Module 10 (genetics) Review

This is defined as an alternative form of a single gene passed from generation to generation.

• allele
• hybrid
• trait
• chromosome

A homozygous individual could have a Bb genotype

• True
• False

Genetic disorders are contagious (they can be spread to your friends).

• Yes
• No
• Maybe

The Mendelian pattern of inheritance does not apply to all traits.

• True
• False

The offspring of the P generation are called the F2 generation.

• True
• False

A Dd genotype has two different alleles.

• True
• False

Which defines an organism that is homozygous for a trait?

• has two different alleles for a trait
• has two different genes for a trait
• has two of the same genes for a trait
• has two of the same alleles for a trait

Which statement pertains to Mendel's law of segregation?

• Allele pairs are called a genotype.
• Dominant traits are visible.
• Homozygous organisms are called hybrids.
• Two alleles for each trait separate during meiosis.

Organisms that inherit two different alleles for a gene are said to be:

• homozygous
• heterozygous
• both homozygous and heterozygous
• none of these

What is the function of a pedigree?

• A diagram that determines the genotype and phenotype of an organism.
• A diagram that traces the inheritance of a particular trait through generations.
• A diagram that explains the inheritance of traits that was used by Mendel.
• A diagram that explains the results of a test cross between two organisms.