Punnett Squares Guided Notes

Open Ended

Define Heredity in your own words.

Open Ended

Let's Review! What is the relationship between chromosomes and DNA?

Labelling

Label the correct location of the genetic material.

Drag labels to their correct position on the image

Nucleus

Gene

DNA

Chromosome

Open Ended

What do you think the words genotype and phenotype mean in this picture?

Open Ended

What does the allele indicate in this pair of homologous chromosomes?

Multiple Choice

How many copies of the allele is needed for the trait to show?

• One

• Two

• None

• Three

Multiple Select

Using the table here, if a cow only had the dominant phenotypes, what traits would be shown? Select all that apply.

• No horns

• Horns

• Black Coat

• Red Coat

• White Face

Multiple Select

Individual cows who do not show phenotypes related to recessive traits could have what types of genotypes? Select all that could be true.

• homozygous dominant (AA)
  

• heterozygous (Aa)

• homozygous recessive (aa)

Multiple Choice

What is the phenotype for a heterozygous flower?

• Purple

• White

• BB

• Bb

• bb

Multiple Choice

What is the genotype for a homozygous recessive flower?

• Purple

• White

• BB

• Bb

• bb

Categorize

Options (3)

Bb

BB

bb

Match each genotype with the correct label.

Homozygous Dominant

Homozygous Recessive

Heterozygous

Multiple Choice

If the "A" represents red flowers and "a" represents green flowers, what are the chances of the flowers being green?

• 25%

• 50%

• 75%

• 100%

Draw

Fill in the boxes for each genotype.

Multiple Choice

What percentage will of the pea pods will be yellow?

• 25%

• 50%

• 75%

• 100%

Multiple Choice

What percentage will of the pea pods will be green?

• 25%

• 50%

• 75%

• 100%

Draw

Cross the two parent cats and determine the percent chance the offspring will have a long tail.

1) Draw the alleles in each box of the Punnett Square.

2) CIRCLE the percentage that the offspring will have a long tail.

Open Ended

Cat fur color is a combination of many genes and cannot be calculated with one Punnett square. Cat fur length, however, is a one gene inherited trait where short hair (L) is dominant to long hair (l).

Based on the facts above, why are most stray cats short hair cats, but a variety of colors?

Open Ended

Cat fur color is a combination of many genes and cannot be calculated with one Punnett square. Cat fur length, however, is a one gene inherited trait where short hair (L) is dominant to long hair (l).

Based on the facts above, can two long hair cats have short hair kittens? Why or why not?

Open Ended

Explain how Punnett squares are used to describe the genetic relationship between parent to offspring.