Which of the following events occur in prophase?

Which of the following events occurs during prophase?

The correct answer is (c) synapsis and crossing over. During prophase I of meiosis, synapsis and crossing over take place.

What happen during prophase stage?

During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. … The sister chromatids are pairs of identical copies of DNA joined at a point called the centromere.

Which of these occur during prophase?

The first and longest phase of mitosis is prophase. During prophase, chromatin condenses into chromosomes, and the nuclear envelope (the membrane surrounding the nucleus) breaks down. In animal cells, the centrioles near the nucleus begin to separate and move to opposite poles of the cell.

What events occur during prophase quizlet?

Which events occur during prophase? The nuclear envelope breaks down. Chromosomes condense and are attached to spindle fibers. You just studied 30 terms!

Which of the following steps occurs during prophase in mitosis?

In prophase, the nucleolus disappears and chromosomes condense and become visible. In prometaphase, kinetochores appear at the centromeres and mitotic spindle microtubules attach to kinetochores. In metaphase, chromosomes are lined up and each sister chromatid is attached to a spindle fiber.

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Which of the following events does not during prophase?

Which of the following events does not occur during prophase of mitosis? The mitotic spindle breaks down. Which event or events occur during anaphase?

What happens during prophase answers?

During prophase, the nuclear envelope dissolves and chromosomes condense. The chromosomes migrate to the center of the cell and align during metaphase. The mitotic spindle fibers attach during metaphase and retract during anaphase, pulling sister chromatids from each chromosome to separate poles of the cell.

What is the most important thing that happens during prophase?

Why is prophase important? Prophase is the first step in mitosis. Chromatin begins to condense and is visible in the form of chromosomes. Prophase is important because this is when chromatin becomes chromosomes so the right number of chromosomes can be distributed equally to each daughter cell produced.

What the two important events that happen during prophase I?

Key Points

During prophase I, the homologous chromosomes condense and become visible as the x shape we know, pair up to form a tetrad, and exchange genetic material by crossing over.