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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.
Characteristic of Ecotone A general characteristic of ecotone is that it has sufficiently greater number of species and the diversity of most of the species at times is higher
Q. What are the flat bones and the long bones? The main bones of the body may be classified as long or flat bones there are bones not classified into these categories. Instance
Under which forms is the Trypanosoma cruzi found in its hosts? In the definitive hosts as well as in triatomine bugs (middle hosts) the protozoan that causes Chagas' disease ch
It is the preparatory phase. Cell organelle replicate and size of the cell increases. DNA molecule undergoes replication. Each chromosome exists as a pair of chromatids joined toge
Which of the following experimental steps permitted Hershey and Chase to verify that the transforming agent in a bacteriophage is DNA as well? A. Phage particles were mixed wit
what is the mode of nutrition in crocodile
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Food-borne Clostridium Clostridium botulinum and Cl. perfringens, the two members of the group have been implicated in food-borne illnesses. C. botulinum causes classical food
Q. Define Clostridium perfringens-associated gastroenteritis? Clostridium perfringens-associated gastroenteritis is a food borne disease which is frequently reported and is
Explain Absorption and Metabolism of Minerals? All minerals in the diet are not equally absorbed. Also different compounds and complexes of same mineral are absorbed with diffe
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