What term describes the physical traits of a person?

The different forms of a gene are called

Tommy has genotype Nn. His genotype would best be described as:

Sue has genotype nn. His genotype would best be described as:

Assume in cats that long hair is dominant over short hair.  One cat carries heterozygous, long-haired traits , and its mate carries homozygous short-haired traits . What is the probability of one of their offspring having long hair?

In pea plants, the trait for tall stems is dominant over the trait for short stems. If two heterozygous tall plants are crossed, what percentage of the offspring would be expected to have the same phenotype as the parents?

Organisms that have two identical alleles for a particular trait are said to be

During one of Mendel's experiments, when the Generation II plants were cross-pollinated among themselves, the percentage of short-stemmed pea plants in Generation III was likely to be _____ if tall stem is dominant over short stem.

A human with the genotype XX is

A human with the genotype XY is

What does the notation Tt mean to geneticists?

How does a geneticist use pedigrees?

In humans, normal color vision is dominant over color blindness. A color blind male marries a female who is a carrier for color blindness. What is the probability that  these parents will have a child who is colorblind? (You may wish to use scratch paper.)

In rabbits, the allele for long hair (h) is recessive to the allele for short hair (H). When a short-haired female was mated with a long-haired male, the offspring consisted of six short-haired and five long-haired rabbits. The genotypes of the parent rabbits must be:

Hitchhiker's thumb (H) is dominant to no hitchhiker's thumb (h). A woman who does not have hitchhiker's thumb marries a man who is heterozygous for hitchhiker's thumb. What is the probable genotypic ratio of their children?

In humans, normal color vision is dominant over color blindness. A color blind male marries a female who is a carrier for color blindness. What is the probability that they will have a color blind son? (Remember color-blindness is a sex linked trait.)

Which of the following would be a positive use of biotechnology for society?

Hemophilia is a sex-linked, recessive trait. Which of the following describes the probability of hemophilia in the offspring of a man who does not have hemophilia and a woman who does not have hemophilia, but whose father is a hemophiliac?

Maria is homozygous recessive for the trait. Isaiah is heterozygous dominant for the trait. What would be the possible gametes for these parents?

Babies were born during a power outage at the hospital.  During the commotion they got mixed up.  Luckily each baby has a different blood type  A, B, AB & O.   Which baby is correctly paired with his/her parents?

 Roan is a codominant trait in cattle.  A farmer has a roan bull.  He breeds the roan bull to a roan cow.  What will be the phenotype possibilities for the offspring?

Using this pedigree, what will the genotype for #D 3 be?

If two white sheep produce a black offspring, the parent’s genotypes for color must be

What is Ricky's blood type?

Which Punnett square shows the cross between two parents in which one parent is heterozygous dominant and the other parent is homozygous recessive?

How is the trait in this pedigree inherited?

When reading pedigrees, which is correct?

While genetic engineering has positive benefits, there are also concerns associated with widespread use of genetic engineering in agriculture. If many farmers begin to plant more genetically modified crops that have an increased tolerance to insects, which of the following may result over time?

Which technology below would probably be the most important to a person who had diabetes and had to take the hormone insulin every day?

The diagram represents the process used in 1996 to clone the first mammal, a sheep named Dolly. Which of the following statements concerning Dolly is correct?

In the United States, there has been relatively little experimentation involving the insertion of genes from other species into human DNA. One reason for the lack of these experiments is that

The diagram represents a common laboratory technique in molecular genetics. One common use of this technology is the

Which of the following would be correct for this Punnett square?

Which of the following would be correct for this Punnett square?

Which of the following would show symbols for a trait when using a Punnett square?