Question

7 multiple choice 2 points identify the stage of mitosis in the image below. metaphase anaphase telophase prophase 8 multiple answer 2 points which of the following is true about the event called \crossing - over\? (choose all answers that are true) crossing - over creates extra chromosomes during meiosis crossing - over occurs in prophase ii of meiosis crossing - over increases the variation in a species crossing - over creates recombinant chromosomes 9 multiple choice 2 points chromosomes are duplicated during what stage of the cell cycle? telophase mitosis cytokinesis

Explanation:

• For question 7: In metaphase of mitosis, chromosomes line up at the cell - equator. The image shows chromosomes aligned, which is characteristic of metaphase.
• For question 8: Crossing - over occurs in prophase I of meiosis, not prophase II. It does not create extra chromosomes but creates recombinant chromosomes and increases genetic variation in a species.
• For question 9: Chromosomes are duplicated during the interphase of the cell cycle, not during telophase, mitosis, or cytokinesis. But among the given options, the closest related process where some aspects of cell - division start to be set up is mitosis as the duplication is a pre - requisite for it.

Answer:

1. A. metaphase
2. C. Crossing - over increases the variation in a species, D. Crossing - over creates recombinant chromosomes
3. B. mitosis