The scientific process by which crop plants are enriched with certain desirable nutrients is called
Harmful mutations does not get eliminated from gene pool because
Sweet potato is homologous to
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Solution
Sweet potato and turnip both are roots and become modified for special functions, the most common being the formation of tuberous roots for food storage
The diaphragm, cervical cap and vaults are
Which of the following triggers seed germination ?
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Solution
The uptake of water by the seed begins the processes that lead to seed germination.
Secondary sewage treatment is mainly a
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Solution
In secondary treatment mainly settled sewage flows to an aerobic biological treatment stage where it comes into contact with micro-organisms which remove and oxidise most of the remaining organic pollutants.
Cells of tissue are living, show angular wall thickening and provide mechanical support. The tissue is
Full form of B.O.D. is –
Total No. of muscles in our body is
Which one of the following statements about certain given animals is correct?
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Solution
Acoelomates are animals that have no body cavity or coelom. The examples are poriferans, coelenterates,ctenophore, platyhelminthes. Pseudo-coelomates are animals that has false or pseudo coelom. Examples are aschelminthes. Coelomates are animals that has true coelom enclosed by mesoderm on both sides. Examples:from annelida to arthropoda are coelomates. Henceroundworms are pseudocoelomates, molluscs and insects are coelomates while flatworms are acoelomates
Which one of the following human organs is often called the graveyard of RBCs?
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Solution
Spleen is an organ of the lymphatic system located in the left side of the abdominal cavity under the diaphragm,the muscular partition between the abdomen and the chest. It is called graveyard of RBC because fragment of red blood cells, old and dead cells are constantly being removed from the blood streams by it.
When a flower has both androecium and gynoecium, it is known as-
The type of muscles present in our :
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Solution
Thigh muscles are skeletal muscles that are striated and voluntary.
Which of the following substances is not an essential component of the tricarboxylic acid cycle?
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Solution
NADP is a coenzyme of dehydrogenases participating in photosynthesis and pentose phosphate pathway.In TCA cycle the coenzyme is either NAD or FAD.
The bond between phosphate and hydroxyl group of sugarin nucleic acid is
The seed in which endosperm is used by embryo is
Which one of the following is a viral disease of poultry ?
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Solution
New castle disease (ND) is a highly contagious, generalised viral disease of domestic poultry and wild birds characterised by gastro-intestinal, respiratory and nervous signs.
Question contain STATEMENT-1 (Assertion) and STATEMENT-2 (Reason).Each question has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1 : Hydroponics is used for solution culture.
Statement 2: A balanced nutrient solution contains both essential and nonessential elements.
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Solution
Solution culture is being used for raising flowers and vegetables at home. This soilless production of plants is called hydroponics. A solution having all the essential elements in proper proportion is called normal or balanced nutrient solution.
Select the correct statement with respect to diseases and immunisation.
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Solution
B and T-lymphocytes produce antibodies against pathogen in the body,if due to some reason Band T lymphocytes are damaged the body will not produce antibodies against a pathogen. Each B cell and T cell is specific for a particular antigen.
The four elements that make up 99% of all elements found in a living system are: