NEET 2023

99 Questions • 180 Minutes • 2023

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Q1
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: The first stage of gametophyte in the life cycle of moss is protonema stage. Reason R: Protonema develops directly from spores produced in capsule. In the light of the above statements, choose the correct answer from the options given below:
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Q2
Identify the pair of heterosporous pteridophytes among the following:
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Q3
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.
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Q4
Axile placentation is observed in
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Q5
Given below are two statements: Statement I: Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body. Statement II: Exarch condition is the most common feature of the root system. In the light of the above statements, choose the correct answer from the options given below:
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Q6
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: Late wood has fewer xylary elements with narrow vessels. Reason R: Cambium is less active in winters. In the light of the above statements, choose the correct answer from the options given below:
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Q7
Cellulose does not form blue colour with Iodine because
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Q8
Among eukaryotes, replication of DNA takes place in
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Q9
Which of the following stages of meiosis involves division of centromere?
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Q10
The process of appearance of recombination nodules occurs at which sub stage of prophase I in meiosis?
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Q11
Movement and accumulation of ions across a membrane against their concentration gradient can be explained by
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Q12
Given below are two statements : Statement I: The forces generated by transpiration can lift a xylem-sized column of water over 130 meters height. Statement II: Transpiration cools leaf surfaces sometimes 10 to 15 degrees, by evaporative cooling. In the light of the above statements, choose the most appropriate answer from the options given below:
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Q13
Which micronutrient is required for splitting of water molecule during photosynthesis?
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Q14
How many ATP and NADPH, are required for the synthesis of one molecule of Glucose during Calvin cycle?
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Q15
The reaction centre in PS II has an absorption maxima at
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Q16
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: ATP is used at two steps in glycolysis. Reason R: First ATP is used in converting glucose into glucose-6-phosphate and second ATP is used in conversion of fructose-6- phosphate into fructose-1-6-diphosphate. In the light of the above statements, choose the correct answer from the options given below is true,
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Q17
Spraying of which of the following phytohormone on juvenile conifers helps in hastening the maturity period, that leads to early seed production?
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Q18
In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as:
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Q19
Which hormone promotes intemode/petiole elongation in deep water rice?
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Q20
Large, colourful, fragrant flowers with nectar are seen in:
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Paper Info
  • Exam: NEET
  • Year: 2023
  • Questions: 99
  • Duration: 180 mins
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