FREE TEST CEE 4 INDIAN ( NEET/AIMPT ) QB BIOLOGY - MOST PROBABLE FOR CEE There are 1000s of Questions from past Exam shuffled Every Time you take the Test in a group of 80 questions of biology as per the CEE pattern 1 / 80 Category: AIPMT 2016 The coconut water from tender coconut represents: Fleshy mesocarp Endocarp Free nuclear proembryo Free nuclear endosperm 2 / 80 Category: NEET 2018 The two functional groups characteristic of sugars are Carbonyl and methyl Carbonyl and hydroxyl Hydroxyl and methyl Carbonyl and phosphate 3 / 80 Category: NEET 2016 Which of the following guards the opening of hepatopancreatic duct into the duodenum? Ileocaecal valve Sphincter of Oddi Semilunar valve Pyloric sphincter73 4 / 80 Category: AIPMT 2016 Which one of the following statements is not true? Tapetum helps in the dehiscence of anther Stored pollen in liquid nitrogen can be used in the crop breeding programmes Pollen grains of many species cause severe allergies Exine of pollen grains is made up of sporopollenin 5 / 80 Category: NEET 2022 Which of the following statements is not true? Flippers of penguins and dolphins are a pair of homologous organs Homology indicates common ancestry Sweet potato and potato is an example of analogy Analogous structures are a result of convergent evolution 6 / 80 Category: NEET 2016 Lack of relaxation between successive stimuli in sustained muscle contraction is known as: Spasm Tonus Fatigue Tetanus 7 / 80 Category: NEET 2015 Which one of the following is not applicable to RNA? 5' phosphoryl and 3' hydroxyl ends Chargaff's rule Heterocyclic nitrogenous bases Complementary base pairing 8 / 80 Category: AIPMT 2016 In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks selfcells, then it leads to : Allergic response Active immunity Auto-immune disease Graft rejection 9 / 80 Category: NEET 2020 In relation to Gross primary productivity and Net primary productivity of an ecosystem, which one of the following statements is correct? Gross primary productivity is always more than net primary productivity There is no relationship between Gross primary productivity and Net primary productivity Gross primary productivity is always less than net primary productivity Gross primary productivity and Net primary productivity are one and same 10 / 80 Category: NEET 2015 Human urine is usually acidic because: Hydrogen ions are actively secreted into the filtrate. The sodium transporter exchanges one hydrogen ion for each sodium ion, in peritubular capillaries. Potassium and sodium exchange generates acidity Excreted plasma proteins are acidic 11 / 80 Category: NEET 2021 DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as dark red bands bright blue bands yellow bands bright orange bands 12 / 80 Category: NEET 2021 Identify the correct statement. RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria Split gene arrangement is characteristic of prokaryotes The coding strand in a transcription unit is copied to an mRNA In capping, methyl guanosine triphosphate is added to the 3' end of hnRNA 13 / 80 Category: NEET 2016 Which of the following is not required for any of the techniques of DNA fingerprinting available at present? Polymerase chain reaction DNA – DNA hybridization Zinc finger analysis Restriction enzymes 14 / 80 Category: NEET 2022 Addition of more solutes in a given solution will : not affect the water potential at all raise its water potential lower its water potential make its water potential zero 15 / 80 Category: NEET 2018 Secondary xylem and phloem in dicot stem are produced by Vascular cambium Apical meristems Phellogen Axillary meristems 16 / 80 Category: NEET 2017 Alexander Von Humbolt described for the first time : Laws of limiting factor Ecological Biodiversity Species are relationship Population Growth equation 17 / 80 Category: NEET 2021 The first stable product of CO2 fixation in Sorghum is Oxaloacetic acid phosphopglyceric acid succinic acid Pyruvic acid 18 / 80 Category: NEET 2015 During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning prevented by : Carotene Xanthophyll Cytochrome Leghaemoglobin 19 / 80 Category: NEET 2021 During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out : DNA Histones polysaccharides RNA 20 / 80 Category: NEET 2018 Natality refers to Death rate Number of individuals entering a habitat Number of individuals leaving the habitat Birth rate 21 / 80 Category: AIPMT 2016 Cotyledon of maize grain is called : coleoptile plumule scutellum coleorhiza 22 / 80 Category: NEET 2022 “Girdling Experiment” was performed by Plant Physiologists to identify the plant tissue through which: osmosis is observed water is transported food is transported for both water and food transportation 23 / 80 Category: NEET 2020 Identify the wrong statement with regard to Restriction Enzymes. They are useful in genetic engineering. They cut the strand of DNA at palindromic sites. Each restriction enzyme functions by inspecting the length of a DNA sequence Sticky ends can be joined by using DNA ligases. 24 / 80 Category: NEET 2023 Upon exposure to UV radiation, DNA stained with ethidium bromide will show Bright blue colour Bright yellow color bright orange color bright red color 25 / 80 Category: NEET 2015 Which of the following diseases is caused by a protozoan? Syphilis Influenza Blastomycosis Babesiosis 26 / 80 Category: AIPMT 2015 Which one of the following statements is not true? Pollen grains are rich in nutrients, and they are used in the forms of tablets and syrups The flowers pollinated by flies and bats secrete foul odour to attract them Honey is made by bees by digesting pollen collected from flowers Pollen grains of some plants cause severe allergies and bronchial afflictions in some people Page|7 27 / 80 Category: NEET 2021 Which of the following statements is correct ? Fusion of protoplasms between two motile on non-motile gametes is called plasmogamy Fusion of two cells is called Karyogamy Some of the organisms can fix atmospheric nitrogen in specialized cells called sheath cells Organisms that depend on living plants are called saprophytes 28 / 80 Category: NEET 2022 Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver ________ ml of O2 to the tissues. 2 ml 10 ml 4 ml 5 ml 29 / 80 Category: NEET 2023 Axile placentation is observed in China rose, Beans and Lupin China rose, Petunia and Lemon Tomato, Dianthus and Pea Mustard, Cucumber and Primrose 30 / 80 Category: NEET 2017 Adult human RBCs are enucleate. Which of the following statement is / are not most appropriate explanation for this feature? a. They do not need to reproduce b. They are somatic cells c. They do not metabolize D. All their internal space is available for oxygen transport b and c Only a only d a, c and D 31 / 80 Category: NEET 2022 Identify the incorrect statement related to Pollination : Flowers produce foul odours to attract flies and beetles to get pollinated Moths and butterflies are the most dominant pollinating agents among insects Pollination by wind is more common amongst abiotic pollination Pollination by water is quite rare in flowering plants 32 / 80 Category: NEET 2018 Which of these statements is incorrect? Enzymes of TCA cycle are present in mitochondrial matrix Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms Glycolysis occurs in cytosol Oxidative phosphorylation takes place in outer mitochondrial membrane 33 / 80 Category: NEET 2021 Which stage of meiotic prophase shows terminalisation of chiasmata as its distinctive feature? Leptotene Zygotene Diakinesis Pachytene 34 / 80 Category: NEET 2018 The experimental proof for semiconservative replication of DNA was first shown in a Plant Bacterium Virus Fungus 35 / 80 Category: AIPMT 2016 Specialised epidermal cells surrounding the guard cells are called : Lenticels Subsidiary cells Bulliform cells Complementary cells 36 / 80 Category: AIPMT 2016 In a testcross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates : The two genes are located on two different chromosomes. Both of the characters are controlled by more than one gene. The two genes are linked and present on the same chromosome. Chromosomes failed to separate during meiosis. 37 / 80 Category: NEET 2016 Reduction in pH of blood will: Release bicarbonate ions by the liver Reduce the rate of heart beat Reduce the blood supply to the brain Decrease the affinity of hemoglobin with oxygen 38 / 80 Category: NEET 2020 Identify the correct statement with reference to human digestive system. Serosa is the innermost layer of the alimentary canal Vermiform appendix arises from duodenum IIeum is a highly coiled part IIeum opens into small intestine 39 / 80 Category: NEET 2021 The production of gametes by the parents, formation of zygotes, the F1 and F2 plants, can be understood from a diagram called : net square bullet square punch square punnette square 40 / 80 Category: NEET 2023 Which of the following statements is correct ? Biomagnification refers to increase in concentration of the toxicant at successive trophic levels. Eutrophication refers to increase in domestic sewage and waste water in lakes Presence of large amount of nutrients in water restricts 'Algal Bloom' Algal Bloom decreases fish mortality 41 / 80 Category: NEET 2020 Experimental verification of the chromosomal theory of inheritance was done by Mendel Morgan Boveri Sutton 42 / 80 Category: NEET 2017 Capacitation occurs in Rete testis Epididymis Vas deferens Female Reproductive tract 43 / 80 Category: AIPMT 2016 Which of the following guards the opening of hepatopancreatic duct into the duodenum ? Ileocaecal valve Sphincter of Oddi Semilunar valve Pyloric sphincter 44 / 80 Category: NEET 2022 Tegmina in cockroach, arises from prothorax and mesothorax prothorax metathorax mesothorax 45 / 80 Category: NEET 2019 Which of the following statements is correct? Cornea consists of dense connective tissue of elastin and can repair itself. Cornea is an external, transparent and protective proteinacious covering of the eye-ball. Cornea is convex, transparent layer which is highly vascularised. Cornea consists of dense matrix of collagen and is the most sensitive portion the eye. 46 / 80 Category: NEET 2022 Select the incorrect statement with reference to mitosis: All the chromosomes lie at the equator at metaphase Splitting of centromere occurs at anaphase Chromosomes decondense at telophase Spindle fibres attach to centromere of chromosomes 47 / 80 Category: NEET 2018 Which of the following statements is correct? Horsetails are gymnosperms Stems are usually unbranched in both Cycas and Cedrus Selaginella is heterosporous, while Salvinia is homosporous Ovules are not enclosed by ovary wall in gymnosperms 48 / 80 Category: NEET 2015 Pick up the wrong statement : Some fungi are edible Protista have photosynthetic and heterotrophic modes of nutrition Cell wall is absent in Animalia Nuclear membrane is present in Monera 49 / 80 Category: NEET 2021 Succus entericus is referred to as: Intestinal juice chyme Gastric juice Pancreatic juice 50 / 80 Category: AIPMT 2015 Male gametes are flagellated in: Ectocarpus Anabaena Polysiphonia Spirogyra 51 / 80 Category: NEET 2017 Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements. a. Vitamin A derivatives are formed from carotene b. The photopigments are embedded in the membrane discs of the inner segment c. Retinal is a derivative of Vitamin A. d. Retinal is a light absorbing part of all the visual photopigments Options : a and c a, c and d a and b b, c and d 52 / 80 Category: NEET 2020 According to Robert May, the global species diversity is about 7 million 20 million 50 million 1.5 million 53 / 80 Category: NEET 2017 What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis ? Positive charged fragment moves to farther end. Negatively charged fragments do not move The larger the fragment size, the farther it moves The smaller the fragment size, the farther it moves 54 / 80 Category: NEET 2022 Nitrogenous waste is excreted in the form of pellet or paste by Salamandra Hippocampus Ornithorhynchus pavo 55 / 80 Category: AIPMT 2016 Asthma may be attributed to : inflammation of the trachea bacterial infection of the lungs allergic reaction of the mast cells in the lungs accumulation of fluid in the lungs 56 / 80 Category: NEET 2015 Roots play insignificant role in absorption of water in : Sunflower Pea Pistia Wheat 57 / 80 Category: NEET 2016 In which of the following, all three are macronutrients? Nitrogen, nickel, phosphorus Iron, copper, molybdenum Molybdenum, magnesium, manganese Boron, zinc, manganese 58 / 80 Category: NEET 2022 Read the following statements about the vascular bundles : (a) In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii. (b) Conjoint closed vascular bundles do not possess cambium (c) In open vascular bundles, cambium is present in between xylem and phloem (d) The vascular bundles of dicotyledonous stem possess endarch protoxylem (e) In monocotyledonous root, usually there are more than six xylem bundles present Choose the correct answer from the options given below : D and E only All B , A only A,C and E only 59 / 80 Category: NEET 2017 The pivot joing between atlas and axis is a type of saddle joint fibrous joint Cartilaginous joint Synovial joint 60 / 80 Category: NEET 2019 Select the incorrect statement. Inbreeding helps in accumulation of superior genes and elimination of undesirable genes Inbreeding is essential to evolve purelines in any animal. Inbreeding selects harmful recessive genes that reduce fertility and productivity Inbreeding increases homozygosity 61 / 80 Category: NEET 2017 Spliceosomes are not found in cells of Animals Bacteria Fungi Plants 62 / 80 Category: NEET 2022 The entire fleet of buses in Delhi were converted to CNG from diesel. In reference to this, which one of the following statements is false? It is cheaper than diesel CNG burns more efficiently than diesel The same diesel engine is used in CNG buses making the cost of conversion low It cannot be adulterated like diesel 63 / 80 Category: NEET 2019 Extrusion of second polar body from egg nucleus occurs : after fertilization simultaneously with first cleavage after entry of sperm but before fertilization before entry of sperm into ovum 64 / 80 Category: NEET 2015 Which one of the following hormones is not involved in sugar metabolism? Insulin Aldosterone Glucagon Cortisone 65 / 80 Category: NEET 2016 Which of the following features is not present in the Phylum – Arthropoda? Parapodia Chitinous exoskeleton Jointed appendages Metameric segmentation 66 / 80 Category: NEET 2020 Which of the following is correct about viroids? They have free RNA without protein coat They have DNA with protein coat They have free DNA without protein coat They have RNA with protein coat 67 / 80 Category: NEET 2023 Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the characteristics specific to family. Fabaceae but not found in Solanaceae or Liliaceae. Epiphyllous and Dithecous anthers Diadelphous and Dithecous anthers Monoadelphous and Monothecous anthers Polyadelphous and epipetalous stamens 68 / 80 Category: NEET 2021 If Adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it? T : 30 ; G : 20 ; C : 20 T : 20 ; G : 30 ; C : 20 T : 20 ; G : 25 ; C : 25 T : 20 ; G : 20 ; C : 30 69 / 80 Category: NEET 2018 Offsets are produced by Parthenocarpy Parthenogenesis Mitotic divisions Meiotic divisions 70 / 80 Category: NEET 2016 The taq polymerase enzyme is obtained from: Pseudomonas putida Thermus aquaticus Bacillus subtilis Thiobacillus ferroxidans 71 / 80 Category: AIPMT 2015 Vascular bundles in monocotyledons are considered closed because: Cambium is absent A bundle sheath surrounds each bundle Xylem is surrounded all around by phloem There are no vessels with perforations 72 / 80 Category: NEET 2015 In mammalian eye, the ‘fovea’ is the center of the visual field, where : Only rods are present High density of cones occur, but has no rods The optic nerve leaves the eye More rods than cones are found. 73 / 80 Category: NEET 2022 Which of the following are not the effects of Parathyroid hormone? (a) Stimulates the process of bone resorption (b) Decreases Ca2+ level in blood (c) Reabsorption of Ca2+ by renal tubules (d) Decreases the absorption of Ca2+ from digested food ( e) Increases metabolism of carbohydrates . Choose the most appropriate answer from the options given below: )a (and )e (only (b) and (c) only (b), (d) and (e) only (a) and (c) only 74 / 80 Category: AIPMT 2015 True nucleus is absent in: Vaucheria Mucor Vovox Anabaena 75 / 80 Category: NEET 2021 Which of the following is not an objective of Biofortification in crops? Improve resistance to diseases Improve micronutrient and mineral content Improve vitamin content Improve protein content 76 / 80 Category: NEET 2021 In the equation GPP – R = NPP R represents : Radiant energy( environmental factor respiration losses retardation energy 77 / 80 Category: NEET 2021 Diadelphous stamens are found in china rose and citrus citrus pea China rose 78 / 80 Category: NEET 2017 Which of the following components provides sticky character to the bacterial cell ? plasma membrane Glycocalyx Nuclear membrane Cell wall 79 / 80 Category: AIPMT 2016 Which of the following is not required for any of the techniques of DNA fingerprinting available at present ? Restriction enzymes Zinc finger analysis Polymerase chain reaction DNA–DNA hybridization 80 / 80 Category: AIPMT 2015 The chromosomes in which centromere is situated close to one end are: Telocentric Sub-metacentric Acrocentric Metacentric Your score is LinkedIn Facebook Twitter VKontakte
