Within classical genetics, a heterozygous genotype will display the___________ allele.

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

T = tall an t = short
What is the phenotype for a hybrid plant?

How many alleles does each person carry for a trait?

How many alleles does a child get from each parent for a trait?

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

Environmental factors affect only the ____________ of an individual.

Physical appearance of an organism, regardless of its genes.

What type of inheritance do two alleles have if their traits blend together? Example: A red flower crossed with a white flower will make a pink flower.

In some carnations, flower color exhibits codominance. When crosses, Red (R) and white (W) flowers make speckled flowers (RW) that show both colors.
Complete a cross between 2 speckled flowers and find the genotype proportions.

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X ^R X ^r ?

In fruit flies, eye color is a sex linked trait. Red (R) is dominant to white (r). What is the sex and eye color of flies with the following genotype: X ^R Y ?

H= normal blood clotting

h=hemophilia

X^HX^h x X^HY

What is the probability that any of their offspring will have hemophilia?

If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be? (Click on the image to make it larger.)

If this pedigree shows a recessive disorder, what MUST the genotype of individual 4 be? (Click on the image to make it larger.)

How many generations are shown in this pedigree? (Click on the image to make it larger.)

How many kids did the mother and father from the first generation have? (Click on the image to make it larger.)

This pedigree represents the inheritance of hemophilia in this family. How many of the females have the hemophilia trait? (Click on the image to make it larger.)

What is the study of heredity?

A genotype is

Colorblindness is more common in males because it is controlled by

This is an autosomal recessive disorder. The parents in generation one must _____. (Click on the image to make it larger.)

A chart that tracks a disorder in a family is called a

Flamingos are naturally white in color. Their pink color is determined based on their diets. What below determines the color of flamingos?

If cattle can be white, brown or roan (brown and white spotted) the genotype C^BC^W will show a/an _____ phenotype.

Which best describes epistasis?

This is when multiple genes code for a single trait

Labrador retriever's fur color is an example of epistasis. In this case the E gene controls the expression of the B gene. If a puppy was born with the genotype eeBB its fur color would be ________ and if it was born with the genotype EEbb it would be __________

Use the image to determine the blood type.

In human blood typing the possible alleles are A, B and i. When there are more than 2 possible alleles the trait is referred to as

In Labradors, black coats are dominant to brown coats, but a recessive epistatic gene will turn off coat color. Which genotype(s) below will show a yellow phenotype.

R = round seeds, r  = wrinkled seeds Y = yellow seeds, y = green seeds

Cross the two plants below.
(RrYy x rrYy)

What percent will have Round and Yellow seeds? 

What process does this show?

Which chromosomes do crossing over?

Which 2 processes create unique gametes?

Which genes will have the greatest chance of being separated during crossing over?

Two genes on a given chromosome that are most likely to be inherited together are

According to _______, genes that are closer together on a chromosome, have a higher chance of being inherited together.