Meiosis Quiz

Explain the difference between meiosis I and meiosis II.

• Meiosis I involves the separation of sister chromatids, while meiosis II involves the separation of homologous chromosomes.

• Meiosis I involves the separation of homologous chromosomes, while meiosis II involves the separation of sister chromatids.

• Meiosis I occurs in somatic cells, while meiosis II occurs in reproductive cells.

• Meiosis I involves the formation of gametes, while meiosis II involves the formation of zygotes.

What is crossing over and when does it occur during meiosis?

• No exchange of genetic material during anaphase II

• Exchange of genetic material between homologous chromosomes during prophase I

• Exchange of genetic material between sister chromatids during prophase II

• Exchange of genetic material between non-homologous chromosomes during metaphase I

Describe the significance of crossing over in meiosis.

• It promotes genetic diversity by exchanging genetic material between homologous chromosomes.

• It causes mutations in the genetic material of homologous chromosomes.

• It has no significance in meiosis and does not affect genetic diversity.

• It reduces genetic diversity by preventing the exchange of genetic material between homologous chromosomes.

What are the key events that occur during meiosis II?

• Fusion of homologous chromosomes

• Crossing over between non-sister chromatids

• Separation of sister chromatids

• Formation of tetrads

Describe the significance of meiosis in genetic variation and evolution.

• Meiosis creates identical offspring, reducing genetic variation.

• Meiosis has no impact on genetic variation or evolution.

• Meiosis only occurs in asexual reproduction, not contributing to evolution.

• Meiosis creates genetic variation through crossing over and independent assortment, contributing to evolution.

What is the role of the spindle fibers during meiosis?

• They help in the replication of DNA.

• They assist in the division of the cytoplasm.

• They help in the movement of chromosomes during cell division.

• They have no significant role in meiosis.

What is the significance of independent assortment during meiosis?

• It ensures that each gamete receives an exact copy of each chromosome.

• It contributes to genetic variation by randomly distributing maternal and paternal chromosomes to each gamete.

• It prevents the exchange of genetic material between homologous chromosomes.

• It has no significance in meiosis and does not affect genetic diversity.

Chromosome pairs that have the same types of genes, one from the mother and one from the father

• Chromatin

• Karyotype

• Chromatid

• Homologous Chromosomes

Which phase is shown here?

• Telophase II

• Anaphase II

• Metaphase I

• Interphase I

Which phase is shown here?

• Anaphase I

• Prophase I

• Metaphase II

• Metaphase I