Which events occur during prophase
So how does one cell become two cells? Cytokinesis is responsible for completing the process of cell division by taking those new nuclei, separating the old cell in half, and ensuring that each of the new daughter cells contains one of the new nuclei.
During cytokinesis, a contractile ring made of protein filaments develops where that metaphase plate used to be. You can think of it like a belt that just keeps tightening around the middle of the cell, squeezing it into two sections. Eventually, the contractile ring shrinks so much that the plasma membrane pinches off and the separated nuclei are able to form into their own cells.
The end of cytokinesis signifies the end of the M-phase of the cell cycle, of which mitosis is also a part.
At the end of cytokinesis, the division part of the cell cycle has officially ended. Mitosis is a complex process, and the mitosis phases involve a lot of big words and unfamiliar concepts that you might want to learn more about. Reading all about mitosis can definitely be helpful, but what if visuals really help you understand how things work? Watching mitosis in action through web animations can help give you an idea of what all those verbal descriptions really mean.
They can also help you picture what the phases of mitosis might look like under a real microscope! There are probably a lot of web animations of mitosis that you could take a look at, but we recommend these three:.
More importantly, it explains mitosis in terms of familiar, everyday biological processes , like when you get a cut and need your body to make new cells to heal. If you need help thinking about the real-world relevance of the mitosis phases beyond just being something you have to memorize for a lab or exam, this is a great resource.
A tried-and-true approach to learning the mitosis phases, vetted by biology teachers, is creating a mitosis flip book. You can flip through your mitosis flip book from beginning to end and watch the progression of mitosis through the four phases. Activities like this one can help imprint on your memory what each step of mitosis looks like. The flashcard set provides traditional question-and-answer flashcards, a flashcard function specifically geared toward memorization, a multiple choice quiz, and matching.
If you want to practice being tested on the steps of mitosis before the actual test, check out this resource! ProProfs Flashcards provides several study sets on other topics related to or involving mitosis, so if you need to test your knowledge of mitosis beyond just the four phases, this resource could help out there as well.
What's the difference between mitosis and meiosis? Learn more with our side-by-side comparison. Need to review the different parts of the cell and what they do? We walk you through the functions of the cell membrane , endoplasmic reticulum , and vacuoles.
If you learn better by looking at the big picture, you'll also want to keep our complete guide to animal cells handy so you can refer back to it while reading about each individual cell structure.
If you want more traditional resources to help you learn about the cell cycle, our list of the best AP Biology books for studying has you covered. Taking science classes in high school and doing well in them! Check out this article about which science classes you need to take before applying for college to figure out which classes are right for you. As a content writer for PrepScholar, Ashley is passionate about giving college-bound students the in-depth information they need to get into the school of their dreams.
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How to Get a Perfect 4. How to Write an Amazing College Essay. A Comprehensive Guide. Choose Your Test. The main value of prophase is that the chromatin condenses to become chromosomes, which will later be separated in various ways during the final stages of mitosis and meiosis.
The nucleolus in the nucleus also disappears and the cell membrane disappears, which makes it easy for the cell to start to divide into two. The miotic spindles on both sides of the cell, which is made of microtubules, is formed during prophase and gets ready to move.
This is an important part of the division, as it pulls the chromosomes apart to their respective side. It consists of microtubules and associated proteins and forms a real spindle between the opposite poles of a cell. It ensures a good distribution of chromosomes in the cells during division. It is therefore essential for a good cellular development. Previous Next.
SAT , All of the following events occur during prophase in mitosis except. Answers: 3. Answer from: mv The correct option among all the options given in the question is option "A". The correct option among all the options that are given in the question is the third option or option "C". Answer from: allstar I will be happy to answer this but the part of the question is missing where are the answer choices Explanation:.
Answer from: pr I would say C. Explanation: In both Meiosis and Meiosis the first phase Also known as Prophase the chromosomes become compact and answer C. Answer from: harleeGirl. Answer from: maddiecrouch Answer from: avery Answer from: krystenlitten.
Answer from: Fashiondiva The right answer is The spindle fibers form.
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