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Biology Test 40
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    mountain ranges

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    Which landforms are not classified into a major biome?
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    Robert Brown

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    Nucleus, the genetic material containing rounded body in each cell, was first discovered in 1831 by   ?
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    3

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    How many pairs of contrasting characters in pea pod were chosen by Mendel ?
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    they are not organisms

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    Viruses are denied a kingdom of their own because
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    blood platelets

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    Prothrombin which helps in clotting of blood is released by ?
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    Both 1 and 2

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    Consider the following statements : 1. Toothless mammals such as pangolins are not found in India. 2. Gibbon is the only ape found in India. Which of the statements given above is/are correct ?
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    Ronald Ross

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    Who discovered the germ of malaria ?
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    Destruction of helper-T-cells

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    ‘AIDS’ is due to:
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    500

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    To measure the population density of monarch butterflies occupying a particular park, 100 butterflies arecaptured, marked with a small dot on a wing, and then released. The next day, another 100 butterflies are captured, including the recapture of 20 marked butterflies. One would correctly estimate the population to be.
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    Dopamine

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    Which of the following substances can cure Parkinson’s disease?
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    Apoptosis

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    The cellular and molecular control of programmed cell death is known as
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    1,2 and 3

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    Consider the following statements: 1. Tapeworm is a hermaphrodite. 2. Round-worm has separate sexes. 3. Filaria is caused by a nematode. 4. Guinea -worm is an annelid. Which of these are correct ?
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    Both 1 and 2

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    Consider the following statements: 1. Sweet orange plant is propagated by grafting technique. 2. Jasmine plant is propagated by layering technique. Which of the statements given above is/are correct  ?
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    Calcium and Phosphorus

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    Which of the following are required for the formation of bones and teeth?
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    Sodium bicarbonate

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    Ordinary table salt is sodium chloride. What is baking soda ?
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    A = s, B = r, C = t, D = q

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    Match the types of immunity listed in Column I with the examples listed in Column II. Choose the answer that gives the correct combination of alphabets of the two columns : Column I                      Column II Types of immunity      Example A. Natural active          p. Immunity developed by heredity B. Artificial passive     q. From mother to foetus through placenta C. Artificial active         r. Injection of antiserum to travellers D. Natural passive       s. Fighting infections naturally t. Induced by vaccination
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    Red

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    What rays of sunlight are mostly utilized by chlorophyll in photosynthesis ?
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    Rough endoplasmic reticulum

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    First level of processing/modification of proteins occurs in
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    temperature.

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    Each of the following is a density-dependent limiting factor EXCEPT..
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    X-rays

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    CT Scan is done by using ...
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    They have a lot of biomass but not a large variety of species.

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    Which of the following is a factor that makes estuaries unique?
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    Riboflavin

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    What is the other name for Vit. B2 ?
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    only conifers

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    Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with_____.
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    A-(4),B-(1),C-(2),D-(3)

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    List-I  (Bone)                           List-II(Name) A. Breast -bone                      1. Clavicle B. Collar-bone                        2. Patella C. Knee-cap                           3. Scapula D. Shoulder blade                    4. Sternum
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    cumbersome

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    A major problem with polynomial names was that they were
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    XXY

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    Persons with Klinefelter’s syndrome have chromosomes :
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    Flora and Fauna

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    \'Biosphere Reserve Project\' is aimed at protecting
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    1 and 2

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    Consider the following statements : 1. Femur is the longest bone in the human body. 2. Cholera is a disease caused by bacteria. 3. 'Athlet's foot is a disease caused by virus. Which of the statements given above are correct ?
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    Weeds clinging to the roots of trees in your backyard.

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    Which of the following is an example of a symbiotic relationship?
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    Coronary arteries

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    Arteries supplying blood to the heart are called
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