NEET 2019

175 Questions • 180 Minutes • 2019

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Q61
Which of the following contraceptive methods do involve a role of hormone ?
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Q62
Drug called 'Heroin' is synthesized by :
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Q63
In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place ?
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Q64
Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by :
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Q65
Which of the following statements is correct ?
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Q66
Which of the following ecological pyramids is generally inverted ?
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Q67
Consider the following statements : (A) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group. (B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme. Select the correct option.
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Q68
Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder causing wheezing due to :
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Q69
Which one of the following statements regarding post-fertilization development in flowering plants is incorrect ?
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Q70
Phloem in gymnosperms lacks :
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Q71
It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?
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Q72
Persistent nucellus in the seed is known as :
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Q73
Cells in $G_0$ phase:
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Q74
Match Column - I with Column - II. [table] Column-I | Column-II ; (a) Saprophyte | (i) Symbiotic association of fungi with plant roots ; (b) Parasite | (ii) Decomposition of dead organic materials ; (c) Lichens | (iii) Living on living plants or animals ; (d) Mycorrhiza | (iv) Symbiotic association of algae and fungi [/table] Choose the correct answer from the options given below :
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Q75
Which would be the heart rate of a person if the cardiac output is 5L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?
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Q76
What triggers activation of protoxin to active Bt toxin of $Bacillus\ thuringiensis$ in boll worm?
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Q77
The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in :
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Q78
Which of the statements given below is not true about formation of Annual Rings in trees?
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Q79
What is the fate of the male gametes discharged in the synergid?
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Q80
Match the following genes of the Lac operon with their respective products. [table] Column-I | Column-II ; (a) i gene | (i) $\beta$-galactosidase ; (b) z gene | (ii) Permease ; (c) a gene | (iii) Repressor ; (d) y gene | (iv) Transacetylase [/table] Select the correct option.
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Paper Info
  • Exam: NEET
  • Year: 2019
  • Questions: 175
  • Duration: 180 mins
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