GATE Biochemistry Mock Test 04 (GATE Life Sciences Exam 2018) GATE XL Model Questions GATE XL Previous Year Papers GATE XL (Biochemistry) Mock Test – 04 Welcome to GATE XL 2018 (GATE Biochemistry Mock Test 04) This Mock Test consists of 15 questions in MCQ format. At the end of the mock test, you have to click on the 'SUBMIT' button to see your Score and the Correct Answers. Please click on the 'NEXT' button to Start the Mock Test... 1. The fragmentation of DNA is a characteristic feature of: Chromosomal mutation Apoptosis Necrosis Cell division2. The precursor of bile salts, sex hormones and vitamin D is Ergosterol Campesterol Diosgenin Cholesterol3. Source of energy for Urey and Miller experiment was Electric spark ATP Lightning UV4. Which technique is best suited to study the expression level of a particular protein in different experimental groups? Western blotting RTPCR Southern blotting Northern blotting5. How many double bonds are present in arachidonic acid? 6 4 1 26. Insulin have: Primary and Secondary Structure Primary, Secondary and Tertiary structure Primary Structure only Primary, secondary, Tertiary and quaternary7. Which molecule is continuously transported from nucleus to cytoplasm DNA Ribosomes RNA Histone 8. The major cause of the damages of historical monuments like Taj Mahal is: Presence of Sulfuric acid in the environment Atmospheric Ozone NOx in the atmosphere Increased CO2 concentration9. If the Km of enzyme for substrate A is 1 x 10-6 and for substrate B is 4 x 10-8 , it means Enzyme has equal affinity for substrate A and substrate B Enzyme is non-specific Enzyme has more affinity for substrate A then substrate B Enzyme has more affinity for substrate B then substrate A10. Location of Glutamate synthase, an important enzyme in nitrogen assimilation is In Endoplasmic reticulum Only cytoplasm Only chloroplast Both in cytoplasm and chloroplast11. Complete photosynthetic apparatus of chloroplast necessary for the photosynthesis is coded by Nuclear and chloroplast gene together Nuclear gene alone Chloroplast and mitochondrial genes Chloroplast gene alone12. The major role of 2,3 BPG formed during glycolysis in RBC is for hemoglobin is Decreasing affinity for CO2 Increasing affinity for oxygen Increasing affinity for CO2 Decreasing affinity for oxygen13. The order of reaction catalyzed by enzyme at low substrate concentration is Pseudo first order Zero order First order Second order 14. The bond stabilizing the primary structure of a protein: Covalent bonds and Hydrogen Bonds Covalent bonds Ionic bonds Hydrogen bonds15. How many carbon atoms are present in one cholesterol molecules? 19 27 30 17You have reached at the End of this Mock Test. Please Click 'SUBMIT' button to see your Score and the Correct Answers... More Online Mock Tests… Please follow the links below… GATE XL Bioche.GATE XL Micro.GATE XL BotanyGATE XL ZoologyGATE XL Food Tec.GATE EY EcologyCSIR JRF NETICMR JRFDBT BET JRFGATE - BTIIT JAM - BTIIT JAM - BLGS - BiologySET - BotanySET - ZoologyNEET Get our Updates on GATE XL Papers in your E-mail Inbox We will not spam your account… Enter your e-mail address Don’t forget to Activate your Subscription…. Please See Your E-Mail… Browse more in Easy Biology Class… Lecture NotesBiology PPTVideo TutorialsBiology MCQQuestion BankDifference betweenPractical AidsMock Tests (MCQ)Biology Exams If you like this post, Please COMMENT . . . . (below ↓) Please Share with your Friends, Relatives, Students and Colleagues… Related posts: GATE XL Biochemistry Free Online Mock Test 01 (GATE 2018 Practice Questions) GATE XL 2018 Life Sciences – Botany Mock Test 01 GATE XL 2018 Life Sciences – Botany Practice Questions (Mock Test 02) GATE XL 2018 Life Sciences – Microbiology Mock Test 01 GATE XL Microbiology Mock Test 02 (GATE XL 2018 Exam) GATE XL Microbiology Mock Test 03 (GATE XL 2018 Exam) Posted in Biochemistry, GATE Biochemistry Mock Test, GATE Life Sciences (XL), Mock (Practice) Tests and tagged GATE Biochemistry, GATE Biochemistry Mock Test, GATE Mock Test, GATE XL, GATE XL 2018.