Exam 11: The Basic Principles of Heredity

The offspring of two heterozygous gray-bodied, normal-winged flies should be 50% gray-bodied/normal wings (BbRr) and 50% black-bodied/vestigial wings (bbrr) because these alleles are linked. Suppose a small number, say 15%, of the offspring are instead black-bodied with normal wings. This is most likely the result of

When true breeding red tulips are crossed with true breeding white tulips, the progeny have pink flowers. This is an example of

Which of the following represents the possible genotype(s) resulting from a cross between one homozygous (BB) individual and one heterozygous (Bb) individual?

Briefly explain why color blindness affects men more than women and its mechanism of inheritance.

What are the possible genotypes of a female child from the union of a woman who is heterozygous for hemophilia and a man who has normal blood clotting characteristics?

The presence of two X chromosomes supports the existence of a genetic locus.

Scientists use the term ____________ to refer to the genetic makeup for that organism.

The product rule is used to determine the probability that two parents with a Bb genotype will have a child who also has the Bb genotype. ​

Compare the following pairs of related terms: codominance and incomplete dominance; epistasis and polygenic inheritance.

Suppose that the allele for brown eyes (B) is dominant to the allele for blue eyes (b). If both parents have brown eyes and are heterozygous (Bb), what are the chances that their first child will have blue eyes? Brown eyes? What are the chances that if they have two children, both will have blue eyes?

The color of certain genetically identical hydrangea flowers ranges from blue to purple to pink, depending on the level of aluminum in the soil. In which of the following types of soil is aluminum less soluble, and the flowers pink?

What are the possible phenotypes of the children if the mother has Type O blood and the father has type AB blood? (Use the Punnett square to verify your answer.)

In rabbits, coat color is governed by four alleles: C for dark gray, C^ch for chinchilla, C^h for Himalayan, and c for white. This is an example of

Color blindness is more common in males than in females because

Dominant traits remove recessive traits when both are present in the same individual.

A mating between individuals with different alleles at two loci is known as?

The cells of female mammals, including humans, contain two __________.

In Mendel's Experiment Results for Seven Characters, what was the dominant trait for pod color of the peas?

A male is neither homozygous nor heterozygous for his X-linked alleles; instead, he is always hemizygous.

Dosage compensation is defined as the genetic phenomenon that allows females, who carry two copies of an X-linked gene, to have a phenotype that is equivalent to that of males, who only have one copy of the X-linked gene.