Punnet Squares Gr12 GED

Multiple Choice

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt

• Tt

• Bb

• TT

Open Ended

In a particular kind of mouse grey fur is dominant to brown fur. A cross between a heterozygous mouse and a brown mouse would produce what potential offspring?

Multiple Select

In a particular kind of mouse grey fur (G) is dominant to brown fur (g). In order to determine the potential offspring for a cross between a heterozygous mouse and a brown mouse list the gametes from the grey mouse and the gametes from the brown mouse . Check all that apply

• Grey mouse produces gametes that have G allele

• Grey mouse produces gametes that have g allele

• Brown mouse produces gametes that have G allele

• Brown mouse produces gametes that have g allele

• Grey mouse produces only the G allele gametes

Multiple Choice

What does a punnet square show us?

• The age of the offspring

• The chance of a genotype (trait) showing up in offspring

• Numbers

• Blue eyes

Monohybrid Crosses (Punnet Squares)

Multiple Choice

Genotypes are:

• Green

• Dominant only

• Recessive only

• traits that appear in offspring

Why is it important for you to know about Punnett squares?

 The answer is that they can be used as predictive tools when considering having children. Let us assume, for instance, that both you and your mate are carriers for a particularly unpleasant genetically inherited disease such as cystic fibrosis . Of course, you are worried about whether your children will be healthy and normal. For this example, let us define "A" as being the dominant normal allele and "a" as the recessive abnormal one that is responsible for cystic fibrosis. As carriers, you and your mate are both heterozygous (Aa). This disease only afflicts those who are homozygous recessive (aa). The Punnett square allows the prediction of having a child with the disease (aa).

The answer to the last question is here (the program may not have corrected you for incorrect capitalization)

• Aa x Aa

• Use this for the next question

Multiple Choice

What is the next step in completing this problem?

• Fill in the boxes in the punnett square with potential offspring

• Determine the gametes and put them on the outside of the punnett square

• Determine the potential outcome by listing genotypic and phenotypic ratios

Multiple Choice

What is the next step in completing this problem?

• Fill in the boxes in the punnett square with potential offspring

• Determine the gametes and put them on the outside of the punnett square

• Determine the potential outcome by listing genotypic and phenotypic ratios

Multiple Choice

What is the next step in completing this problem?

• Fill in the boxes in the punnett square with potential offspring

• Determine the gametes and put them on the outside of the punnett square

• Determine the potential outcome by listing genotypic and phenotypic ratios

Open Ended

In a particular kind of mouse grey fur is dominant to brown fur. A cross between a heterozygous mouse and a brown mouse would produce what potential offspring?

Multiple Select

In a particular kind of mouse grey fur (G) is dominant to brown fur (g). In order to determine the potential offspring for a cross between a heterozygous mouse and a brown mouse list the gametes from the grey mouse and the gametes from the brown mouse . Check all that apply

• Grey mouse produces gametes that have G allele

• Grey mouse produces gametes that have g allele

• Brown mouse produces gametes that have G allele

• Brown mouse produces gametes that have g allele

• Grey mouse produces only the G allele gametes

Multiple Choice

The correct punnett square on the last slide was

• A

• B

• C

• D

Multiple Choice

When Grey fur is dominant to brown fur the Genotypic Ratio for the cross between a heterozygous mouse and a brown mouse is

• GG 1: Gg 2: gg 1

• Grey 3: Brown 1

• GG 0:Gg 2:gg 1

• Grey 2: Brown 2

Multiple Choice

When Grey fur is dominant to brown fur the Phenotypic Ratio for the cross between a heterozygous mouse and a brown mouse is

• GG 1: Gg 2: gg 1

• Grey 3: Brown 1

• GG 0:Gg 2:gg 1

• Grey 2: Brown 2

Multiple Choice

A Phenotypic ratio could also be written as a phenotypic probability such as

• Grey 50%: Brown 50%

• Grey 2: Brown 2

• GG 0%:Gg 50%:gg 50%

• GG 0:Gg 2:gg 2

Multiple Choice

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt

• Tt

• Bb

• TT

Multiple Choice

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Multiple Choice

If B = brown hair and b = blonde hair, what is the probability of brown hair?

• 25%
• 50%
• 0%
• 75%

Multiple Choice

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Multiple Choice

If B = brown hair and b = blonde hair, what is the probability of brown hair?

• 25%
• 50%
• 0%
• 75%

Multiple Choice

In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?

• It is BB.
• It is Bb
• It is brown
• It is bb.

Multiple Choice

A ________________________ is used to predict the possible genotype from certain parents

• Mendel Grid
• Genetic Tic Tac Toe
• Punnett Square
• Pedigree Plot

Multiple Choice

What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 

• 50 % Brown Hair and 50% Blond Hair 
• 25 % Brown Hair and 75% Blond Hair 
• 75 % Brown Hair and 25% Blond Hair 
• 0% Brown Hair and 100% Blond Hair 

Multiple Choice

What percent of offspring will have the recessive trait?

• 25
• 50
• 75
• 100

Multiple Choice

What is a phenotype

• The genetic make up (code)
• The physical trait

Multiple Choice

What is the probability of heterozygous offspring?

• 25%
• 50%
• 0%
• 100%

Multiple Choice

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

Multiple Choice

What is the probability of homozygous dominant offspring?

• 0%
• 100%
• 50%
• 25%

Multiple Choice

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %
• 25%
• 50%
• 75%

Multiple Choice

What ratio of the offspring from the cross shown will be homozygous recessive for the  trait of tallness? 

• 0 in 4

• 1 in 4

• 2 in 4

• 4 in 4

Multiple Choice

Which of the following is a phenotype?

• Aa

• red hair

• heterozygous

• DNA

Multiple Choice

Which of the following is a phenotype?

• Aa

• red hair

• heterozygous

• DNA

Multiple Choice

Dominant alleles are represented by a:

• Male gene
• lowercase letter
• recessive trait
• capital letter

Multiple Choice

How many boxes would say BB?

• 1
• 2
• 4
• 0

Multiple Choice

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

Multiple Choice

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Multiple Choice

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Multiple Choice

If B = brown hair and b = blonde hair, what is the probability of brown hair?

• 25%
• 50%
• 0%
• 75%

Multiple Choice

In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?

• It is BB.
• It is Bb
• It is brown
• It is bb.

Multiple Choice

A ________________________ is used to predict the possible genotype from certain parents

• Mendel Grid
• Genetic Tic Tac Toe
• Punnett Square
• Pedigree Plot

Multiple Choice

What percent of offspring will have the recessive trait?

• 25
• 50
• 75
• 100

Multiple Choice

What is a phenotype

• The genetic make up (code)
• The physical trait

Multiple Choice

Both parents in this Punnet square

• are homozygous dominant
• are homozygous recessive
• are heterozygous
• have blue eyes

Multiple Choice

The genotypic ratio here is

• 25% blue eye 75 % brown eye 
• BB = 25% Bb = 50% bb = 25%
• BB= 50 % bb = 50%
• All brown eye

Multiple Choice

The dominant trait is

• yellow pea seeds
• green pea seeds
• there is no dominant seed
• Jolly green giant

Multiple Choice

To express the recessive trait you must be

• homozygous dominant

• heterozygous

• alleleerific

• homozygous recessive

Multiple Choice

bb is a _________________ genotype

• Dominant

• Homozygous

• Genotype

• Phenotype

Multiple Choice

In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?

• It is BB.
• It is Bb
• It is brown
• It is bb.

Multiple Choice

An organism's _______ describes its genetic composition. An organism's _______ describes its appearance or observable characteristics.

• phenotype; genotype
• species; heredity
• heredity; species
• genotype; phenotype

Multiple Choice

What is correct probability

• TT = 25% Tt= 50% tt=25%

• all tall

• TT= 75% tt = 25%

• Tt = 100%

Multiple Choice

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

Multiple Choice

Where do your inherited genes come from?

• offspring
• parents
• gametes
• grandchildren

Multiple Choice

This type of allele masks the recessive allele and is capital ________________

• Dominant
• Homozygous
• Genotype
• Phenotype

Multiple Choice

The dominant trait is

• yellow pea seeds
• green pea seeds
• there is no dominant seed
• Jolly green giant

Multiple Choice

What is the probability of homozygous dominant offspring?

• 0%
• 100%
• 50%
• 25%

Multiple Choice

What is the probability of homozygous recessive offspring?

• 0%
• 100%
• 50%
• 25%

Multiple Choice

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Multiple Choice

B = brown fur b = white fur

In the Punnett square, what is the probability for white fur?

• 0%

• 25%

• 50%

• 75%

Drag and Drop

A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?

Placeholder

Drag these tiles and drop them in the correct blank above

0%

25%

50%

75%

Dropdown

What is the probability of a purple-horned unicorn if a heterozygous pink-horned unicorn is crossed with a heterozygous pink-horned unicorn?

Select answer

Multiple Choice

Two parents have a heterozygous genotype for eye color. What is the chance of having a blue eye baby?

• 0%

• 25%

• 50%

• 75%

• 100%

Multiple Choice

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Multiple Choice

What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 

• 50 % Brown Hair and 50% Blond Hair 
• 25 % Brown Hair and 75% Blond Hair 
• 75 % Brown Hair and 25% Blond Hair 
• 0% Brown Hair and 100% Blond Hair 

Multiple Choice

The physical appearance of a trait is known as the-

• genotype
• phenotype
• characteristics
• intelligence

Multiple Choice

The two-letter code that describes the genetic traits of an organism is called a-

• Phenotype
• Genotype
• Physical Appearance
• Intelligence

Multiple Choice

An allele that is hidden when the dominant allele is present.

• Dominant Allele
• Gene
• Recessive Allele
• Probability

Multiple Choice

Whose traits are on the outside of the Punnett square?

• Mom

• Parents

• Dad

• Offspring

Multiple Choice

What percent of offspring show the recessive trait?

• 25

• 50

• 75

• 100

Multiple Choice

The study of how traits are inherited.

• genotype

• phenotype

• heredity

• genetics

Multiple Choice

Made of DNA that contains all the information an organism needs to grow and function.

• allele

• chromosome

• gene

• DNA

Multiple Choice

What is the top parent's genotype?

• homozygous dominant

• homozygous reccessive

• heterozygous

• superzygous

Multiple Choice

Which is homozygous dominant?

• AA

• Aa

• aa

• None of them

Multiple Choice

Which is homozygous recessive?

• AA

• Aa

• aa

• None of them

Multiple Choice

What is this diagram called?

• Venn diagram

• Punnett Square

• Probability Chart

• Phylogenetic Tree

Multiple Choice

Father of genetics; 1st person to use probability to explain heredity.

• Mendeleev

• Mendel

• Darwin

• Currie

Multiple Choice

The study of how traits are inherited.

• genotype

• phenotype

• heredity

• genetics

Multiple Choice

Capital letter; this represents the trait that always shows.

• recessive

• heterozygous

• dominant

• homozygous

Multiple Choice

Lower case letter; this represents what is hidden when a dominant allele is present

• recessive

• homozygous

• dominant

• heterozygous

Multiple Choice

Whose traits are on the outside of the Punnett square?

• Mom

• Parents

• Dad

• Offspring

Multiple Choice

What percent of offspring show the recessive trait?

• 25

• 50

• 75

• 100

Multiple Choice

What is the top parent's genotype?

• homozygous dominant

• homozygous reccessive

• heterozygous

• superzygous

Multiple Choice

Which is homozygous dominant?

• AA

• Aa

• aa

• None of them

Multiple Choice

Which is homozygous recessive?

• AA

• Aa

• aa

• None of them

Multiple Choice

Which of these is a genotype?

• Green Peas

• ATTAGCCG

• Gg

• None of these

Multiple Choice

Which of these is a phenotype?

• Green peas

• AAATCCGCTC

• Gg

• None of these

Multiple Choice

The father's genotype is _____________.

• homozygous dominant

• heterozygous

• homozygous recessive

• None of these

Multiple Choice

The mother's genotype is _____________.

• homozygous dominant

• heterozygous

• homozygous recessive

• none of these

Multiple Choice

What percentage of these offspring will be homozygous dominant?

• 25

• 50

• 75

• 100

Multiple Choice

What percentage of these offspring will be heterozygous?

• 25

• 50

• 75

• 0

Multiple Choice

Mutations are always bad

• true

• false

Multiple Choice

What describes a change in the DNA sequence?

• Transcription

• Translation

• DNA replication

• Mutation

• Apoptosis