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Recent questions tagged 2008

The blood calcium level is lowered by the deficiency of ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

During the propogation of a nerve impulse, the action potential results from the movement of :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

What wil happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor ?

asked Dec 21, 2013 by thanvigandhi_1

1 answer

Given below are four methods (A - D ) and their modes of action ( a - d) in achieving contraception. Select their correct matching from the four options that follow :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Given below is a diagrammatic cross section of a single loop of human cochlea :

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Which one of the following items gives its correct total number ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

Which one of the following is the correct difference between Rod cells and Cone cells of our retina ?

asked Dec 21, 2013 by thanvigandhi_1

0 answers

What is vital capacity of our lungs ?

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product ?

asked Dec 20, 2013 by thanvigandhi_1

1 answer

Which one of the following is the true description about an animal concerned ?

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin ?

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Electrons from excited chlorophyll molecule of photosystem II are accepted first by :

asked Dec 20, 2013 by thanvigandhi_1

1 answer

The fleshy receptacle of syconus of fig encloses a number of :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Replum is present in the ovary of flower of :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

The energy releasing process in which the substrate is oxidised without an external electron acceptor is called :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Nitrogen fixation in root nodules of Alnus is brought about by :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Endosperm is consumed by developing embryo in the seed of :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Importance of day length in flowering of plants was first shown in :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

In leaves of $ C_4$ plants malic acid synthesis during $ CO_2$ fixation occurs in :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Vascular tissues in flowering plants develop from :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

The rupture and fractionation do not usually occur in the water column in vessel / tracheids during the ascent of sap because of :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Dry indehiscent single - seeded fruit formed from bicarpillary syncarpous inferior ovary is :

asked Dec 20, 2013 by thanvigandhi_1

1 answer

The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

The $ C_4$ plants are photosynthetically more efficient than $ C_3$ plants because :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

The fruit is chambered, developed from inferior, ovary and has seeds with succulent testa in :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Which one of the following pairs of items correctly belongs to the category of organs mentioned against it ?

asked Dec 20, 2013 by thanvigandhi_1

1 answer

Darwin's Finches are an excellent example of :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Which one of the following is incorrect about the characteristics of protobionts ( coacervates and microspheres ) as envisaged in the abiogenicorigin of life ?

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Which one of the following scientist's name is correctly matched with the theory put forth by him ?

asked Dec 20, 2013 by thanvigandhi_1

1 answer

What is true about the isolated small tribal population ?

asked Dec 20, 2013 by thanvigandhi_1

0 answers

In the DNA molecule :

asked Dec 18, 2013 by thanvigandhi_1

0 answers

Which one of the following conditions in humans is correctly matched with its chromosomal abnormality / linkage ?

asked Dec 18, 2013 by thanvigandhi_1

1 answer

Which one of the following pairs of nitrogenous basis of nucleic acid, is wrongly matched with the category mentioned against it ?

asked Dec 18, 2013 by thanvigandhi_1

0 answers

Haploids are more suitable for mutation studies than the diploids. This is because :

asked Dec 18, 2013 by thanvigandhi_1

0 answers

Thorn of Bougainvillea and tendril of cucurbita are examples of :

asked Dec 18, 2013 by thanvigandhi_1

1 answer

The two sub units of ribosomes remain united at a critical ion level of :

asked Dec 18, 2013 by thanvigandhi_1

0 answers

In germination seeds fatty acids are degraded exclusively in the :

asked Dec 18, 2013 by thanvigandhi_1

0 answers

Keeping in view the ' fluid mosaic model ' for the structure of cell membrane, which one of the following statement is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other ( described as flip flop movement ) ?

asked Dec 18, 2013 by thanvigandhi_1

1 answer

In the light of recent classification of living organisms into three domains of life ( bacteria, archaea and eukarya ) , which one of the following statements is true about archaea ?

asked Dec 18, 2013 by thanvigandhi_1

0 answers

Carbohydratesare commonly found as starch in plant storage organs. Which of the following five properties of starch (a-e) make it useful as a storage material ?

asked Dec 18, 2013 by thanvigandhi_1

0 answers

Polysome is formed by :

asked Dec 18, 2013 by thanvigandhi_1

2 answers

A competitive inhibitor of succinic dehydrogenase is :

asked Dec 18, 2013 by thanvigandhi_1

0 answers

Vacuole in a plant cell :

asked Dec 18, 2013 by thanvigandhi_1

1 answer

Celulose is the major componet of cell walls of :

asked Dec 18, 2013 by thanvigandhi_1

0 answers

Which one of the following is not a characteristic of phylum Annelida ?

asked Dec 18, 2013 by thanvigandhi_1

0 answers

Ascaris is characterized by :

asked Dec 18, 2013 by thanvigandhi_1

1 answer

Which one of the following in birds, indicates their reptilian ancestry ?

asked Dec 18, 2013 by thanvigandhi_1

1 answer

Which one of the following phyla is correctly matched with its two general characteristics ?

asked Dec 18, 2013 by thanvigandhi_1

1 answer

Which one of the following groups of three animals each is correctly matched with their one characteristics morphological feature ?

asked Dec 18, 2013 by thanvigandhi_1

1 answer

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