Onions like all plants grow primarily at the tip which is called the apical meristem. Since onions do not branch out, there are no lateral meristems as there would be on a branched plant, so almost all growth is at the tip.
The reason for mitosis occurring most commonly in the onion root tip is because the onion root tip is a rapidly growing area of the plant.
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Nails grow from an area of rapidly dividing cells known as the nail root. The nail root is located at the tips of fingers and toes. During cell division, the cells of the nail root fill with keratin and produce a tough, platelike nail that covers and protects the tips of fingers and toes.
Onion root tips
Most people would inform that growing onion could be done in any area throughout the winter but it is important that considerations be given when planting them. One of the factors to consider when planting is about the place where you stay like if you live in the South or the North. The long day onions would be a good choice to plant if you live in South. Typically this would need about sixteen 16 hours of exposure to sun each day. For those who live in the north, it would be best to use those short day onion types that require twelve hours of sun to grow. Also try to get some tips from Nurseries or other gardeners in the area.
Tim's Kitchen Tips - 2013 French Onion Dip 1-2 was released on: USA: 1 July 2013
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They grow from the bottom, at the base of the follicle.
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Chew your food, Chew it to the extent that it is liquid. This will help in digesting the food rapidly.
The time of cell division usually relates to the life span of a plant or animal. For onion root tips, the length of the cell division is related to the life span of the onion plant.