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Q. Show the Embryological Evidence?
Embryology is the study of the successive stages of sporogencsis , gametogenesis and the growth and development of the embryo. The number of nuclei in the pollen grains at the time of pollen dispersal is either two or three. Double fertilisation is an example of embryological unity throughout the angiosperms. Based on the number of cotyledons, monocotyledons are separated from dicotyledons. The binucleate pollen is derived. Embryology has had systematic significance in the grass family, where with several other characters it has been used to revise the family's classification. In animals the embryological evidence is of great significance, e.g. the Anopheles maculipennis complex is broken into a number of sibling species on the basis of their egg structure. In Dacus oleae and ceratitis capitata.(fruit flies) the whole eggs are separated on the basis of the character of anterior pole and the whole classification of white flies is primarily based on the structure of their pupae.
Radioactive pollution is a very special form of pollution of air, water and soil with radioactive material. Its nature of contamination and effects are different from those of othe
What is shunts in Congenital Heart Surgery? Shunts : Blalock Shunts are connections between systemic arteries such as a subclavian arteiy with its respective pulmonary arteiy
Q. What is the action mechanism of the antiretroviral drugs known protease inhibitors which are used against HIV infection? Protease inhibitors are some of the antiretroviral d
Anticonvulsants and Cerebral Palsy Anticonvulsants : drugs that prevent reduce or stop convulsions or seizures. Cerebral Palsy: A group of chronic foundations affecting
Foetal maceration and mummification Foetal mummification occurs when the foetus dies in the uterus in the absence of air and bacterial contamination and the cervix remains tig
Determination of Nicotinic acid The chemical methods of assay are based on colour reactions of pyridine. Nicotinic acid and nicotinamide are converted by cyanogen bromide into
Explain about colloidal system A colloidal system, on the other hand, is a heterogeneous system. The material that forms the base of the system is called the dispersion medium
What is Thermoregulation in Cold? Heat production parallels the increase in O 2 uptake, the magnitude of which depends on the muscle mass .engaged in slivering or work and the
Explain the Recombinantion of DNA ? Recombinant DNA is made by combining DNA from more than one source - often from very different species. The technique is now the basis fo
Others Factors Affecting Occupational Health The list of factors which affect the occupational health and that need standard organising, scrutiny, inspection, surveillance and
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