Blood of AB group cannot be given to B group patient because :
The ABO blood group system consists of 4 types of blood group – A, B, AB, and O and is mainly based on the presence or absence of antigens on RBC and antibodies in the plasma. Individuals with AB blood group have Both Antigen A and Antigen B on RBC and no antibodies in plasma and individuals with B blood group have antigen B on RBC and Anti A antibodies in plasma. Blood of AB group cannot be given to B group patient because the patient has Anti A antibodies. The Anti A antibodies attack the blood cells of AB blood group person (as they have Antigen A on their RBC) and destroy them.
So, the correct answer is 'No Anti A and Anti B antibody'.
Trehalose sugar--->The non-reducing disaccharide, trehalose, is found in the haemolymph of several insects, and trehalose is an insect blood sugar..Trehalose is the major carbohydrate energy storage molecule used by insects for flight.One possible reason for this is that the glycosidic linkage of trehalose, when acted upon by an insect trehalase, releases two molecules of glucose, which is require... mored for the rapid energy requirements of flight.Trehalose is widespread in bacteria, fungi, yeast, insects and plants, but is absent from vertebrates.
Aldosterone causes sodium to be absorbed and potassium to be excreted into the lumen by principal cells. In alpha intercalated cells, located in the late distal tubule and collecting duct, hydrogen ions and potassium ions are exchanged. Hydrogen is excreted into the lumen, and the potassium is absorbed.Aldosterone (C21H28O5) is a mineralocorticoid hormone compound secreted by the adrenal gland cor... moretex. It is part of the renin angiotensin aldosterone system or RAAS and is an integral part of the complex mechanisms that control water and electrolyte balance within the body. Its action affects sodium, potassium and water levels via the excretory and circulatory systems.
External factors affecting the rate of transpiration are: atmospheric humidity, temperature, light, wind velocity, atmospheric pressure and available soil water. Some internal factors also affect rate of transpiration e.g., leaf area, leaf structure and age of plants. Chlorophyll content of leaves does not directly affect rate of transpiration. hence, option d is correct one.
In meiosis, two divisions occur after one round of DNA replicatIon. The first division is reductional and homologous chromosomes separate during this division but second division is equational as centromere splits during second division. Sister chromatids move towards opposite poles in anaphase II of second division. hence , correct option is b.
Myosin is formed of the myofibril, which is very fine contractile fibres. Myofibril is groups of fibres, which extend in parallel columns along the length of striated muscle fibres. These binds to the actin and leads to shortening of sarcomeres. It hydrolyzes the ATP to form ADP, which is used for muscle contraction.
YAC refers to the yeast artificial chromosome which is derived from DNA of yeast S. ... The DNA is ligated into the bacterial plasmid. By inserting large fragments of DNA, the inserted sequences can be cloned and mapped by chromosome walking and this method was used in the Human Genome Project.
The concentration of urine is controlled by vasopressin by regulating the reabsorption of water in the collecting tubule. It is known as antidiuretic hormone released by the posterior pituitary. It triggers the release of aldosterone and increases the concentration of sodium ions in the blood. The increased salt concentration in the blood increases the blood osmotic potential which further increas... morees the reabsorption of water into the collecting tubule and thus the urine released is the concentrated one. In the absence of vasopressin, the water absorption in the collecting tubules is less so the urine produced is dilute one. So, the correct answer is 'ADH and aldosterone'.
Renal vein contains the least amount of urea. The renal artery enters the kidney as afferent arteriole. It carries the urea loaded blood into the glomerulus of the kidney. The blood is filtered by the glomerulus into the Bowman's capsule and runs parallel to the Loop of Henle. The urea is absorbed into the nephric filtrate by the process of tubular secretion in the loop of Henle, distal convoluted... more tubule and collecting duct. The process of tubular secretion helps to secrete the urea from the blood to the collecting duct which is finally excreted in form of urine. The purified blood comes from the kidney through the renal vein which has the blood with the least amount of urea. So, the correct answer is 'Renal vein'.
The term New Systematics was given by Sir Julian Huxley in 1940. This classification take into account the cytological , morphological , genetical , anatomical and physiological characters....A.P de Condolle termed taxonomy , Linnaeus is related to artificial taxonomy whereas Bentham & Hooker is related to natural classification system..New Systematics can also called as BIOSYSTEMATICS.
Rhizome is an horizontally growing underground stem as in ginger. Solanum tuberosum is potato, which can be propagated vegetatively by fleshy stem called tuber. Achyranthes usually shows sexual reproduction.
The calcium ions bind to the phosphateand are present in the dietary food sometimes calcium phosphate is a salt which is insoluble in water the calcium ions are absorbed by the cells of the intestinal as per the requirement the excess of calcium nd phosphate ions are excreted by the large intestine in the form of fences
In XO, 50 g element combines with 50 g oxygen 1 g element combines with 1 g oxygen. In XO2, 40 g element combines with 60 g oxygen 1 g element combines with 1.5 g oxygen Thus, ratio of masses of oxygen which combines with 1 g of element is 1 : 1.5 or 2 : 3. This is in accordance with the law of multiple proportions. In (B) the law of reciprocal proportions is followed. In (A) law of conservation of mass is followed while in (D) Avogadro’s law is followed