Autosomal Traits
X Linked Traits
Wild Card
Review
Pedigree Charts
100
True or False: Most genetic disorders are dominant (AA) traits.
False- Most genetic disorders are recessive (aa) often inherited from carrier parents (Aa).
100
Sex linked traits are commonly found on which chromosome?
The X chromosome
100
What is a pedigree chart?
A pedigree chart is a diagram showing genetic relationships between family members.
100
What is a trait?
An inherited characteristic
100
What represents a marriage between a male and female? Draw it on the board.
A horizontal line represents a marriage between a male and female.
200
What chromosomes carry autosomal disorders?
Autosomal disorders are carried on chromosomes 1-22.
200
True or False- X linked traits are commonly expressed in males.
True- Males only have one x chromosome and only need one affected chromosome to express the trait.
200
What is the genotype of a parent who is a carrier but does not express a trait?
The genotype is heterozygous (Aa)
200
Who was the father of genetics?
Gregor Mendel is the father of genetics.
200
What represents a connection between parents and their children? Draw it on the board!
A connection from parents to their children is represented by a vertical line and bracket.
300
What genotype would someone with an autosomal dominant disorder carry?
Someone with an autosomal dominant disorder would carry a heterozygous genotype (Aa).
300
According to the below pedigree chart, which parent is the carrier of the trait? 
The mother is carrier of the trait
300
What is a dominant trait- attached or unattached earlobes?
Unattached or free earlobes are a dominant trait.
300
Which of Mendel's Laws allow us to cross two traits at one time?
The Law of Independent Assortment
300
Draw the representation of a female that does not express or carry a trait.
400
What type of autosomal trait can be seen in the below pedigree?
This pedigree shows an autosomal recessive trait.
400
According to the below pedigree chart, colorblindness is what kind of x-linked trait?
Colorblindness is an x-linked recessive trait.
400
Most genetic disorders are what?
Most genetic disorders are autosomal recessive disorders?
400
A dominant phenotype can result from what two genotypes?
A homozygous dominant (AA) or a heterozygous (Aa)
400
Draw a representation of a male that carries but does not express a trait.
500
What autosomal dominant disorder typically onsets between the ages of 30-50?
Huntington's disease
500
Using the punnett square below, what percent of the off-spring will express the recessive trait?
50% of the offspring will express the trait.
500
What is achondroplasia?
Achondroplasia is a genetic disorder that results in dwarfism.
500
What are our last names?
Parsons and Blaisdell
500
What can you conclude about the parents in the below pedigree chart?
We can conclude that they are both carriers with a heterozygous genotype (Aa)