AP BIOLOGY

Detailed explanation-1: -Telophase: spindle fibers break down, nuclear membrane forms, and chromosomes begin to uncoil and form chromatin.

Detailed explanation-2: -Understanding Stages Of Mitosis : Example Question #3 During prophase, the nuclear envelope and nucleolus are dissolved and the chromosomes condense. The centrioles and spindle fibers begin to form at opposite poles of the cell. Chromatid separation is not seen until anaphase.

Detailed explanation-3: -During prophase, the chromosomes condense, the nucleolus disappears, and the nuclear envelope breaks down.

Detailed explanation-4: -Spindle fibers function twice during meiosis. Their role again is to attach to chromosomal structures and pull them apart to opposite ends of the cell. During both meiosis’ prophases, the spindle fibers become visible and then extend from centrosomes and centrioles at opposite ends of the cell during both metaphases.

Detailed explanation-5: -Phase 1 – Prophase: In this phase the nuclear membrane begins to break down and the DNA forms structures called chromosomes. The four stages of mitosis (the cell at the top has not started mitosis) lead to two daughter cells. A little after telophase, the cytoplasm splits and a new cell membrane forms.