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Production of substances interfering with virus proliferation
In some cases plants are known to synthesise chemicals that inhibit crucial functions of pathogens. This makes plants immune to infection by respective pathogens. Let us consider what happens when cowpea mosaic virus infects a plant. Certain cultivars of cowpea produce a strong inhibitor of a viral proteinase activity. This proteinase is required to complete the life cycle of the virus as seen in the extracts of the protoplasts of these plants. These cultivars behave as immune against cowpea mosaic virus.
Resistance of many plants to viruses is a passive preformed type e.g., mechanical barriers, lack of compatible infection sites or metabolites required for virus replication. Yet a definite part of resistance is due to active plant response. This includes new synthesis of barriers against infection and spread of virus, and also of new substances interfering with virus replication.
Energy and protein deficiencies Deficiencies of protein and energy are the most common nutrient deficiencies, which adversely affect production and performance of farm animals
Kinds of Matter On basis of its chemical organization, matter id of three categories elements, compounds and mixture An element is composed of obviously, earth similar atoms
Before we further proceed to discuss the fossil history of the humans we shall briefly look into what distinguishes humans or genus Homo from his ancestors namely the apes. These d
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In the human body, the potassium ion can pass easily through cell membranes, yet the potassium ion concentration is higher inside many cells than it is outside these cells. Could t
URINARY BLADDER - Pear shaped sac like. Situated in pelvic region of abdominal cavity. Ventrally placed. Lined by transitional epithelum. Detrusor muscle i.e. to expell out
Q. Function of Dopamine in consciousness? An increase in dopamine activity produces an increase in wakefulness. Dopaminergic neurons in the ventral tegmental areas are constant
Stereochemistry of Amino Acids: Optical Properties All amino acids (except glycine) rotate the plane of polarized light because of the presence of an asymmetric center at C-2
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Define Nutritional Management of Food Allergies and Food intolerance? In this unit we will be discussing the adverse reactions associated with food. You may have read or heard
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