NEET 2025

159 Questions • 180 Minutes • 2025

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Q81
From the statements given below choose the correct option: A. The eukaryotic ribosomes are 80S and prokaryotic ribosomes are 70S. B. Each ribosome has two sub-units. C. The two sub-units of 80S ribosome are 60S and 40S while that of 70S are 50S and 30S. D. The two sub-units of 80S ribosome are 60S and 20S and that of 70S are 50S and 20S. E. The two sub-units of 80S are 60S and 30S and that of 70S are 50S and 30S
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Q82
Which one of the following is an example of ex-situ conservation?
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Q83
Given below are two statements: Statement I: The primary source of energy in an ecosystem is solar energy. Statement II: The rate of production of organic matter during photosynthesis in an ecosystem is called net primary productivity (NPP). In the light of the above statements, choose the most appropriate answer from the options given below:
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Q84
Match List-I with List-II. [table] List-I | List-II ; A. Emphysema | I. Rapid spasms in muscle due to low Ca$^{++}$ in body fluid ; B. Angina Pectoris | II. Damaged alveolar walls and decreased respiratory surface ; C. Glomerulonephritis | III. Acute chest pain when not enough oxygen is reaching to heart muscle ; D. Tetany | IV. Inflammation of glomeruli of kidney [/table] Choose the correct answer from the options given below:
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Q85
Given below are two statement: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Both wind and water pollinated flowers are not very colourful and do not produce nectar. Reason (R): The flowers produce enormous amount of pollen grains in wind and water pollinated flowers. In the light of the above statements, choose the correct answer from the options given below:
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Q86
Which of the following is an example of non—distilled alcoholic beverage produced by yeast?
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Q87
Given below are two statements: Statement I: In a floral formula $\oplus$ stands for zygomorphic nature of the flower, and $\underline{G}$ stands for inferior ovary. Statement II: In a floral formula $\oplus$ stands for actinomorphic nature of the flower and $\underline{G}$ stands for superior ovary. In the light of the above statements, choose the most appropriate answer from the options given below:
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Q88
Streptokinase produced by bacterium Streptococcus is used for
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Q89
Which chromosome in the human genome has the highest number of genes?
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Q90
Which of the following statement is correct about location of the male frog copulatory pad?
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Q91
Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants?
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Q92
While trying to find out the characteristic of a newly found animal, a researcher did the histology of adult animal and observed a cavity with presence of mesodermal tissue towards the body wall but no mesodermal tissue was observed towards the alimentary canal. What could be the possible coelome of that animal?
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Q93
Match List-I with List-II. [table] List-I | List-II ; A. Head | I. Enzymes ; B. Middle piece | II. Sperm motility ; C. Acrosome | III. Energy ; D. Tail | IV. Genetic material [/table] Choose the correct answer from the options given below:
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Q94
Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallus stage B. Meiosis in spore mother cells C. Fertilisation D. Formation of archegonia and antheridia in gametophyte. E. Transfer of antherozoids to the archegonia in presence of water. Choose the correct answer from the options given below:
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Q95
Cardiac activities of the heart are regulated by: A. Nodal tissue B. A special neural centre in the medulla oblongata C. Adrenal medullary hormones D. Adrenal cortical hormones Choose the correct answer from the options given below:
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Q96
Which of following organisms cannot fix nitrogen? A. Azotobacter B. Oscillatoria C. Anabaena D. Volvox E. Nostoc Choose the correct answer from the options given below:
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Q97
Given below are two statements: Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA. Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence. In the light of the above statements, choose the most appropriate answer from the options given below:
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Q98
Which of the following genetically engineered organisms was used by Eli Lilly to prepare human insulin?
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Q99
Name the class of enzyme that usually catalyze the following reaction: S – G + S$^{\#}$ → S + S$^{\#}$ – G Where, G → a group other than hydrogen S → a substrate S$^{\#}$ → another substrate
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Q100
Find the statement that is NOT correct with regard to the structure of monocot stem.
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Paper Info
  • Exam: NEET
  • Year: 2025
  • Questions: 159
  • Duration: 180 mins
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