NET Life Science Model Question Paper 20 (June 2018) NET Life Sciences Old Papers NET Life Sciences Mock Test Welcome to Life Sciences CSIR Mock Test 20 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. Which of the following DO NOT bring variation in population? Random drift Recombination Natural selection Non-random drift2. Among the following which microorganism is involved in nitrogen fixation with wood trees? Azospirillum Frankia Azobacter Rhizobium3. Which mineral ion play important role in functioning of photosystem II? Magnesium Manganese Iron Molybdenum4. Among closely laying cells the signal are communicated through: Cell membranes Gap junctions Hormones Neurotransmitters5. In signal transduction trimetric G protein with α, β and γ is involved. Which subunit will activate adenylate cyclase? Beta subunit Alpha subunit All three Gamma submit6. After meiosis, the 20% gametes are recombinant for two genes. The distance between two genes will be: 40 cM 05 cM 10 cM 20 cM7. If the repressor of lac operon binds to the operator, it will lead to: Differential gene expression Switch off transcription Enhanced transcription Switch on transcription8. Ecological adaptations in which some organisms are favored due to more energy investment on their reproductive rate while other on basis of channelizing energy for homeostasis. Such a selection strategies are termed as: Logistic and exponential selection K-selection and r-selection Kin and group selection Directional and disruptive selection9. The primary acceptor of CO2 in photosynthesis is: Ribose Ribulose 1,5-bisphosphate 3-phosphoglycerate Ribulose 5-P10. The possible type of gametes formed from genotype AABbCCDdEe will be: 16 4 32 811. In TCA cycle malonate is competitive inhibitor which structurally similar to: Succinate α-ketoglutarate Oxaloacetate Fumarate12. In chromosomes, the 30 nm fibres during metaphase attach to: Nuclear lamina Nuclear matrix Centromere Scaffold13. Receptors for the signaling for steroid hormones are located at: Intracellularly No receptor Plasma membrane Organelle membrane14. If activator binds to repressor, it will prevent Binding of repressor to promoter Transcription Binding of RNA polymerase to promoter Binding of repressor to operator15. Genes between related organism exhibit high variation. The variations would maximally occur in: Exons Polyadenylation site Promoters IntronsYou 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… CSIR JRF NETICMR JRFDBT BET JRFGATE - BTGATE XL Bioche.GATE XL Micro.GATE XL BotanyGATE XL ZoologyGATE XL Food Tec.GATE EY EcologyIIT JAM - BTIIT JAM - BLGS - BiologySET - BotanySET - ZoologyNEET Get our Updates on CSIR NET Life Sciences 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… No related posts. Posted in CSIR / ICMR / DBT / ICAR, CSIR NET Model Questions, NET Life Sciences Model Questions and tagged CSIR JRF NET June 2018, NET Life Sciences Mock Test, NET Life Sciences Model Questions, NET Life Sciences Practice Questions.