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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.
Q. What is the etiological agent of cutaneous leishmaniasis? How is the disease transmitted and what are its typical manifestations? The protozoan Leishmania braziliensis is et
What is meant by Gene Expression? The synthesis of protein under the influence of gene is called Gene Expression. All human cells are derived from a single cell, fertilized egg
The Different systems of the body are: 1) Nervous System 2) Respiratory System 3) Cardiovascular System 4) Neurological and Sensory System 5) Gastrointestinal Syste
Industrial Effluents - Causes of Water Pollution Most industrial operations produce effluents that are discharged into nearby river or any other water body. The industrial eff
Classification of the Phylum Protozoa up to orders
Q. Fiehes test and Aniline chloride test? Determine the adulteration in the given honey sample by Fiehe's test and Aniline chloride test This activity will help you to: •
How does brain recognize difference between high and low c and soft and loud sounds?
How do the rough endoplasmic reticulum and the Golgi apparatus act in the production and releasing of proteins? The rough endoplasmic reticulum has in its outer membrane many r
Q. Concerning digestion how are poriferans characterized? Sponges are diverse from other animals since they present only intracellular digestion. Do they release digestive enzy
Define Role in growth and cellular Differentiation? The growth and differentiation of epithelial cells throughout the body are especially affected by vitamin A deficiency. In
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