Chapter 2

• Which of the following is a key difference between mitosis and meiosis?

• • Mitosis produces four cells, meiosis produces two.

• • Mitosis produces genetically identical cells, meiosis produces genetically diverse cells.

• • Mitosis occurs in gametes, meiosis occurs in somatic cells.

• • Mitosis includes crossing over, meiosis does not.

In which phase of meiosis does crossing over occur?

• • Prophase I

• • Metaphase I

• • Anaphase I

• • Telophase I

What is the end result of meiosis in terms of chromosome number?

• • Diploid cells

• • Haploid cells

• • Tetraploid cells

• • Triploid cells

Which structure forms during prophase of mitosis to help organize the chromosomes?

• • Spindle fibers

• • Centromere

• Metaphasic Plate

• Telomere

Which phase of meiosis is characterized by the separation of homologous chromosomes?

• • Prophase I

• • Metaphase I

• • Anaphase I

• • Telophase I

During which phase of mitosis do the sister chromatids separate?

• • Telophase

• • Prophase

• • Metaphase

• • Anaphase

Which structure is responsible for pulling the chromosomes apart during mitosis?

• • Centrioles

• • Spindle fibers

• • Nucleolus

• • Chromatids

Which is the correct order of stages in the cell cycle?

• G1, S, prophase, metaphase, anaphase

• S, G1, prophase, metaphase, anaphase

• Prophase, S, G1, metaphase, anaphase

• S, G1, anaphase, prophase, metaphase

Which of the following events takes place in meiosis II but not in meiosis I ?

• Crossing over

• Contraction of chromosomes

• Separation of homologous chromosomes

• Separation of chromatids