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An egg osmometer
Place some dilute hydrochloric acid or strong vinegar in a shallow dish, likeas a saucer, to a depth of about one centimetre. Hold the large end an egg in the acid unless the shell has been eaten away on the end leaving the thin membrane exposed. Rinse the acid from the egg. With a shar instrument work a small hole by the shell at the other end. Insert a soda straw or a length of glass tubing by the hole into the interior of the egg. Seal the opening around the tube with house hold cement or sealing wax. This must be absolutely tight. Place the osmometer in a glass of water and let it stand for a few hours.
Animal disease model The second area of transgenic application in agriculture is to develop lines of animals resistant to some specific damaging diseases. While the genes of in
Q. Why can the amphibian circulation be classified as incomplete and double? The amphibian circulation is double because it is composed of pulmonary and systemic circulations r
The allele that causes albinism (p) is recessive to the allele for normal pigmentation (P). A normal woman whose father is an albino marries an albino man whose parents are both no
XYY humans are fertile males. XXX humans are fertile females. What do these observations reveal about the mechanisms of sex determination and dosage compensation?
Q. How do the muscles of the legs and of the feet contribute to the venous return? The muscles of the legs mainly the muscles of the calves compress and contract the deep veins
Meselson and Stahl demonstrated that DNA replication is a semi-conservative process. Which of the following best explains the definition of "semi-conservative"? A. The two stra
Q. What do you mean by Current Impediments? Given the impressive list of past achievements, we expect that quantitative process to biological problems will continue to repay us
Proteases of animals From the table you can see that these exopeptidases and endopeptidases attack specific peptide bonds depending on the chemical group near them. The inacti
What is Cartilage explain briefly? Some bones, such as the bones in the skull, develop directly from membranous connective tissue, but in human fetal development, most of the s
Results : Pericardiectomy used to have a mortality of 10-15 per cent in the earlier era. At present it is around 3 to 5 per cent and does not approach 0 per cent even though it
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