Match the vocabulary terms with their definition.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Phenotype | arrow_right_alt | An allele that is represented by an uppercase letter (Big Letter) |
Dominant Allele | arrow_right_alt | An allele that is represented by an lowercase letter (small Letter) |
Genotype | arrow_right_alt | The physical trait a person shows. Example: red hair |
Recessive Allele | arrow_right_alt | The two alleles (letters) combination for a given trait Example: BB, Bb, or bb |
In cats, yellow eyes are dominant to green eyes.

Dominant allele =
Dominant trait -
recessive allele =
recessive trait -
In cats, yellow eyes are dominant to green eyes.

A cat is homozygous dominant for this trait.
genotype -
phenotype -
Some cow colors are determined by codominance. Possible genotypes and phenotypes of the cows are shown below.
Which table shows the expected phenotypes of offspring resulting from a cross between a white cow and a brown cow?
In orangutans coat color is determined by codominance. Possible phenotypes and genotypes of coat colors are shown below.
What would the outcome for coat color be in orangutans when we cross a brown orangutans with a brown-orange orangutans?
In the cross below, what are the genotypes of the parents?
In students, funny is dominant to not funny. Jose is homozygous for funny and Valeria is heterozygous. If Jose and Valeria had kids, what percent of their offspring would NOT be funny?
In dogs, having furnishings (F) is dominant to not having furnishing (f). Jose's dog has no furnishings (ff).
The appearance of a recessive trait (no furnishings) in an animal’s offspring most likely means that…
In cats the allele for a black coat color (B) is dominant over the allele for a white coat color (b).
If a homozygous dominant black cat is crossed with a heterozygous black cat, which of the following genotypic ratios can be expected?
In Fruit Flies having a tan body (B) is dominant over having an ebony body (b) and having Red eyes (E) is dominant over having brown eyes (e). Below are the 4 phenotypes that could result from combining B,b,E, and e
Below is a cross between two fruit flies that are heterozygous for BOTH traits
Question: Match the number of fruit flies out of 16 that will have each of the phenotypes below.
Most Asians naturally have thick, straight hair due to a genetic variation in the EDAR gene which is associated with hair follicle development in East Asian. Curly hair is present in individuals that are homozygous recessive for that trait.
If hair texture is determined by a single gene, what is the expected genotypic outcome of crossing TWO individual who are heterozygous for straight hair?
A genetic cross involving two unlinked genes is represented.
GgSS x ggSs
Which genotype is NOT possible in the offspring produced by the cross?
A model of the color patterns in rabbits is shown below.

Which Punnett square will produce a 50% spotted and a 50% white coat rabbits?
Cystic fibrosis is considered an "autosomal recessive" genetic disorder (c), meaning that a person must inherit two recessive alleles of a mutated gene (one from each parent) to develop the disease. Not having this condition is dominant (C) to having Cystic Fibrosis (c).
Which circle graph shows the genotype probability when a female with individual with Cystic Fibrosis mates with a male that is homozygous dominant?
In a rare species of tree frog, green skin is dominant to blue skin and long tongues are dominant to short tongues. A homozygous green-skinned tree frog that is heterozygous for having a long tongue is crossed with a blue-skinned tree frog that has a short tongue.
What is the probability of having offspring that are heterozygous for both traits?
In wolves, black is dominant to white.
What are the expected genotypes of the offspring if a homozygous black wolf mates with a white wolf?
A specific type of retrievers can have a black coat color, a white coat color, or a grey coat color. The allele for a black retriever has a genotype of CB is incompletely dominant over the allele for a white retriever with a genotype of CW. So heterozygous retrievers have gray coat color.
Which cross below has the highest probability of producing a gray coat color offspring?
In tigers, whiskers length can either be short or long. The allele for long whiskers (L) is dominant to short whiskers (l).
If a female tiger that has short whiskers mates with a male tiger that is homozygous dominant, what percent of their offspring will likely have long whiskers?
Enter your answer in the box. Your answer must be a whole number.
A man with the blood type AB falls in love and mates with a woman whose blood type O.
Complete the following Punnet Square with the given information.

IAIB
IAi
IAIA
IA
IBi
IBIB
IB
The inheritance pattern for an autosomal recessive trait is shown in the pedigree. Shaded symbols represent individuals that express the recessive (small) trait.
Identify the genotypes for individuals 1 and 2 in the first generation.
In giraffes, long necks (L) are dominant to short necks (l) and spots (S) are dominant to no spots (s). A heterozygous long neck giraffe without spots mates with a short neck giraffe who is heterozygous for having spots.
What would the genotype of an offspring with short necks and no spots?
Duchenne muscular dystrophy is a sex-linked trait found only on the X chromosome. Not having this disease is dominant (N) to having this disease (n). A mother who is a carrier for this disease mates with a father that is not affected.
The couple have a daughter. What are the chances she is a carrier for the disorder?
Fragile X syndrome is a sex-linked recessive trait. Angela is worried that she might have the disease and goes to a genetic counselor to find out.
The counselor tells Angela the following information:
Her mom has the disease
Her dad does not have the disease
The disease is associated with the X chromosome
Based on the information from the counselor, what is the percent probability that Angela is a carrier for the disease?
Which of the following represents the parents?
In a cocker spaniels, curly hair (C) is dominant to straight hair (c) and a solid coat (S) is dominant to a spotted coat (s). A breeder crosses a dog which is heterozygous for both traits with another dog that is heterozygous for both traits. What is the phenotypic ratio of the cross between these two parent?
In wasps, stinger shape is controlled by two different alleles. The allele for a pointed stinger is (P) and the allele for round stinger is (p).
When two heterozygous wasps are crossed, what percentage of their offspring is expected to be homozygous for round stinger?
When a heterozygous dimpled man mates with a heterozygous dimpled woman, what is the expected outcome of their children?