Meiosis AP Bio Quiz

What are the stages of meiosis?

• Prophase I, Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase II, Anaphase II, Cytokinesis

• Interphase, Prophase I, Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase II, Anaphase II

• Prophase I, Metaphase II, Anaphase I, Telophase I, Prophase II, Metaphase I, Anaphase II, Telophase II

• Prophase I, Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase II, Anaphase II, Telophase II

Explain the difference between meiosis I and meiosis II.

• Meiosis I and meiosis II are the same process and have no differences.

• Meiosis I separates homologous chromosomes, while meiosis II separates sister chromatids.

• Meiosis I and meiosis II both separate homologous chromosomes.

• Meiosis I separates sister chromatids, while meiosis II separates homologous chromosomes.

Describe the events that occur during prophase I of meiosis.

• Homologous chromosomes pair up, crossing over occurs, nuclear envelope breaks down, and spindle fibers begin to form.

• No crossing over occurs

• Nuclear envelope forms

• Chromosomes separate into chromatids

What is the significance of crossing over in meiosis?

• Genetic recombination and increased genetic diversity

• Causes mutations

• No impact on genetic variation

• Decreased genetic diversity

How does genetic variation occur in meiosis?

• Genetic recombination and DNA replication

• Crossing over and independent assortment of chromosomes

• Asexual reproduction and mitosis

• Mutation and genetic drift

Explain the process of metaphase II in meiosis.

• Chromosomes replicate to form sister chromatids

• Chromosomes line up along the equatorial plane of the cell.

• The nuclear envelope breaks down

• Homologous chromosomes separate and move to opposite poles

How does independent assortment contribute to genetic variation in meiosis?

• It leads to different combinations of maternal and paternal chromosomes in the resulting gametes.

• It results in identical gametes being produced

• It has no impact on genetic variation

• It causes the chromosomes to replicate before cell division

What is the role of homologous chromosomes in meiosis?

• Pair up and exchange genetic material

• Separate and move to opposite poles

• Act as templates for DNA replication

• Remain unpaired throughout the process

This process involves homologous chromatids exchanging genetic material to increase genetic diversity.

• crossing over

• random fertilization

• independent assortment

• gene flow

Describe the process of nondisjunction.

• Homologous chromosomes exchange genetic information

• The alignment of the chromosomes on the metaphase plate

• Homologous chromosomes or sister chromatids remain attached during anaphase

• The process of sperm and egg fusing to create a zygote