Complete question paper, answer key and solutions of NEET Entrance exam 2021 is available in PDF format for free download.
National Testing Agency (NTA) conducted National Medical Entrance- NEET examination on 12th September 2021 for 16 lakh aspirants. The examination was conducted in offline mode in 220 cities in various parts of the country. You can use this paper as the model paper for upcoming NEET examinations.
NEET 2021- Sample Questions and Answers.
| No | Question | Answer |
| 1 | When gene targeting involving gene amplification is attempted in an individual’s tissue to treat disease, it is known as | Gene Therapy |
| 2 | During the purification process for recombination DNA technology, addition of chilled ethanol precipitates out: | DNA |
| 3 | A typical angiosperm embryo sac at maturity is | 8-nucleate and 7-celled |
| 4 | Which of the following algae produce Carrageen? | Red Algae. |
| 5 | Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as | Heterosporous |
| 6 | Mutations in plant cells can be induced by: | Gamma rays |
| 7 | Which of the following is a correct sequence of steps in a PCR (Polymerase Chain Reaction) ? | Denaturation, Annealing, Extension |
| 8 | During the purification process for rocombinant DNA technology, addition of chilled ethanol precipitates out: | DNA |
| 9 | The plant hormone used to destroy weeds in a field is | 2, 4-D |
| 10 | Diadelphous stamens are found in: | Pea |
| 11 | Which of the following are not secondary metabolites in plants? | Amino acids, glucose |
| 12 | Gemmae are present in | Some liverworts |
| 13 | The amount of nutrients such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is referred as: | Standing state |
| 14 | The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which, during pollination, brings genetically different types of pollen grains to stigma, is: | Xenogamy |
| 15 | DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as: | Bright orange bands |
| 16 | Which of the following stages of meiosis involves division of centromere? | Anaphase II |
| 17 | The production of gametes by the parents, formation of zygotes, the F, and F; plants can be understood from a diagram called | Punnott square |
| 18 | Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called | Plasticity |
| 19 | Amensalism can be represented as | Species A ( – ) ; Species B (0) |
| 20 | In spite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival? | Resource partitioning |
| 21 | Which of the following algae contains mannitol as reserve food material? | Ectocarpus |
| 22 | The site of perception of light in plants during photoperiodism is: | Leaf |
| 23 | The first stable product of CO2 Fixation in sorghum is: | Oxaloacetic acid |
| 24 | DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as: | Repetitive DNA |
| 25 | Now a days it is possible to detect the mutated gene causing cancer by allowing radioactive probe to hybridise its complementary DNA in a clone of cells, followed by its detection using autoradiography because: | mutated gene does not appear on a Photographic film as the probe has no complementarity with it. |
| 26 | In some members of which of the following pairs of families, pollen grains retain their viability for months after release ? | Rosaccac; Leguminosae |
| 27 | What is the role of RNA polymerase III in the process of transcription in eukaryotes? | Transcribes tRNA, 5s rRNA and snRNA |
| 28 | The centriole undergoes duplication during: | S-phase |
| 29 | Which of the following RNAs is not required synthesis of protein? | siRNA |
| 30 | A specific recognition sequence identified by endonucleases to make cuts at specific positions within the DNA is: | Palindromic Nucleotide sequences |
| 31 | Chronic auto immune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle is called as: | Myasthenia gravis |
| 32 | Which one of the following belongs to the family Muscidae? | House Fly |
| 33 | The organelles that are included in the endomembrane system are | Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles |
| 34 | Which one of the following is an example of Hormone releasing IUD? | LNG 20 |
| 35 | Succus ontoricus is referred to as: | Intestinal juice |
| 36 | Which of the following is not an objective of Biofortification in crops ? | Improve resistance to diseases |
| 37 | The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at G( phase is 8, what would be the number of chromosomes after S phase? | 8 |
| 38 | If Adenine makes 30% of the DNA molecule, what will bo the percentage of Thymine, Guanine and Cytosine in it? | T: 30; G: 20; C : 20 |
| 39 | Which stage of meiotic prophase shows terminalisation of chiasmata as its distinctive feature? | Diakinesis |
| 40 | Dobson units are used to measure thickness of: | Ozone |
| 41 | Sphincter of oddi is present at | Junction of hepato-pancreatic duct and duodenum |
| 42 | In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be diseased? | 25% |
| 43 | Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET) ? | Cow is administered hormone having LH like activity for super ovulation |
| 44 | Which of the following secretes the hormone, relaxin, during the later phase of pregnancy? | Corpus luteum |
| 45 | Which of these is not an important component of initiation of parturition in humans? | Release of Prolactin |
| 46 | The structure of beryllium chloride in solid state and vapour phase, are: | Chain and dimer, respectively |
| 47 | Zr (Z = 40) and Hf (Z = 72) have similar atomic and ionic radii because of: | lanthanoid contraction |
| 48 | A particular station of All India Radio, New Delhi, broadcasts on a frequency of 1,368 KHz (kilohertz). The wavelength of the electromagnetic radiation emitted by the transmitter is: [Speed of light, c = 3×108ms-1] | 219.3 m |
| 49 | An organic compound contains 78% (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [Atomic wt. of C is 12, H is 1] | CH3 |
| 50 | Ethylenediaminetetraacetate (EDTA) ion is | Hexadentate ligand with four “O” and two “N” donor atoms |
| 51 | Among the following alkaline earth metal halides, one which is covalent and soluble in organic solvents is: | Beryllium chloride |
| 52 | The right option for the statement “Tyndall effect is exhibited by” is: | Starch solution |
| 53 | Dihedral angle of least stable conformer of ethane is | 00 |
NEET 2021- Video Solutions and Question Paper Discussion
See Complete question paper discussion of NEET 2021 from the video below
| No | NEET 2021 Answer Key |
| 1 | NEET 2021 Question Paper & Key for all subjects |
3 Comments
Thanks for the question
Solutions are really helpful… Thank you sir
Thank you for the question and key