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Anaphase
This phase is of shortest duration. It begins with a sudden separation of the two chromatids of each due to splitting of its centromere and then a slow movement of separted chromatids towards opposite poles of mitotic spindle . Factors responsible for splitting of centromeres and movement of attachment fibres, or the fibres gradually shorten, pulling the chromatids towards the poles. Shortening of these fibres may be due to their contraction (due to the presence of contractile actin proteinin these ) or their gradual depolymeriaztion at polar ends Simultaneously, however the continuous spindle fibres somewhat elongate, pushing the spindle poles more apart. Towards the end of anaphase when polar migration of chromatids is complete , these is a full chromosomal complement at each pole identical to the original karyotype of parent cell. Soon, a nuclear envelope forms around each polar group, presumably from the endoplasmic reticulum.
Is the epithelium vascularized? How do nutrients and oxygen reach the epithelium? Why is this feature a significant evolutionary acquisition? Epithelia are not vascularized (ca
Cholesterol Cholesterol is found in several of the animal foods we eat, involving cheese, eggs, and red meat. Just animal cells utilize and synthesize cholesterol. Click the bu
Em u l sio n preparation Frozen deboned meat, fat and by-products are tempered at 0° to 4° C for 12to 15 hr and cut into pieces and coarse minced by passing through 8, 10 o
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Arthropods - Regeneration in Invertebrates Among arthropods like insects, crustaceans, centipedes, scorpions and spiders, the capability of regeneration is low or not present.
i want notes for respiration in humans full qand to the point si i can learn them
Aortic Valve Repair : In, acquired AR associated with VSD and prolapse of a cusp, repair is often successful. VSD is closed and at the same time the prolapsed part of
Explain the Sporangiophores features of Rhizopus? 1. Sporangiophores swell at the tip into a spherical knob like structure called sporangium. It has two zones. - Central dom
An experiment with a floating egg Place an egg in a glass of fresh water and view it. Next add salt to the water and see if you can float the egg. How does this relate to the f
ROLE OF FAT OR LIPIDS - Made up of fatty acids & glycerol. Linked by ester bond. Maximum quantity of energy is librated. Helpful in temperature regulation. As stored f
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