Unit 3 Test Review

In which phase does crossing-over happen?

• Prophase I

• Prophase II

• Metaphase I

• Anaphase II

This image shows chromosomes during Prophase 1. Which of the following correctly describes the process shown?

• segregation of sister chromatids
• condensation and segregation of alleles
• mutationin which the DNA content of the gene is altered
• crossing - over in which alleles are exchanged

 Cell created at the end of meiosis are best known as

• somatic cells
• gamete cells
• skin cells
• diploid cells

Unlike mitosis, meiosis results in the formation of

• Two genetically identical cells.

• Four genetically different cells.

• Four genetically identical cells

• Two genetically different cells

_________________ creates genetic diversity in gametes.

• Crossing over

• Prophase

• Mitosis

• Interphase

95% of the cells life cycle

Stage where DNA is copied

• Interphase

• Metaphase

• Telophase

• Prophase

Chromosomes line up at the equator of the cell

Spindle fibers extend from the centrioles to the middle of the chromosomes

• Prophase

• Metaphase

• Anaphase

• Interphase

Chromatids separate

• Anaphase

• Metaphase

• Prophase

• Telophase

Nuclear membrane reforms around the new daughter cells.

Cytoplasm begins to "pinch" in.

• Anaphase

• Metaphase

• Telophase

• Interphase

Two replicated cells split from each other and are able to move on their own.

• Metaphase

• Prophase

• Cytokinesis

• Telophase