Chromatin condenses into chromosomes, spindle fibers form, and the nuclear membrane begins to break down. So the answer that correctly describes prophase is option (A). This completes mitosis: a single parent cell is divided into two identical daughter cells. This results in the formation of two daughter nuclei, and the original cell begins to split into two. This describes what happens in telophase, which is the fourth and final stage of mitosis. So answer (C) is incorrect.įinally, answer choice (D) says that two nuclear membranes begin to reform around the chromosomes. And anaphase is the stage where the chromosomes are being pulled apart. You can remember what happens in anaphase because it starts with the letter A, just like the word apart. This describes what happens in the third phase of mitosis, anaphase. So answer choice (B) is incorrect.Īnswer choice (C) states that the spindle fibers shrink, pulling the chromosomes to opposite sides of the cell. Which of the following correctly describes the events that occur in prophase A Chromatin condenses into chromosomes, spindle fibers form, and the nuclear. is the series of events that occur in a cell that lead to duplication of that. You can remember what occurs in metaphase because it starts with the letter M, and so does the word middle, which is where the chromosomes line up in the cell. Prophase is the first phase of mitosis, the process that separates the. This describes metaphase, which is the second stage of mitosis, which you can see here. Answer choice (B) says pairs of chromosomes line up along the equator, or the middle, of the cell and spindle fibers attach to each chromosome. Let’s look through the rest of the options before we come to a conclusion. Since we are looking for the option that best describes prophase, this could be our answer. If we look at our answer choices, we can see that option (A) lists out all these events. The nuclear membrane also begins to break down during prophase. Spindle fibers are also formed in this stage, which will be used later. In prophase, the first step of mitosis, the chromatin in the nucleus of the cell begins to condense, so the chromosomes become visible. Let’s review the events that happen in each of these stages so we can answer our question. These four steps occur in the following order: prophase, metaphase, anaphase, and telophase. You might already know that mitosis is a process of cellular division and it has four distinct steps. Or (D) two nuclear membranes begin to reform around the chromosomes. (C) Spindle fibers shrink and pull each chromosome to opposite sides of the cell. (B) Pairs of chromosomes line up along the equator, middle, of the cell, and spindle fibers attach to each chromosome.
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