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Chemotaxis - Modes of Cell Movement
Chemotaxis considers to me directed movement of cells in response to a concentration gradient of a chemical factor in solution. An instance of chemotaxis during morphogenesis of the embryo is the migration of embryonic lymphocytes from bone marrow to embryonic thymus. The compound accountable for the directed movement of cells is shown to be a heat-stable peptide with a molecular weight of 1000 to 4000 daltons. The peptide is almost certainly produced by the thymus. The gradient of the peptide would be highest in the thymus towards that the cells move.
Left Antero Lateral Thoracotomy Approach : Arterial and central venous pressure monitoring lines are placed. A left antero lateral thoracotomy is done through the 5th or 4th
Q. Explain Shannon-Wiener index? This diversity measure is based on information theory of measure of order (or disorder) within a particular system. For our uses, this order co
What is test battery A series of tests (called a test battery) will be given. One widely used battery is Halstead Reitan, which includes measures of verbal and nonverbal intell
Rituals: The social life of the earliest human groups or tribes revolved around food gathering. To begin with, they must have collected anything they could eat-seeds, nuts, f
LETHAL GENE (2:1 Instead of 1 : 2 : 1 or 3 : 1) (i) All the genes present in an organism are not useful, but some of them show harmful effects and sometimes may cause d
#Most of the world''s flightless birds are either nocturnal and secretive (e.g. the kagu) or large, swift and well-armed (the ostrich). The exceptions are found primarily on island
Chlorine (Cl) - Micronutrients The role of Cl - in plant is not clearly understood. Cl - is required in Hill reaction, the water splitting reaction of photosystem II. In the
Sexual Reproduction All metazoans, if or if not capable of propagating asexually, produce special cells termed as gametes. The gametes may be either male gametes or sperms or
How does the contraceptive diaphragm work? What are the limitations of this contraceptive method? The contraceptive diaphragm is an artifact made of latex or plastic that when
Define drug effects on food intake - cause dry mouth? cause dry mouth (xerostomia) : Lack of saliva makes it difficult to masticate and swallow foods, especially those of a dry
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