Content Vocabulary (page 27)

Genotype refers to the genetic makeup of an organism that determines a trait's phenotype.

• The observable characteristics of an organism

• The genetic makeup of an organism

• The environment's influence on a trait

• The physical expression of a trait

The term 'conclude' means:

• to begin

• to end

• to interrupt

• to question

What is the difference between a homozygous genotype and a heterozygous genotype?

• A homozygous genotype has identical alleles, while a heterozygous genotype has different alleles.

• A homozygous genotype has different alleles, while a heterozygous genotype has identical alleles.

• Both genotypes have identical alleles.

• Both genotypes have different alleles.

What results from incomplete dominance in traits?

• A blending of traits

• Complete dominance of one trait

• No visible traits

• A new trait entirely

How many possible alleles can a single gene have?

• One

• Two

• Multiple

• None

A Punnett square is used for:

• predicting the outcome of genetic crosses

• measuring the speed of a moving object

• calculating the area of a square

• determining the chemical composition of a substance

An example of a trait determined by polygenic inheritance is:

• Eye color

• Blood type

• Sickle cell anemia

• Cystic fibrosis