11.3 Other Patterns of Inheritance

Fill in the Blank

Genetics is more complicated because the majority of genes have more than ____ alleles.

Multiple Choice

Many important ____ are controlled by more than one gene.

• behavior

• type

• traits

• none of the answers are correct.

Multiple Choice

A cross between red-flowered (RR) and white-flowered (WW) plants consist of what colored flowers?

• White

• Red

• Pink

• Pink and white striped

Multiple Choice

What is the GENOTYPE of a cross between a homozygous dominant red flower (RR) and a homozygous dominant white flower (WW)?

• RW

• rw

Multiple Choice

In ___ dominance , the heterozygous phenotype lies somewhere between the two homozygous phenotypes.

• incomplete

• codominance

• recessive dominance

• none of the answers are correct

Multiple Choice

Cases in which the phenotypes produced by both alleles are clearly expressed are called ____.

• incomplete dominance.

• codominance.

• recessive dominance.

• none of the answers are correct.

Multiple Choice

A single gene can have many possible alleles. This is a

• false statement.

• true statement.

Multiple Choice

A gene with more than two alleles is said to have ____ alleles.

• double

• triple

• multiple

• none of the answers are correct

Multiple Choice

Traits controlled by two or more genes are said to be ____ traits.

• multigenic

• polygenic

• plurigenic

• none of the answers are correct

Multiple Choice

Polygenic traits often show a __ range of phenotypes.

• narrow

• specific

• wide

• limited

Multiple Choice

The variety of skin color in humans is probably controlled by __ different genes.

• 2

• 3

• 4

• 5

Multiple Choice

The characteristics of any organism ____ determined solely by the genes that the organism inherits.

• are

• are not

Multiple Choice

Genes provide a plan for development, but how that plan unfolds also depends on _____.

• food the organism eats.

• the temperature during growth.

• the environment.

Multiple Choice

The phenotype of an organism is ___ determined by its genotype.

• completely

• only partly