Download NOTE*​ The table/key with the dominant and recessive alleles is on

 1 Step 1 Copy the table below into your notebook Gene​
(trait) Phenotype​
(physical trait you can see) Genotype​
(2­letter allele combination for the gene) Sex Fur color Nose shape Teeth shape Spots Ear shape Step 2 Decide which allele (choice) you want in your dog. Then, write the ​
phenotype​
(physical trait) in words in the middle column and write the 2­letter ​
genotype​
(2­letter allele combination) in the column to the far right. There is an example below. EXAMPLE TABLE​
: Gene​
(trait) Phenotype​
(physical trait you can see) Genotype​
(2­letter allele combination for the gene) Sex male XY Fur Color orange pp *NOTE*​
The table/key with the dominant and recessive alleles is on page 2. 2 Key/Table Gene (trait) Sex Alleles (choices) Dominant Allele Male or Female Male (Y) Female (X) Purple or Orange Purple (P) Orange (p) Nose Shape Circle or Oval Oval (O) Circle (o) Teeth Shape Triangle or Square Triangle (T) Square (t) Spots Spots or No Spots No Spots (N) Spots (n) Triangle or Half Circle Half Circle (H) Triangle (h) Fur Color Ear Shape Recessive Allele 3 Step 3 Get a piece of construction paper (orange or purple depending on the color you chose for your dog). Step 4 Use the table you just created in your notebook to draw your dog. When you are finished drawing the dog and all of its traits cut it out. Write the ​
genotype​
(2­letter allele combination) on the back of the dog. 4 Step 5 You and your partner should make 6 punnett squares in one of your notebooks. Step 6 Use the ​
genotypes​
(2­letter allele combination) from each dog to fill in the punnett squares. 5 Step 7 Copy the table below into one of your notebooks. 6 Step 8 For the 6 genes (traits) you will flip a coin twice to determine the allele (choice) for each puppy. The coin flipping rules are: HEADS & HEADS​
: use the choice in the ​
upper left​
box of the punnett square HEADS & TAILS​
: use the choice in the ​
upper right​
box of the punnett square TAILS & TAILS​
: use the choice in the​
lower left​
box of the punnett square TAILS & HEADS​
: use the choice in the ​
lower right​
box of the punnett square EXAMPLE for PUPPY #1 What will the sex be? Flip the coin twice. If you get a ​
heads and then a tails​
use the trait in the ​
upper right​
box of the punnett square. Do this for all 4 of the puppies. Step 9 Get construction paper for your puppies. Create the offspring like you created the parents (draw the traits on the front, write the sex on the back). EXTENSION Create a 7th gene for the puppies: ​
WHISKERS​
. Gene​
: ​
whiskers The alleles for ​
whiskers​
are ​
codominant​
. This means that neither is dominant or recessive. Instead, both are dominant and if they both are donated from the parents then they both will show up in the offspring. The ​
codominant​
​
whiskers​
alleles for our puppies are: ● straight (S) ● curly (C) 1. Create the ​
genotypes​
(2­letter allele combinations) for each parent. 2. Create a punnett square using the ​
genotypes​
from each parent. 3. Use the coin­flipping rules to determine which ​
whiskers​
will show up in which offspring. 4. Draw the ​
whiskers​
in the offspring. 7 EXTENSION Create a 7th ​
CODOMINANT​
gene for the puppies: ___________________ Gene​
: _________________ The alleles for ___________are ​
codominant​
. This means that neither is dominant or recessive. Instead, both are dominant and if they both are donated from the parents then they both will show up in the offspring. The ​
codominant​
______________alleles for our puppies are: ● _______________ ● _______________ 1. Create the ​
genotypes​
(2­letter allele combinations) for each parent. 2. Create a punnett square using the ​
genotypes​
from each parent. 3. Use the coin­flipping rules to determine which ​
whiskers​
will show up in which offspring. 4. Draw the _____________ in the offspring.