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Q. Into which periods is mitosis has divided?
Mitosis is divided into four periods: metaphase, prophase, telophase and anaphase.
Q. What are the centrioles and in which type of cell are they present?
Centrioles are tiny cylindrical structures made of nine microtubule triplets they appear in pairs in the cell. Centrioles participate in the making of cytoskeleton and of flagella and cilia. In cell division they play a vital role in the formation of the aster fibers.
Centrioles are structures present in the animal cells, in some primitive and in most protists fungi. There are no centrioles in cells of superior plants and generally it is considered that plant cells do not have centrioles although this is not completely correct since some plants have centriole-containing cells.
The region where the centrioles are located is term as the centrosome of the cell.
What is the role of ecology to the evolution theory.
The stabilization energy of a bond or interatomic interaction is the change in energy upon breakage of a bond between two atoms (i.e., the change in energy when the atoms are moved
What is Nagel's Anomaloscope The patient is asked to match a yellow with a mixture of red and green wave lengths. A defect can be detected based on the amount of red and green
What are some examples of biological activities in which osmosis plays an important role? Hemolysis (destruction of red blood cells) by entrance of water, the hydric regulation
vasoconstriction
Why can it be said that each glucose molecule runs the Krebs cycle twice? Every glucose molecule "cycles" the Krebs cycle twice because after glycolysis each used glucose has g
What is Centrioles in cell structure? Most cells of higher organisms contain pairs of cylindrical bodies called centrioles, which help to organize microtubules in cell division
Classic Procedure: The approach is the same as described earlier for open mitral valvotomy. The excision starts with an anterior incision on the anterior leaflet at 12o'clock p
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what effects do human technologies have on our water systems?
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