Tiêu đề K-2817 (Life Science).pdf ✅

Test Paper : II Test Subject : LIFE SCIENCES Test Subject Code : K-2817 Test Booklet Serial No. : _______________________ OMR Sheet No. : _________________________________ Roll No. (Figures as per admission card) Name & Signature of Invigilator/s Signature : _________________________________ Name : _________________________________ Paper : II Subject : LIFE SCIENCES Time : 1 Hour 15 Minutes Maximum Marks : 100 Number of Pages in this Booklet : 8 Number of Questions in this Booklet : 50 K-2817 1 /P.T.O. Instructions for the Candidates 1. Write your roll number in the space provided on the top of this page. 2. This paper consists of fifty multiple-choice type of questions. 3. At the commencement of examination, the question booklet will be given to you. In the first 5 minutes, you are requested to open the booklet and compulsorily examine it as below : (i) To have access to the Question Booklet, tear off the paper seal on the edge of the cover page. Do not accept a booklet without sticker seal or open booklet. (ii) Tally the number of pages and number of questions in the booklet with the information printed on the cover page. Faulty booklets due to pages/questions missing or duplicate or not in serial order or any other discrepancy should be got replaced immediately by a correct booklet from the invigilator within the period of 5 minutes. Afterwards, neither the Question Booklet will be replaced nor any extra time will be given. 4. Each item has four alternative responses marked (A), (B), (C) and (D). You have to darken the circle as indicated below on the correct response against each item. Example :A B C D where (C) is the correct response. 5. Your responses to the questions are to be indicated in the OMR Sheet kept inside the Paper I Booklet only. If you mark at any place other than in the circles in the OMR Sheet, it will not be evaluated. 6. Read the instructions given in OMR carefully. 7. Rough Work is to be done in the end of this booklet. 8. If you write your name or put any mark on any part of the OMR Answer Sheet, except for the space allotted for the relevant entries, which may disclose your identity, you will render yourself liable to disqualification. 9. You have to return the test OMR Answer Sheet to the invigilators at the end of the examination compulsorily and must NOT carry it with you outside the Examination Hall. 10. You can take away question booklet and carbon copy of OMR Answer Sheet after the examination. 11. Use only Blue/Black Ball point pen. 12. Use of any calculator, Electronic gadgets or log table etc., is prohibited. 13. There is no negative marks for incorrect answers. 14. In case of any discrepancy found in the Kannada translation of a question booklet the question in English version shall be taken as final. 1. ! ! " # $% 2. &'( !) *+ ,-./ 0 '1 "2 "2 3 % 3. $ ( 4 5' 6 7 '1 " ( " 2 8 52 % 5- 92 ( 0" 0 ( 0 ( 85 5 : $ ;4 ( 5 % (i) '1 " ( 2 ' 15 (51 8 7) ( < = ")$# $.>(, ? <@ 50 ( " A ($ B 3 . (ii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
Total Number of Pages : 8 Paper II 2 K-2817 1. A process by which reproductive isolation occurs among groups of individuals within a continuous inbreeding population is called (A) Sympatric speciation (B) Allopatric speciation (C) Parapatric speciation (D) Quantum speciation 2. In which of the following techniques there is no electrophoretic step ? (A) Dot Blot (B) Western Blot (C) Northern Blot (D) Southern Blot 3. Bicoid mRNA is localised in the _________ region of Drosophila egg. (A) Anterior (B) Posterior (C) Dorsal (D) Ventral 4. Which of the following is an example of mobile genetic element in Humans ? (A) P-element (B) IS-element (C) LINES (D) ARS 5. The requirement of long day length or low temperature treatment for flowering can be substituted by (A) Gibberellins (B) Coumarins (C) 2, 4 – D (D) Morphactins LIFE SCIENCES Paper – II Note : This paper contains fifty (50) objective type questions. Each question carries two (2) marks. All questions are compulsory. 6. Why do fats give more energy than carbohydrates ? (A) Fats have carboxyl group (B) Fats are more reduced than carbohydrates (C) Fats are larger than carbohydrates (D) Fats have more number of bonds than carbohydrates 7. Choose the right arrangement in the increasing order of energy. (A) erg < calorie < joule (B) joule < calorie < erg (C) erg < joule < calorie (D) calorie < erg < joule 8. All are sequence alignment tools except (A) Rasmol (B) BLAST (C) FASTA (D) Clustal w 9. When you eat vegetables, you are a (A) Tertiary consumer (B) Secondary consumer (C) Primary consumer (D) Primary producer
Total Number of Pages : 8 K-2817 3 Paper II 10. Extraction of metals from ore bearing rocks is known as (A) Biofiltration (B) Biotransformation (C) Bioleaching (D) Bioremediation 11. Membrane around the vacuole is (A) Tonoplast (B) Amyloplast (C) Cytoplast (D) Elioplast 12. Passer domesticus (Linnaeus, 1758) where Linnaeus in parentheses indicates that a) Genus of the species has been changed b) Linnaeus is the second authority c) Linnaeus is the first authority d) Linnaeus is not the authority (A) a) and b) (B) b) and c) (C) c) and d) (D) a) and c) 13. Leghemoglobin in legume root nodules regulates (A) Oxygen supply (B) Nodule growth (C) Dinitrogenase activity (D) Expression of ‘nif’ genes 14. Identify the correct statement with reference to “Apoptosis”. (A) It does not lead to the elimination of cells (B) Its a process of programmed cell death that occurs in multicellular organisms (C) The process of apoptosis is not blocked in cancer cells (D) It occurs only in animal cells 15. The set of hormones produced by the Pancreas is (A) Insulin and secretin (B) Insulin and gastrin (C) Insulin and glucagon (D) Glucagon and cholecystokinin 16. Identify the correct statement with reference to “Commensalism”. (A) Both organisms benefit from each other (B) One is harmed and the other is unaffected (C) One is benefited from the other without affecting it (D) One is benefited while the other is harmed 17. Epinephrine is made from (A) Tryptophan (B) Threonine (C) Tyrosine (D) Aspartic acid
Total Number of Pages : 8 Paper II 4 K-2817 18. Arrest of replication fork at ‘Ter’ site requires the action of (A) RNA polymerase (B) DNA polymerase (C) Tus protein (D) Ori “C” protein 19. Heterosis is (A) Appearance of spontaneous mutations (B) Induction of mutations (C) Mixture of two or more traits (D) Superiority of hybrids over their parents 20. The size of human mitochondrial DNA is (A) 30 Kb (B) 10 Mb (C) 16 Kb (D) 20 Kb 21. Which one of the following is dominated by evergreen trees ? (A) Tropical rain forest (B) Thundra (C) Deciduous forest (D) Shrub jungle 22. Which experiment proved that DNA strands are antiparallel ? (A) Messelson and Stahl experiment (B) Okazaki fragments (C) Nearest neighbour base frequency analysis (D) Hershey and Chase experiment 23. The sphere of relatively nondescript cells that result from a rapid series of mitotic divisions of the zygote is called a (A) Determination (B) Gastrulation (C) Blastula (D) Morphogenesis 24. Toll-like receptors are involved in (A) Antigen processing of B-cells (B) Maturation of B-cells (C) Antigen processing by Dendritic cells (D) Damage associated molecular pattern recognition 25. In Poisson’s distribution (A) Mean is greater than variance (B) Mean is less than variance (C) Mean is equal to variance (D) Mean is greater than standard deviation 26. ‘CITES’ is (A) Conservation of International Trade in Endangered Species of wildlife fauna and flora (B) Convention on International Trade in Endangered Species of wildlife fauna and flora (C) Conservation of Internal Trade in Ecology of fauna and flora (D) Convention on International Trend in Endangered Species of fauna and flora