Purple (X ), B= Orange (X )
Horn Color
Ear shape (Sex-linked)
Purple (W)
A=Pointy (X ), B= Round (X )
White (w)
Y
Ears
Claws (incomplete)
Four ears (E)
Long (L)
Two ears (e)
Short (L’)
Have tail (T)
Sharp (S)
Four toes (F)
A
a
Y
No tail (t)
Round (R)
Three toes (f)
Genotype
Phenotype
Part Two: Making Monster Babies
The female and male monsters at each table are getting married and they plan to have baby monsters.
They are interested in finding out the probabilities of which traits their offspring will have.
Complete Punnett squares to predict what traits would result from a cross between your two monsters.
Write out the genotypic & phenotypic ratios for eyes, body shape, Tail, & horn color.
Eyes
________ x ________
Teeth
Genotypic ratio ________________
Phenotypic ratio ________________
Body Shape
________ x ________
Nose
Genotypic ratio ________________
Phenotypic ratio ________________
Tail
________ x ________
Feet
Genotypic ratio ________________
Phenotypic ratio ________________
Horn color
________ x ________
Hair
Genotypic ratio ________________
Phenotypic ratio ________________
Skin color
eye color
Tail color
1. How many different genotypes for horn color could be produced in your monsters’ offspring?
2. What is the probability of your offspring producing a female carrier for round ears?
3. Write out three possible parental crosses that could produce a child with a heterozygous genotype for
tail shape (Cc).
Critical Thinking and Application: ANSWER IN COMPLETE SENTENCES!!!
1. How might it be possible for the baby monster to show traits that neither of the parents exhibit?
a. Could your Monsters produce offspring that had traits that neither of the parents
exhibited? Which trait(s).
2. Do you think the baby monster could have some traits of the grandparents?
3. A small monster colony has a large amount of monsters that have an abnormal amount of horns.
Why might this trait be so prevalent in this colony?
Using you’re the Punnett Squares you have made crossing the male and female monsters at your table
draw an offspring on the designated paper. NOTE: you may need to complete a couple more Punnett
squares in order to have one for every monster trait.
When you are finished drawing your monster baby compare your monster baby with the monster babies
made using the same parent monsters at your table. While your monster babies may resemble each
other they should not be identical. Which of Mendel’s Laws is demonstrated here? Explain
Female Monster
Male Monster