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Metaphase
This is a period of short duration, the chromosomes are at the stage of their maximum condensation and , hence more clearly visible ,Upon each side of their centromeres, a plate or cup like dise ,formed of protein complexes and called kinetochore , appears in the depression of the chromatid of this side the kinetochore of each side is seen to be attached to a bundle of a number ( usually 20 to 40 ) of newly formed spindle fibres called discontinuous , or attachment , or chromosomal , or interzonal spindle fibres . The opposite ends of these fibres are attached to the spindle poles of their respective sides. These fibres pull the scattered chromosomes and align then in a fixed specific manner at the equatorial plane of the spindle forming what is known as the equatorial or metaphase plate.
What are the excretory organs in protozoa.
Y-Linked traits in humans Any gene that occurs exclusively on the Y chromosome is said to be holandric and it is not expressed in females. Such a Y-linked gene normally occurs
Nutrition in amoeba?
Directional or progressive selection is the mode of selection associated with environmental change. We said earlier that in an unchanging environment stabilising selection removes
Choice of a prophylactic agent An effective prophylactic regimen should be directed against the most likely infecting organisms, but need not eradicate every potential pathogen
Temperature - Seed Dormancy Low temperature treatment is an essential prelude to germination in many seeds, and high temperature may be inhibitory at the time of germination.
SALI V A R Y GLAND - These are compound - Alveolar, tubular glands made up of columnar / cuboidal epithelium. Saliva is manufactured in them. In mammals these are pai
Q. Briefly explain about semantides? The information carrying molecules in plants are called semantides, and they have been recognised to be 3 kinds; deoxyribonucleic acid or D
Classic Repair (Linear repair) : The operation is done under cardio pulmonary bypass, through median sternotomy. If additional CABG is required, conduit harvesting is done.
Determine fat-soluble vitamins Recommended for Infant? ICMR (1990) does not give recommendations for vitamins D, E and K. As you already know, vitamin D is expected to be met
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