JRF NET Life Sciences June 2018 Model Question Paper 18 NET Life Sciences Old Papers NET Life Sciences Mock Test Welcome to Life Sciences CSIR Mock Test 18 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. Major regulatory step in the cholesterol biosynthesis pathway is: Mevalonate kinase HMG Coenzyme Mevalonate-5-pyrophosphate decarboxylase Farnesyl Diphosphate synthase2. Consider the following DNA sequence 5’ATGGGCATAGACGATATGGTAG3’. If due to frame-shift mutation there is insertion of G between 3rd and 4th position. Consider a reverse mutation occur in same mutated sequence. Which reverse mutation will have minimum effect in protein change? Deletion of a nucleotide between 11th and 12th position Insertion of three nucleotide between 5th and 6th position Insertion of nucleotide between 5th and 6th position Deletion of a nucleotide between 5th and 6th position3. A tryptophan auxotroph in corn showed 50 times more accumulation of IAA than the normal. Probable explanation for this is: IAA is probably not inhibited by feedback mechanism IAA was not oxidized De-conjugation of ester linked IAA does not take place There may be some other precursors for IAA synthesis4. The concentration of which of the following ion is responsible for the resting potential of the plasma membrane? Na+ gradient K+ gradient Ca2+ gradient Mg2+ gradient5. The most important cation source in the cell lumen is: Ca2+ K+ Na+ Mg2+6. Which of the following statement is correct regarding meiotic cell division? There is one round of replication and two round of cell division There is two round of relocation and two round of cell division There is two round of replication and one round of cell division There is one round of replication and one round of cell division7. The possible combination of gametes which can be formed by the genotype AaBbCcDdEeFfGg are: 128 16 32 648. With time the molecular distance between organisms increases during evolution due to: Random drift Natural selection Neutral mutations Point mutations9. Which of the following monochromatic lights are more suitable for plant growth? Red, blue, far-red Red, far-red Red, green Blue, far red10. Major cause of evolution of genes and proteins is: Gene duplication and divergence Chromosomal aberrations Point mutation Sexual reproduction11. Glucose transporter in the membrane is an example for: Gated ion channel Passive transporter Ligand-gated channel Active transporter12. In a normal cell, the phosphatidylserine residues are located at the: Outer leaflet of plasma membrane Cannot be predicted, it varies according to cell types Even distributed in both inner and outer leaves of plasma membrane Inner leaflet of plasma membrane13. Oxygen and carbon dioxide pass through the plasma membrane by: Diffusion Active transport Secondary active transport Through transporter proteins14. The pitcher plant Nepenthes would be expected to have: NO3- specific ion channel NH3 transporter ATP powered pumps for NO3- H+ - NO3- symporters15. What is the average resting potential of a mammalian neuron? -70 mV + 60 mV +50 mV -50 mVYou 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 Mock Test, CSIR NET Model Questions, Mock (Practice) Tests and tagged NET Life Sciences Mock Test, NET Life Sciences Model Questions, NET Life Sciences Practice Questions.