Recent questions tagged zoology

Calcium is important in skeletal muscle contraction because it

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Which of the following is an occupational respiratory disorder ?

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Match the item given in Column I with those in Column II and select the correct option given below :

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Match the item given in Column I with those in Column II and select the correct option given below :

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Match the item given in Column I with those in Column II and select the correct option given below :

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Match the items given in Column I with thos in Column II and select the correct option given below :

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Which of the following options correctly represents the lung conditions in asthma and emphysema, repectively ?

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The difference between spermiogenesis and spermiation is

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The amnion of mammalian embryo is derived from

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The contraceptive 'SAHELI'

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Hormones secreted by the placenta to maintain pregnancy are

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Which part of poppy plant is used to obtain the drug "Smack" ?

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Conversion of milk to curd improves its nutritional value by increasing the amount of

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The similarity of bone structure in the forelimbs of many vertebrates is an example of

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Which of the following is not an autoimmune disease ?

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Among the following sets of examples for divergent evolution, select the incorrect option :

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In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic vessels ?

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According to Hugo de Vries, the mechanism of evolution is

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Match the item given in Column I with those in Column II and select the correct option given below :

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All of the following are part of an operon except

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Which of the following is an amino acid derived hormone ?

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Which of the following structures or regions is incorrectly paired with its functions ?

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Which of the following hormones can play a significant role in osteoporosis ?

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The transparent lens in the human eye is held in its place by

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The correct order of steps in Polymerase Chain Reaction (PCR) is

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In India, the organisation responsible for assessing the safety of introducing genetically modified organisms for public use is

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Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes ?

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In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilization ?

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A disease caused by an autosomal primary non-disjunction is :

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A decrease in blood pressure/volume will not cause the release of :

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The pivot joint between atlas and axis is a type of :

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A temporary endocrine gland in the human body is :

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Frog’s heart when taken out of the body continues to beat for sometime. Select the best option from the following statements. (a) Frog is a poikilotherm (b) Frog does not have any coronary circulation (c) Heart is “myogenic” in nature (d) Heart is autoexcitable

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Which cells of ‘Crypts of Lieberkuhn’ secrete antibacterial lysozyme ?

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The hepatic portal vein drains blood to liver from :

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A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent ?

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Myelin sheath is produced by :

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Which of the following represents order of ‘Horse’ ?

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Hypersecretion of Grwoth Hormone in adults does not cause further increase in height, because :

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Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements. (a) Vitamin A derivatives are formed from carotene. (b) The photopigments are embedded in the membrane discs of the inner segment (c) Retinal is derivative of Vitamin A (d) Retinal is a light absorbing part of all the visual photopigments

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Which among these is the correct combination of aquatic mammals ?

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Receptor sites for neurotransmitters are present on

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Out of ‘X’ pairs of ribs in humans only ‘Y’ pairs are true ribs. Select the option that correctly represents values of X and Y and provides their explanation :

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An important characteristic that Hemichordates share with Chordates is :

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Which of the following statements is correct?

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Capacitation occurs in :

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The DNA fragments separated on an agarose gel can be visualised after staining with :

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MALT constitutes about ________ percent of the lymphoid tissue in human body

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The process of separation and purification of expressed protein before marketing is called :

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The function of copper ions in copper releasing IUD's is :

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