Recent questions in Biology

Asafoetida is a

asked Nov 22, 2013 by thanvigandhi_1

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The scientific term which is not related to the primary constriction of a chromosome is

asked Nov 22, 2013 by thanvigandhi_1

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Scale bark is seen in

asked Nov 22, 2013 by thanvigandhi_1

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The position of the micropyle' found in an orthotropous ovule are turned down about $160^{\circ}$ ( degrees ) with reference to the funicle. In addition the ovule and embryo sac are curved. Such a type of ovule is called as

asked Nov 22, 2013 by thanvigandhi_1

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Free central placentation is found in

asked Nov 22, 2013 by thanvigandhi_1

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Modification of bract in Typhonium is a

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Geitonogamy is found in

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In Fabaceae, the floral structures which enclose the essential organs are

asked Nov 22, 2013 by thanvigandhi_1

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Inflorescence in Jatropha is a

asked Nov 22, 2013 by thanvigandhi_1

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The following plant produces both offsets and bulbils

asked Nov 22, 2013 by thanvigandhi_1

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The following features are found in both Balanophora and Casuarina

asked Nov 22, 2013 by thanvigandhi_1

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Root, stem and leaf are all modified in

asked Nov 22, 2013 by thanvigandhi_1

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Balancing roots are seen in

asked Nov 22, 2013 by thanvigandhi_1

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The earlier institute established at Pusa, is now called as

asked Nov 22, 2013 by thanvigandhi_1

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Match the following

asked Nov 15, 2013 by thanvigandhi_1

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The application of polymerase Chain Reaction is :

asked Nov 15, 2013 by thanvigandhi_1

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Haemopoietic stem cells are :

asked Nov 15, 2013 by thanvigandhi_1

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Find the frequency of heterozygotes in a population which exhibits the Hardy-Weingberg equilibrium, if the frequencies of the two alleles in the population are 0.6 and 0.4 :

asked Nov 15, 2013 by thanvigandhi_1

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Statement (S) : The concept of survival of the fittest is central to natural selection. Reasons (R) : Individuals who possess advantageous characters to adapt to the environment have better potential for survival.

asked Nov 15, 2013 by thanvigandhi_1

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Match the following in Drosophila with reference to *** determination :

asked Nov 15, 2013 by thanvigandhi_1

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Drumstick Barr bodies are found in :

asked Nov 14, 2013 by thanvigandhi_1

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A mother with blood group 'B' type has a child with blood group type 'O' . What is the possibility of the genotypes of that mother and father ?

asked Nov 14, 2013 by thanvigandhi_1

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The macrophages present in the liver are called :

asked Nov 14, 2013 by thanvigandhi_1

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The inability to regulate the concentration of sodium ions in the blood could be due to the improper functioning of one of the following :

asked Nov 14, 2013 by thanvigandhi_1

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Identify the ' place of hydrolysis of ATP ' and the ' power stroke ' in muscle contraction, in the picture given below :

asked Nov 14, 2013 by thanvigandhi_1

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Which event of the ' action potential ' is indicated by the letter (A) in the diagram ?

asked Nov 14, 2013 by thanvigandhi_1

1 answer

Match vertebral number and the corresponding region in rabbit :

asked Nov 14, 2013 by thanvigandhi_1

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Which one of the following statements is not true with reference to the genes of eukaryotic animals?

asked Nov 14, 2013 by thanvigandhi_1

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Which of the following is an autoimmune disorder ?

asked Nov 14, 2013 by thanvigandhi_1

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Mitral valve is :

asked Nov 14, 2013 by thanvigandhi_1

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Number of oxygen molecules bound in a saturated haemoglobin molecule :

asked Nov 14, 2013 by thanvigandhi_1

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Arrange the correct sequence of enzymes which act on food in different regions of alimentary canal :

asked Nov 14, 2013 by thanvigandhi_1

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The animal with epipubic bones and a chorioallontoic placenta is :

asked Nov 14, 2013 by thanvigandhi_1

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Which of the following exhibit discontinuous distribution ?

asked Nov 13, 2013 by thanvigandhi_1

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Ductus Botalli connects :

asked Nov 13, 2013 by thanvigandhi_1

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Select the animal from the examples given below which exhibits neoteny in its larval stage :

asked Nov 13, 2013 by thanvigandhi_1

1 answer

The scientific name of Kashmiri stag is :

asked Nov 13, 2013 by thanvigandhi_1

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Which one of the following arthropods is viviparous ?

asked Nov 13, 2013 by thanvigandhi_1

1 answer

Statement (S) : Biting and chewing mouth parts are the most primitive type of mouth parts in insects. (Reasons (R) : Holometabolus insects have biting and chewing type of mouth parts in their larvae.

asked Nov 13, 2013 by thanvigandhi_1

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In cockroach, the thermoreceptor sensilla are present on :

asked Nov 13, 2013 by thanvigandhi_1

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The cells, present in the fat bodies of cockroach, which contains symbiotic bacteria that synthesize amino acids are :

asked Nov 13, 2013 by thanvigandhi_1

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In pheretima, the open type of nephridia are located in these segments :

asked Nov 13, 2013 by thanvigandhi_1

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In pheretime, septa are absent between some of the segments. They are :

asked Nov 13, 2013 by thanvigandhi_1

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Match the following

asked Nov 13, 2013 by thanvigandhi_1

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The process by which a new structure is formed in the tissue of the host during parasitic infection :

asked Nov 13, 2013 by thanvigandhi_1

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The fusion of pronuclei of dissimilar gametes is called :

asked Nov 13, 2013 by thanvigandhi_1

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Match the following :

asked Nov 13, 2013 by thanvigandhi_1

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The plane that divides the body into right and left halves :

asked Nov 12, 2013 by thanvigandhi_1

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Match the types of animal tissues given under List - I with the parts / organs in which they occur, given under List - II :

asked Nov 12, 2013 by thanvigandhi_1

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Which of the following is the correct sequence of cell cycle ?

asked Nov 12, 2013 by thanvigandhi_1

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