Exam 11: The Basic Principles of Heredity

If a couple is planning on having three children, what is the probability that only one will be male?

Mendel's paired factors unite during the formation of reproductive cells. __________________

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 physical location of a particular gene on a chromosome is called:

An organism with the genotype of AaXx can produce gametes containing __________ if the two genes are unlinked.

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

In peas, Mendel found that tall plants and yellow peas are dominant.The phenotype for a pea plant with the genotype TTyy would be:

Compare and contrast the following pairs of related terms: gene and allele, genotype and phenotype, homozygous and heterozygous.

To determine the probability that two parents who are Bb will a first child that is Bb, use the product rule. __________________

The genotype for a pea plant that is homozygous recessive for both height and pea color would be:

The probability that two genes will be separated by crossing-over is related to:

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.If a small number, say 15%, of the offspring are instead black-bodied with normal wings, this is most likely the result of:

When certain medium height hybrid plants were crossed, they produced offspring that were dwarf, medium, and tall in a ratio of 1 : 2 : 1.This is an example of:

The physical appearance of an organism for a given trait is termed:

What are the predicted phenotypes of the female children from the union of a woman who is heterozygous for hemophilia and a man who has normal blood clotting characteristics? (Use the Punnett square to verify your answer.)