Exam 12: Patterns of Inheritance

Let P = purple flowers and p = white, and T = tall plants and t = dwarf.Of the 16 possible gamete combinations in the dihybrid cross between 2 double heterozygotes, how many would produce the phenotype white, tall?

A diploid individual carrying two identical alleles at a given gene locus is called

Let R = red pigment and r = no pigment.In carnations, RR offspring make a lot of red pigment, rr offspring make no pigment and Rr offspring make a small amount of red pigment, thus appearing pink.Pink carnations are therefore an example of

The allelic make up of a cell or individual is referred to as its

In modern terminology, Mendel's heredity "factors" are called

Individuals that have 2 alleles for most gene loci are best described as

A diploid individual carrying two different alleles at a given gene locus is called

An allele for a particular trait that is only expressed in the presence of a second copy of the same allele is called

Mendel used the ______ to determine whether an individual with the dominant phenotype was homozygous or heterozygous for that trait.

Achondroplasia is a common form of dwarfism caused by an autosomal dominant mutation in the fibroblast growth factor receptor 3 (FGFR3) gene.Two copies of the mutant gene are invariably fatal before or shortly after birth.If a person with achondroplasia marries a person of normal height, what is the probability that both their first child and second child will have achondroplasia?

Mendel used the garden ___ plant for his studies on inheritance.

If a single gene has 3 or more alternative forms, this is called