Question

which phase of mitosis is characterized by the separation of sister chromatids? a. telophase b. anaphase c. prophase d. metaphase what structure holds sister chromatids together during mitosis? a. centrosome b. centromere c. spindle fibers d. nuclear envelope

Explanation:

• For the first question:
• In mitosis, anaphase is the stage where sister chromatids separate. In telophase, the nuclear envelope reforms. In prophase, chromosomes condense. In metaphase, chromosomes align at the equator.
• For the second question:
• The centromere is the structure that holds sister chromatids together. The centrosome organizes spindle fibers. Spindle fibers help in chromosome movement. The nuclear envelope encloses the nucleus.

Answer:

1. B. Anaphase
2. B. Centromere