Why are root tips good for studying the cell cycle? tell me faster if yoy can pls.?
396721
Because root tips are always growing and so you can find cells in various stages of the cycle in the root tips. So when you stain your slide you will find cells from every cell cycle stage in a single slide. Hope this helps!!
762050
Wikipedia's entry is very good on the phases of mitosis:\nhttp://jove.geol.niu.edu/faculty/stoddard/JAVA/luminaries.html
821109
Plant cells do not use centrioles in mitosis, many don't even use centrosomes! Despite this lack of centrosomes and centrioles, these plant cells are still able to bundle and organize their microtubules into a spindle. How plant cells are able to do all this is not clear, but this is also what is seen in meiotic divisions in animal cells, such as in the early divisions in mouse embryonic cells.
698789
it is NOT in mitosis!!!!\nmitosis happens AFTER G2\ncytokinesis is on of the final stages of mitosis!\n\neverything else is right :)
339071
Mitosis, also called karyokinesis, is division of the nucleus and its chromosomes.  It is followed by division of the cytoplasm known as cytokinesis.  Both mitosis and cytokinesis are parts of the life of a cell called the Cell Cycle.  Most of the life of a cell is spent in a non-dividing phase called Interphase.  Interphase includes G1 stage in which the newly divided cells grow in size, S stage in which the number of chromosomes is doubled and appear as chromatin, and G2 stage where the cell makes the enzymes & other cellular materials needed for mitosis.\n\nMitosis has 4 major stages --- Prophase, Metaphase, Anaphase, and Telophase. When a living organism needs new cells to repair damage, grow, or just maintain its condition, cells undergo mitosis.\n\nDuring Prophase, the DNA and proteins start to condense. The two centrioles move toward the opposite end of the cell in animals or microtubules are assembled in plants to form a spindle. The nuclear envelope and nucleolus also start to break up.\n\n\nProphase\n\nDuring Metaphase, the spindle apparatus attaches to sister chromatids of each chromosome. All the chromosomes are line up at the equator of the spindle. They are now in their most tightly condensed form.\n\n\nMetaphase\n\nDuring Anaphase, the spindle fibers attached to the two sister chromatids of each chromosome contract and separate chromosomes which move to opposite poles of the cell.\n\n\nAnaphase\nIn Telophase, as the 2 new cells pinch in half (animal cells) or a cell plate forms (plant cells), the chromosomes become less condensed again and reappear as chromatin. New membrane forms nuclear envelopes and the nucleolus is reformed.
179447
If I only had a nickel for every time this question has been asked. It's the same old tired question about mouse cleavage cells. In early development mice don't have cleavage.
104817
http://www.cellsalive.com/cell_cycle.htm\n\nThis is a neat interactive website! Check it out and let me know how it works for you!
1122859
I’m not sure if mitosis inhibiting ‘compound’ is the right approach, as it will prevent the good cells from dividing as well. On the other hand developing the viruses that attack malignant cell may be a more effective way.
609782
root, stem, leaf and flower
911550
Because, these cells do not have the microtubule apparatus to do so. The erect a cell wall, instead. Plant cells do not have centrioles.
956778
(getting out my lab report from last year) Ahem, An abstract tells about the purpose of the experiment and a shortened version of the procedure and results.\n\nFor example:\n\nThe purpose of this experiment was to find out which morning glory would grow best under the influence of different sodas (coca-cola, dr.pepper, orange soda, cream soda) in 30 days. I started out with 2 inch high morning glories.\n\nI gave each plant 25 milliliters of the specified soda each day. I measured the plant's growth in centimeters. This determined the growth rate of each plant.\n\nMy hypothesis was that cream soda would help the morning glories grow best.My data shows that my hypothesis should be rejected. Orange soda made the morning glories grow best.\n\nOrange Soda made the plant grow 12 centimeters, which was a larger amount than than the growth rate of the other sodas plants. I found that Cream Soda did the worst, only having a growth of 4 centimeters.\n------------------------------------------------------------------------------------\nThis is not real data, nor is the information even remotely correct.\nMind you, I got an A+ on my research report and I hope you do too. Remember, this is just an example of an abstract, and the data I put in IS NOT correct. Check with your teacher before you write your abstract.
626885
auxines will have a positive effect on the root growth and is especially usefull for regeneration (like you take a leaf, but it in water, add auxines, and after a while roots may appear and you have a new plant (a clone))
1078343
Umm, you aren't really going to be dipping your micropipetts into acids and bases, are you?  \n\nWhat you want to worry about are how well they fit the tips you like, or how much the tips required will cost, how ergonomic they are, and if they cover the range of volumes you want (for instance, it's really hard right now to find a multi-channel that will do < 1 uL).
899119
i did this, i used a ball of styrofome( er however you spell that) for the whole cell, and a smaller ball for the nucleus. then i just found a buncha little things for everything else. i used toothpicks with little tags on the end to label the parts
90731
Yes.  You should know that if you've looked at them under a light microscope.  This applies for pretty much all cells of the same type, since cells can be neither too big nor too small.  If they're too big, then information has a hard time travelling through the large amounts of space and cytoplasm, and the cell can't function.  If they're too small... not everything fits.
891619
1. Plant cell are constantly differentiating in a plant, as long as it has embryonic tissure (i.e. buds). In these buds, embryonic cells are born, grow and differentitate into all sorts of plant cell types.\n2. Plants facilitate the process by bringing to these burgeoning cells all the nutrients they need in their infancy. This differentiation process is crucial because it creates all the different types of cell a plant needs to live, i.e. conducting cells, structure cells, photosynthetic cellls, root cells, etc.
286293
Cancer cells have mutations in the genes that control the cell cycle.  Some of these \ngenes tell the cell cycle to proceed, in other words they are "go" genes like the \naccelerator in your car.  These are called proto-oncogenes.  Some of these genes \ntell the cell cycle to stop when the cell is done dividing and no more cells are \nneeded.  These are called tumor suppressor genes.  They are like the brake on your \ncar.  If either of these are mutated, it causes the cell cycle to go too fast, like \nhaving your accelerator stuck to the floor or losing your brakes.  So the cancer cells \ndivide too fast and pile up in one area, this is called a tumor.\nThis is an extremely complex issue.  Essentially cell cycle is everything\nwhen it comes to control of growth in cells and that is just what cancer\nis...a loss in the control of cell growth.  There are many known and\nprobably far too many more unknown control points in the cell cycle that\nnormal cells lose when the become cancerous.  These can be in any of the\nstages, G1, G2, or even S.  There are a number of genes which exert control\nin the cell cycle, on eof the best known is P53 which is implicated in over\n50% of human cancers.\n\nHope this helps!