Asked by Andy Blackwell in Uncategorized
What is cetrioles?
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Asked in Genetics
Do plant cells have centrosomes?
No they do not. Animal cells have centrosomes, which are defined as a pair of cetrioles. Plants do not have centrioles, so they cannot have centrosomes. Plants have microtubule organizing centers (MTOCs). Centrosomes (in animals) and MTOCs (in plants) are where microtubules of the spindle originate during mitosis
Asked in Microbiology, Cell Biology (cytology)
Where do you find the centrioles aid in cell division?
Asked in Genetics
Are there any plant cells that do not undergo mitosis?
What is the importance of checkpoints to the cell cycle?
what do you mean by checkpoints. The cell cycle happens to create more cells for the body. It also does it so it does not get really big becasue if a cell gets really big then it won't be alble to get all the nutrients in as fast as it needs it and all the waste out. It also helps to prevent from DNA overload. The prosses or stages go in this order: 1. Interphase- - G1: it grows and synthesizes proteins and organelles. - S: Repicates and synthesizes DNA - G2: replication of organelles needed for division 2. Mitosis - Prophase: chromatin condenses into chromosomes. cetrioles separate and spindle begins to form. nuclear envelope will form. - Metaphase: chromosomes line up acroll the center of the cell. each chromosome is connected to a spindle fober at its centrome. - Anaphase: the sister chrmatids separate into indevidual chromosomes and are moved apart. - Telophase: chromosomes gather at opposite ends of the cell and lose theur distinct shapes. 2 new nuclear envelopes will form. 3. Cytokenesis - the cytoplasm pinches in half. cytoplasm splits. each daughter cell has an identical set of duplicate chromosomes. I am studing this right now but instead of typing what I know that maybe confusing I got this out of my Biology book. I hoope this helps.