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WorksheetsPunnett Square and Pedigree Chart
Total questions: 15
Worksheet time: 15mins
What is a tool used to predict which genes an offspring can inherit?
Punnett Square
Pedigree Chart
Genetic Chart
Family Square
This pedigree shows how left handedness has been passed. Can Mike and Molly have a left handed child?
No, their child can't be left handed.
There is not enough information to tell.
Yes, they can have a left handed child.
They can have a left or right handed child.
Which statement about this Punnett square is NOT true?
There is a 50% of offspring with green pods.
The offspring have a 50% chance of inheriting a dominant gene.
The parents are heterozygous.
Each parent carries at least one recessive gene.
Which statement about this Punnett square is true?
All of the offspring will have brown eyes.
1 parent has brown eyes and the other has blue.
Both parents have blue eyes.
They have a 25% chance of offspring with brown eyes.
Which statement about this Punnett square is NOT true?
parent is heterozygous, the other is homozygous.
The offspring have a 50% chance of being homozygous.
The offspring have a 50% chance of having blue eyes.
50% of the offspring be homozygous for brown eyes.
Which statement about this Punnett square is true?
Both parents have yellow pods.
All of the offspring will inherit at least 1 yellow pod gene.
The parents are both heterozygous.
Yellow pods is a dominant trait.
How many female carriers are in this pedigree?
2
5
3
4
What does each box in a Punnett square represent?
100% chance of possible genes from the parents.
50% chance of possible genes from the parents.
25% chance of possible genes from the parents.
75% chance of possible genes from the parents.
What does a fully colored in circle or square on a pedigree represent?
Someone who carries a gene for the trait.
Someone who has the trait.
Someone who has no genes for the trait.
Someone who has reproduced.
What does a half shaded in circle or square represent on a pedigree?
Someone who carries a gene for the trait.
Someone who has the trait.
Someone who has no genes for the trait.
Someone who has died.
What do the circles and squares represent on a pedigree chart?
Squares have the trait, circles are carriers.
Squares are females, circles are males.
Circles are females, squares are males.
Circles have the trait, squares are carriers.
Which statement about this Punnett square is NOT true?
The parents genotypes are both Bb.
Purple is the dominant flower color.
They could have offspring with purple or white flowers.
The offspring have a 50% chance for purple flowers.
Which of the following best describes the purpose of a Punnett Square in genetics?
To determine the probability of an offspring inheriting a particular trait
To map out the family tree of an individual
To identify the genetic disorders in a family
To calculate the genetic distance between two genes
In a pedigree chart, what does a horizontal line connecting a circle and a square represent?
A sibling relationship
A marriage or mating relationship
An adoption
A genetic mutation
If a trait is autosomal recessive, what would be the expected phenotype of an individual with one dominant and one recessive allele?
The individual will express the recessive trait
The individual will express the dominant trait
The individual will express both traits equally
The individual will not express any trait
