Homologous Chromosomes Move Toward Opposite Poles of a Dividing Cell

question 34

Multiple Choice

Homologous chromosomes move toward opposite poles of a dividing cell during

• A)mitosis.
• B)meiosis I.
• C)meiosis II.
• D)fertilization.

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Definitions:

Heritability

The proportion of variation in a trait among individuals that can be attributed to genetic variations.

Monozygotic

Pertaining to twins who are genetically identical because they were formed from a single fertilized egg that split into two.

Dizygotic

Refers to twins that are developed from two separate fertilized eggs, also known as fraternal twins, resulting in siblings that are genetically similar but not identical.

Sex-linked Recessive Disorders

Genetic disorders that are carried on the sex chromosomes, typically the X chromosome, and are expressed in the phenotype only when a dominant allele is not present.