Name: 

Gregor Mendel used pea plants to study

Offspring that result from crosses between parents with different traits

The chemical factors that determine traits are called

Gregor Mendel concluded that traits are

The principle of dominance states that

When Gregor Mendel crossed true-breeding tall plants with true-breeding short plants, all the offspring were tall because

If a pea plant has a recessive allele for green peas, it will produce

In the P generation, a tall plant was crossed with a short plant. If alleles did not segregate during gamete formation,

The principles of probability can be used to

A heterozygous tall pea plant is crossed with a short plant. The probability that an F₁ plant will be tall is

In the Punnett square shown in Figure 11–1, which of the following is true about the offspring resulting from the cross?

A Punnett square shows all of the following EXCEPT

If you made a Punnett square showing Gregor Mendel’s cross between true-breeding tall plants and true-breeding short plants, the square would show that the offspring had

What principle states that during gamete formation genes for different traits separate without influencing each other’s inheritance?

The Punnett square in Figure 11–2 shows that the gene for pea shape and the gene for pea color

How many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY?

If a pea plant that is heterozygous for round, yellow peas (RrYy) is crossed with a pea plant that is homozygous for round peas but heterozygous for yellow peas (RRYy), how many different phenotypes are their offspring expected to show?

Situations in which one allele for a gene is not completely dominant over another allele for that gene are called

A cross of a black chicken (BB) with a white chicken (WW) produces all speckled offspring (BBWW). This type of inheritance is known as

Variation in human skin color is an example of

Gregor Mendel’s principles of genetics apply to

A trait is a specific characteristic that varies from one individual to another. _________________________

Gregor Mendel concluded that the tall plants in the P generation passed the factor for tallness to the F₁ generation. _________________________

An organism with a dominant allele for a particular form of a trait will sometimes exhibit that trait. _________________________

The principles of probability can explain the numerical results of Mendel’s experiments. _________________________

The probability that a gamete produced by a pea plant heterozygous for stem height (Tt) will contain the recessive allele is 100%. _________________________

If two speckled chickens are mated, according to the principle of codominance, 25% of the offspring are expected to be speckled. _________________________

Coat color in rabbits is determined by a single gene that has multiple alleles. _________________________

Define genetics.