GATE XL 2018 Biochemistry Free Online Mock Test 03 GATE XL Model Questions GATE XL Previous Year Papers GATE XL (Biochemistry) Mock Test – 03 Welcome to GATE XL 2018 (GATE Biochemistry Mock Test 03) 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 most probable amino acid occurring at bends and turns of a polypeptide chain is: Phenylalanine Tryptophan Leucine Proline 2. The activity of Receptor Tyrosine Kinase (RTK) is regulated primarily through: Acetylation Dephosphorylation Phosphorylation Methylation 3. Maximum ionic interaction would be observed In presence of polar solvent In presence of mixture of water and alcohol Almost equal in all kinds of solvents When ionic compound is out of the solvents4. Among the following which is responsible for nerve action potential? Influx of Na+ and K+ ions Out-flux of Na+ and K+ ions Influx of Na+ and out-flux of K+ ions Out-flux of Na+ and influx of K+ ions5. Covalent bond formation between two atoms takes place by Transfer of electron from one atom to other One side sharing of electrons Electron sharing by both interacting atoms Affinity between two atoms6. Which statement is true about nucleosome model of chromatin in eukaryotes It consist of two unit each of H2A, H2B, H3, H4 and 200 bp of DNA It consist of histone and non-histone proteins It consist of one unit each of H2A, H2B, H3, H4 and 200 bp of DNA It consist of H1 and 200 bp DNA7. UV-B induced damages of DNA by the formation of pyrimidine dimers are repaired by the photolyase enzyme on activation by: Blue light IR light UV-C light Green light8. The main force in membrane resealing of ruptured biomembrane in aqueous environment is: Force between protein and lipids Ionic interactions between membrane lipids Hydrophobic forces between membrane lipids Covalent forces between membrane lipids9. In salt tolerant plants the excess salt is transported to the vacuole by: Na‐Cl‐ symporter Na+H+ Antiporter Na‐K+ Pump Na‐H+ Pump10. Sodium lauryl sulphate(SDS) disrupts protein by changing the Secondary, tertiary and quaternary structures proteins Primary structure of proteins Secondary and tertiary structures proteins Primary and secondary structures of proteins11. Among the following hypothalamus peptide hormones which is the smallest? GnRH CRH TRH GH-RH12. If a cell has ‘c’ as the DNA content of cell and ‘n’ as the number of chromosomes, then just immediately before the cell division in case of mitosis what would be value of ‘c’ and ‘n’ 2c and 4n 4c and 4n 2c and 2n 4c and 2n13. DCMU inhibits photosynthesis at photosystem during: QB → Cytbf6 Cyt-bf6 → PC QA → QB phe → QA 14. Lipid phase transition and movement can be studied using: ESR Phase contrast microscopy NMR Electron microscopy15. Fat soluble vitamins involved in bone formation and blood clotting are Vit B and Vit D Vit D and Vit B Vit A and Vit K Vit D and Vit K You 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.