Review for Evolution

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

• recessive
• dominant
• lower case letter
• both 

When a capital letter is used, what kind of allele is being represented?

• Recessive Allele
• Codominance
• Punnett Squares
• Dominant Allele

Deoxyribonucleic acid, a long, complex molecule that controls heredity

• inherited trait
• chromosome
• DNA
• pedigree

The hidden or "weaker" form of an inherited trait

• dominant trait
• recessive trait
• purebred
• hybrid

The form of an inherited trait that masks the other form of the same trait.

• dominant trait
• recessive trait
• purebred
• hybrid

What is genetic variation?

• The basic unit of heredity; controls a specific trait.

• A characteristic passed from parent to offspring

• The differences that occur from a mixture of genes

The offspring of sexually reproducing organisms have genes that are _____________ from that of their parents.

• different

• same

• dominant

• recessive

The offspring of asexually reproducing organisms have genes that are ____________ to that of their parent.

• different

• same

• dominant

• recessive

The two types of alleles are (select two)

• dominant

• doughnut

• expressive

• recessive