Recent questions tagged neet

A man and a women, who do not show any apparent signs of a certain inherited disease, have seven children (2 daughter and 5 sons). Three of the sons suffer from the given disease but none of the daughters are affected. Which of the following mode of inheritance do you suggest for this disease

asked Jul 24, 2018 by pady_1

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A women with 47 chromosomes due to three copies of chromosome 21 is characterized by -

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parkinson's disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter -

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In which one pair both the plants can be vegetatively propagated by leaf pieces -

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Which one of the following pairs in mismatched-

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AIDS is caused by HIV that principally infects

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Chlorophyll in chloroplasts is located in -

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Damage to thymus in a child may lead to

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The main organelle involved in modification and routing of newly synthesized proteins to their destinations is -

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During transcription holoenzyme RNA polymerase binds to a DNA sequence and the DNA assumes a saddle like structure at the point. What is the sequence called -

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At what stage of the cell cycle are histone proteins synthesized in a eukaryotic cell -

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One of the examples of the action of the autonomous nervous system is -

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Photosynthesis in $C_4$ plants is relatively less limited by atmospheric $CO_2$ levels because

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Which of the following is the relatively most accurate method for dating of fossils -

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Which of the following is not a hereditary disease -

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In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues -

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There exists a close association between the alga and the fungus within a lichen. The fungus -

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According to widely accepted "fluid mosaic model" cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements are incorrect -

asked Jul 24, 2018 by pady_1

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Prolonged liberal irrigation of agricultural fields is likely to create the problem of -

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Centromere is required for -

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Protein synthesis in an animal cell occurs -

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Which of the following unicellular organism has a macronucleus for trophic function and one or more micronuclei for reproduction -

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Which group of three of the following five statements (a-e) contain is all the three correct statements regarding beri-beri - (a) A crippling disease prevalent among the native population of sub-Saharan Africa (b) A deficiency disease caused by lack of thiamine (vitamin $B_1$) (c) A nutritional disorder in infants and young children when the diet is persistently deficient in essential protein (d) Occurs in those countries where the staple diet is polished rice (e) The symptoms are pain from neuritis, paralysis, muscle wasting, progressive oedema, mental deterioration and finally heart failure

asked Jul 24, 2018 by pady_1

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Top-shaped multiciliate male gametes, and the mature seed which bears only one embryo with two cotyledons, are characteristic features of -

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Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by -

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The name of Norman Borlaug is associated with-

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Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution -

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Auxospores and hormocysts are formed respectively, by -

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Identify the correctly matched pair -

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Which of the following characters is not typical of the class Mammalia -

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Which of the following is not used for disinfection of drinking water -

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Grey crescent is the area -

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Secretin and cholecystokinin are digestive hormones. They are secreted in -

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Bacillus thuringiensis (Bt) strains have been used for designing novel -

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As compared to a $C_3$-plant, how many additional molecules of ATP are needed for net production of one molecule of hexose sugar by $C_4$-plants -

asked Jul 24, 2018 by pady_1

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A student wishes to study the cell structure under a light microscope having 10X eyepiece and 45X objective. He should illuminate the object by which one of the following colours of light so as get the best possible resolution -

asked Jul 24, 2018 by pady_1

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Which one of the following makes use of RNA as a template to synthesize DNA -

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Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cell of the following. Which of the cells are least likely to be replaced by new cell

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An acromian process is characteristically found in the -

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Through which cell of the embryo sac, does the pollen tube enter the embryo sac-

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The deficiencies of micronutrients, not only affects growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both photosynthetic and mitochondrial electron transport -

asked Jul 24, 2018 by pady_1

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E. coli cells with a mutated z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because -

asked Jul 24, 2018 by pady_1

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Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these -

asked Jul 24, 2018 by pady_1

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Which of the following is the simplest amino acid -

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The correct order of acid strength is -

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$H_2 S$ gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is because-

asked Jul 24, 2018 by pady_1

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Which of the following is the electron deficient molecule -

asked Jul 24, 2018 by pady_1

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4.5g of aluminium (at. mass 27 amu) is deposited at cathode from $Al^{3+}$ solution by a certain quantity of electric charge. The volume of hydrogen produced at STP from $H^+$ions in solution by the same quantity of electric charge will be -

asked Jul 24, 2018 by pady_1

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A nuclide of an alkaline earth metal undergoes radioactive decay by emission of the $\alpha$-particles is succession. The group of the periodic table to which the resulting daughter element would belong is :-

asked Jul 24, 2018 by pady_1

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In a set of reactions acetic acid yielded a product D

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