Exam 11: Observing Patterns in Inherited Traits

In radishes, red and white are the pure-breeding colors, and long and round are the pure-breeding shapes, while the hybrids are purple and oval.The cross of a purple oval with a purple oval

If short hair (L) is dominant to long hair (l), then what fraction of the offspring produced by a cross of Ll x ll will be homozygous dominant?

Which of the following statements is false?

During Mendel's lifetime, most people believed that

In a cross involving plants with round/wrinkled seeds, yellow/green pods, and tall/dwarf stems, the researcher is actually observing __________traits.

Which of the following would be an exception to the theory of independent assortment?

The theory of segregation

An incompletely dominant gene controls the color of chickens so that BB produces black, Bb produces a slate-gray color called blue, and bb produces splashed white.A second gene controls comb shape, with the dominant gene R producing a rose comb and r producing a single comb.If a pure-breeding, black chicken with a rose comb is mated to a splashed-white chicken with a single comb in the F₂ generation, what fraction of the offspring will be blue with rose comb?

In cocker spaniels, black coat color (B) is dominant over red (b), and solid color (S) is dominant over spotted (s).If a red, spotted male is crossed with a black, solid female and all the offspring from several crosses expressed only the dominant traits, the genotype of the female will be

In radishes, red and white are the pure-breeding colors, and long and round are the pure-breeding shapes, while the hybrids are purple and oval.The cross of a red, long radish and a white, round radish will produce an F₁ generation of what phenotype?

In radishes, red and white are the pure-breeding colors, and long and round are the pure-breeding shapes, while the hybrids are purple and oval.The cross of a white oval and a purple oval will produce more

Pleiotropic genes

If a child belonged to blood type O, he or she could NOT have been produced by which set of parents?

If tall (D) is dominant to dwarf (d), and two homozygous varieties DD and dd are crossed, then what kind of progeny will be produced?

In the second generation of a cross of DD RR with dd rr, the most common genotype will be

If alleles L, M, and N are on the maternal chromosome and l, m, and n are on the paternal chromosome, the only way that a gamete from a heterozygote will produce a gamete with alleles l, m, and N is through

Who proposed the law of independent assortment?

Diploid organisms

Unexpected phenotypes can be the result of

The theory of segregation applies most specifically to events occurring in preparation of