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) |
Genotype | arrow_right_alt | An allele that is represented by an lowercase letter (small Letter) |
Recessive Allele | arrow_right_alt | The physical trait a person shows. Example: red hair |
Dominant 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 -
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?
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 Asia. 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?
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 wolves, black is dominant to white.
What are the expected genotypes of the offspring if a homozygous black wolf mates with a white wolf?
In guinea pigs, straight hair (H) is dominant to wavy hair (h).
When a heterozygous guinea pig is crossed with a homozygous dominant guinea pig, what percentage of the offspring are expected to be homozygous for straight hair?
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.
Sickle cell is an inherited condition that affects the proper formation of blood cells in humans. The allele for sickle cell (n) is recessive to normal blood cells (N).
If a person who is heterozygous has children with someone who has sickle cell, what percentage of their children will have the disorder?
The inheritance pattern for an autosomal recessive trait is shown in the pedigree. Shaded symbols represent individuals that express the recessive (small) trait.
What is the genotype of individuals I-1 and I-2?
In humans, having hairy knuckles is dominant to having hairless knuckles. Shaded individuals in the pedigree below have hairless knuckles.

If individuals II-3 and II-4 have another child, what is the probability the child is born with hairy knuckles?
Which of the following represents the parents?
In pigs coat color is determined by codominance. Possible phenotypes and genotypes of coat colors are shown below.
Which table shows the expected phenotypes of offspring resulting from a cross between a brown-white pig and another brown-white pig?
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?
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?
What are the blood types of the possible children that a man with type AB could produce with a woman who is type AB?
Select all that apply
A mom with type A blood and a dad with type B blood receive a baby with type O blood. The father claims this cannot be his child.
Based on your knowledge of multiple alleles and blood types, did the parents receive the correct baby? Support your answer with evidence from a Punnett Square.
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?
Two people who are carriers of Huntington's disease marry and have children.
What would the genotypes of these parents be?
A genetic cross involving two unlinked genes is represented.
GgSS x ggSs
Which genotype is NOT possible in the offspring produced by the cross?
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?
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.
Tentacle texture and fin shape are inherited traits in squid. Barbed tentacles (B) are dominant over smooth tentacles (b) and flat fins (F) are dominant over curved fins (f). The alleles for smooth tentacles and curved fins are recessive.
If a male who is homozygous for barbed tentacles and heterozygous for flat fins mates with a female who has smooth tentacles and curved fins, what is the probability of having offspring that are heterozygous for both traits?
In sea turtles, a ridged shell (R) is dominant over a smooth shell (r), and green colored skin (G) is dominant over brown colored skin (g).
What is the expected phenotypic ratio of the offspring of an RrGg x RrGg cross?
When a heterozygous dimpled man mates with a heterozygous dimpled woman, what is the expected outcome of their children?
Two people who are carriers of Huntington's disease marry and have children.
What percent of their embryos are expected to survive?