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Loading and Unloading of Sieve Tubes
In order to understand the loading of food from manufacturing leaf cells to sieve tubes we must examine the anatomy of a minor vein shown in Figure. We can see
Figure: A cross-section of a minor leaf vein. (MC-Mesophyll Cell, XE -Xylem Elements, SE-Sieve Element, TC-Transfer Cells, PP-Phloem Parenchyma cell.
a xylem vessel (X), two sieve elements (SE) which are relatively smaller than other cells and without cytoplasm, the modified companion cells or transfer cells (TC) with dense cytoplasm and phloem parenchyma (PP) which is less dense and vacuolated.
Q. Fats requirements for ulcerative colitis? Usual foods, which contain fats (invisible or inherent fat), are permitted but not fried foods, as they are not easily digested due
Diplotene: The paired chromosomes repel each other and begin to separate. Separation however, is not completed, because homologous chromosomes remain united by their point
Why is not Mendel's second law always valid for two or more phenotypical traits of an individual? Mendel's second law, or the law of the independent assortment, is valid for g
Post-partum anoestrus Reproductive efficiency among animals greatly depends upon detection of estrus. This is even more important in reference to small herds managed under tro
What are the Risks of migration Eg Getting lost (blown off course or similar) and the effect of this when there is a limited fuel supply. Insufficient food to build
Classification in terms of reservoir host 1. Anthropozoonoses: Infections transmitted from lower vertebrate to man, e.g., rabies, plague, leptospirosis, etc. 2. Zooanthro
How many different molecules composed of (A) two (B) three, and (C) four amino acids, linked together by peptide bonds, can be made from the set of 20 naturally occurring amino aci
Cyclostomes - Regeneration in Vertebrates The larvae of the lampreys between the jawless primitive fishes are able to regenerate their amputated tail. Blastema is made at the
Use of trichomoniasis in pregnancy Trichomoniasis in pregnancy has been associated with adverse pregnancy outcomes (D Soper, Am J Obstet Gynecol 2004; 190:281). Metronidazole
Question 1: Describe the term Intellectual Property Rights. Show the difference between Patents, industrial designs, and trademarks. Define the term Intellectual Property
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