Solved Paper 2022 1
NEET 2022
SOLVED PAPER
SECTION - A (BOTANY) (c) Statement I is correct but Statement II is incorrect.
(d) Statement I is incorrect but Statement II is correct.
1. The process of translation of mRNA to proteins begins as
soon as 7. Which one of the following produces nitrogen fixing
(a) the small subunit of ribosome encounter mRNA nodules on the roots of Alnus?
(b) the larger subunit of ribosome encounters mRNA (a) Rhizobium (b) Frankia
(c) both the subunits join together to bind with mRNA (c) Rhodospirillum (d) Beijerinckia
(d) the tRNA is activated and the larger subunit of 8. DNA polymorphism forms the basis of
ribosome encounters mRNA. (a) genetic mapping
2. The device which can remove particulate matter present in (b) DNA fingerprinting
the exhaust from a thermal power plant is (c) both genetic mapping and DNA fingerprinting
(a) STP (b) incinerator (d) translation.
(c) electrostatic precipitator (d) catalytic converter. 9. Which one of the following plants does not show plasticity?
3. Which of the following is incorrectly matched? (a) Cotton (b) Coriander
(a) Ectocarpus - Fucoxanthin (c) Buttercup (d) Maize
(b) Ulothrix - Mannitol 10. What is the net gain of ATP when each molecule of glucose
(c) Porphyra - Floridean starch is converted to two molecules of pyruvic acid?
(d) Volvox - Starch (a) Four (b) Six
4. Hydrocolloid carrageen is obtained from (c) Two (d) Eight
(a) Chlorophyceae and Phaeophyceae 11. In old trees the greater part of secondary xylem is dark
(b) Phaeophyceae and Rhodophyceae brown and resistant to insect attack due to
(c) Rhodophyceae only (A) secretion of secondary metabolites and their deposition
(d) Phaeophyceae only. in the lumen of vessels
5. Which one of the following statements cannot be connected (B) deposition of organic compounds like tannins and
to predation? resins in the central layers of stem
(C) deposition of suberin and aromatic substances in the
(a) It helps in maintaining species diversity in a
outer layer of stem
community.
(D) deposition of tannins, gum, resin and aromatic
(b) It might lead to extinction of a species.
substances in the peripheral layers of stem
(c) Both the interacting species are negatively impacted.
(E) presence of parenchyma cells, functionally active
(d) It is necessitated by nature to maintain the ecological
xylem elements and essential oils
balance.
Choose the correct answer from the options given below.
6. Given below are two statements : (a) (A) and (B) only (b) (C) and (D) only
Statement I : The primary CO2 acceptor in C4 plants is (c) (D) and (E) only (d) (B) and (D) only
phosphoenol pyruvate and is found in the mesophyll cells. 12. The flowers are zygomorphic in
Statement II : Mesophyll cells of C4 plants lack RuBisCO (A) Mustard (B) Gulmohar
enzyme. (C) Cassia (D) Datura
In the light of the above statements, choose the correct (E) Chilly
answer from the options given below : Choose the correct answer from the options given below :
(a) Both Statement I and Statement II are correct. (a) (A), (B), (C) only (b) (B), (C) only
(b) Both Statement I and Statement II are incorrect. (c) (D), (E) only (d) (C), (D), (E) only
, 2 Biology
13. What amount of energy is released from glucose during (E) A typical nucleosome contains 400 bp of DNA helix.
lactic acid fermentation? Choose the correct answer from the option given below.
(a) Approximately 15% (b) More than 18% (a) (B), (D), (E) only (b) (A), (C), (D) only
(c) About 10% (d) Less than 7% (c) (B), (E) only (d) (A), (C), (E) only
14. The gaseous plant growth regulator is used in plants to 22. Match list-I with list-II.
(a) speed up the malting process List-I List-II
(b) promote root growth and root hair formation to (A) Manganese (i) Activates the enzyme
increase the absorption surface catalase
(c) help overcome apical dominance (B) Magnesium (ii) Required for
(d) kill dicotyledonous weeds in the fields. pollination
germination
15. Identify the incorrect statement related to pollination. (C) Boron (iii) Activates enzymes of
(a) Pollination by water is quite rare in flowering plants. respiration
(b) Pollination by wind is more common amongst abiotic (D) Iron (iv) Functions in splitting
pollination. of water during
(c) Flowers produce foul odours to attract flies and beetles photosynthesis
to get pollinated. Choose the correct answer from the options given below :
(d) Moths and butterflies are the most dominant (a) (A) – (iii), (B) – (iv), (C) – (i), (D) – (ii)
pollinating agents among insects. (b) (A) – (iv), (B) – (iii), (C) – (ii), (D) – (i)
(c) (A) – (iv), (B) – (i), (C) – (ii), (D) – (iii)
16. Habitat loss and fragmentation, over exploitation, alien
(d) (A) – (iii), (B) – (i), (C) – (ii), (D) – (iv)
species invasion and co-extinction are causes for
(a) population explosion 23. Given below are two statements : one is labelled as
(b) competition Assertion (A) and the other is labelled as Reason (R).
(c) biodiversity loss Assertion (A) : Polymerase chain reaction is used in DNA
(d) natality. amplification.
17. The appearance of recombination nodules on homologous Reason (R) : The ampicillin resistant gene is used as a
chromosomes during meiosis characterises selectable marker to check transformation.
(a) synaptonemal complex In the light of the above statements, choose the correct
(b) bivalent answer from the options given below.
(c) sites at which crossing over occurs (a) Both (A) and (R) are correct and (R) is the correct
(d) terminalisation. explantion of (A).
(b) Both (A) and (R) are correct but (R) is not the correct
18. Production of cucumber has increased manifold in recent explanation of (A).
years. Application of which of the following phytohormones (c) (A) is correct but (R) is not correct.
has resulted in this increased yield as the hormone is known (d) (A) is not correct but (R) is correct.
to produce female flowers in the plants
(a) ABA (b) gibberellin 24. Which one of the following never occurs during mitotic cell
(c) ethylene (d) cytokinin. division?
(a) Spindle fibres attach to kinetochores of chromosomes
19. Which of the following is not a method of ex situ (b) Movement of centrioles towards opposite poles
conservation? (c) Pairing of homologous chromosomes
(a) In vitro fertilisation (b) National parks (d) Coiling and condensation of the chromatids
(c) Micropropagation (d) Cryopreservation
25. Which of the following is not observed during apoplastic
20. Which one of the following statement is not true regarding
pathway?
gel electrophoresis technique?
(a) Movement of water occurs through intercellular
(a) The process of extraction of separated DNA strands
spaces and wall of the cells.
from gel is called elution. (b) The movement does not involve crossing of cell
(b) The separated DNA fragments are stained by using membrane.
ethidium bromide. (c) The movement is aided by cytoplasmic streaming.
(c) The presence of chromogenic substrate gives blue (d) Apoplast is continuous and does not provide any
coloured DNA bands on the gel. barrier to water movement.
(d) Bright orange coloured bands of DNA can be observed
in the gel when exposed to UV light. 26. Given below are two statements.
Statement I : Cleistogamous flowers are invariably
21. Read the following statements and choose correct autogamous.
statements. Statement II : Cleistogamy is disadvantageous as there is
(A) Euchromatin is loosely packed chromatin. no chance for cross pollination.
(B) Heterochromatin is transcriptionally active. In the light of the above statements, choose the correct
(C) Histone octamer is wrapped by negatively charged answer from the options given below :
DNA in nucleosome. (a) Both Statement I and Statement II are correct.
(D) Histones are rich in lysine and arginine . (b) Both Statement I and Statement II are incorrect.
NEET 2022
SOLVED PAPER
SECTION - A (BOTANY) (c) Statement I is correct but Statement II is incorrect.
(d) Statement I is incorrect but Statement II is correct.
1. The process of translation of mRNA to proteins begins as
soon as 7. Which one of the following produces nitrogen fixing
(a) the small subunit of ribosome encounter mRNA nodules on the roots of Alnus?
(b) the larger subunit of ribosome encounters mRNA (a) Rhizobium (b) Frankia
(c) both the subunits join together to bind with mRNA (c) Rhodospirillum (d) Beijerinckia
(d) the tRNA is activated and the larger subunit of 8. DNA polymorphism forms the basis of
ribosome encounters mRNA. (a) genetic mapping
2. The device which can remove particulate matter present in (b) DNA fingerprinting
the exhaust from a thermal power plant is (c) both genetic mapping and DNA fingerprinting
(a) STP (b) incinerator (d) translation.
(c) electrostatic precipitator (d) catalytic converter. 9. Which one of the following plants does not show plasticity?
3. Which of the following is incorrectly matched? (a) Cotton (b) Coriander
(a) Ectocarpus - Fucoxanthin (c) Buttercup (d) Maize
(b) Ulothrix - Mannitol 10. What is the net gain of ATP when each molecule of glucose
(c) Porphyra - Floridean starch is converted to two molecules of pyruvic acid?
(d) Volvox - Starch (a) Four (b) Six
4. Hydrocolloid carrageen is obtained from (c) Two (d) Eight
(a) Chlorophyceae and Phaeophyceae 11. In old trees the greater part of secondary xylem is dark
(b) Phaeophyceae and Rhodophyceae brown and resistant to insect attack due to
(c) Rhodophyceae only (A) secretion of secondary metabolites and their deposition
(d) Phaeophyceae only. in the lumen of vessels
5. Which one of the following statements cannot be connected (B) deposition of organic compounds like tannins and
to predation? resins in the central layers of stem
(C) deposition of suberin and aromatic substances in the
(a) It helps in maintaining species diversity in a
outer layer of stem
community.
(D) deposition of tannins, gum, resin and aromatic
(b) It might lead to extinction of a species.
substances in the peripheral layers of stem
(c) Both the interacting species are negatively impacted.
(E) presence of parenchyma cells, functionally active
(d) It is necessitated by nature to maintain the ecological
xylem elements and essential oils
balance.
Choose the correct answer from the options given below.
6. Given below are two statements : (a) (A) and (B) only (b) (C) and (D) only
Statement I : The primary CO2 acceptor in C4 plants is (c) (D) and (E) only (d) (B) and (D) only
phosphoenol pyruvate and is found in the mesophyll cells. 12. The flowers are zygomorphic in
Statement II : Mesophyll cells of C4 plants lack RuBisCO (A) Mustard (B) Gulmohar
enzyme. (C) Cassia (D) Datura
In the light of the above statements, choose the correct (E) Chilly
answer from the options given below : Choose the correct answer from the options given below :
(a) Both Statement I and Statement II are correct. (a) (A), (B), (C) only (b) (B), (C) only
(b) Both Statement I and Statement II are incorrect. (c) (D), (E) only (d) (C), (D), (E) only
, 2 Biology
13. What amount of energy is released from glucose during (E) A typical nucleosome contains 400 bp of DNA helix.
lactic acid fermentation? Choose the correct answer from the option given below.
(a) Approximately 15% (b) More than 18% (a) (B), (D), (E) only (b) (A), (C), (D) only
(c) About 10% (d) Less than 7% (c) (B), (E) only (d) (A), (C), (E) only
14. The gaseous plant growth regulator is used in plants to 22. Match list-I with list-II.
(a) speed up the malting process List-I List-II
(b) promote root growth and root hair formation to (A) Manganese (i) Activates the enzyme
increase the absorption surface catalase
(c) help overcome apical dominance (B) Magnesium (ii) Required for
(d) kill dicotyledonous weeds in the fields. pollination
germination
15. Identify the incorrect statement related to pollination. (C) Boron (iii) Activates enzymes of
(a) Pollination by water is quite rare in flowering plants. respiration
(b) Pollination by wind is more common amongst abiotic (D) Iron (iv) Functions in splitting
pollination. of water during
(c) Flowers produce foul odours to attract flies and beetles photosynthesis
to get pollinated. Choose the correct answer from the options given below :
(d) Moths and butterflies are the most dominant (a) (A) – (iii), (B) – (iv), (C) – (i), (D) – (ii)
pollinating agents among insects. (b) (A) – (iv), (B) – (iii), (C) – (ii), (D) – (i)
(c) (A) – (iv), (B) – (i), (C) – (ii), (D) – (iii)
16. Habitat loss and fragmentation, over exploitation, alien
(d) (A) – (iii), (B) – (i), (C) – (ii), (D) – (iv)
species invasion and co-extinction are causes for
(a) population explosion 23. Given below are two statements : one is labelled as
(b) competition Assertion (A) and the other is labelled as Reason (R).
(c) biodiversity loss Assertion (A) : Polymerase chain reaction is used in DNA
(d) natality. amplification.
17. The appearance of recombination nodules on homologous Reason (R) : The ampicillin resistant gene is used as a
chromosomes during meiosis characterises selectable marker to check transformation.
(a) synaptonemal complex In the light of the above statements, choose the correct
(b) bivalent answer from the options given below.
(c) sites at which crossing over occurs (a) Both (A) and (R) are correct and (R) is the correct
(d) terminalisation. explantion of (A).
(b) Both (A) and (R) are correct but (R) is not the correct
18. Production of cucumber has increased manifold in recent explanation of (A).
years. Application of which of the following phytohormones (c) (A) is correct but (R) is not correct.
has resulted in this increased yield as the hormone is known (d) (A) is not correct but (R) is correct.
to produce female flowers in the plants
(a) ABA (b) gibberellin 24. Which one of the following never occurs during mitotic cell
(c) ethylene (d) cytokinin. division?
(a) Spindle fibres attach to kinetochores of chromosomes
19. Which of the following is not a method of ex situ (b) Movement of centrioles towards opposite poles
conservation? (c) Pairing of homologous chromosomes
(a) In vitro fertilisation (b) National parks (d) Coiling and condensation of the chromatids
(c) Micropropagation (d) Cryopreservation
25. Which of the following is not observed during apoplastic
20. Which one of the following statement is not true regarding
pathway?
gel electrophoresis technique?
(a) Movement of water occurs through intercellular
(a) The process of extraction of separated DNA strands
spaces and wall of the cells.
from gel is called elution. (b) The movement does not involve crossing of cell
(b) The separated DNA fragments are stained by using membrane.
ethidium bromide. (c) The movement is aided by cytoplasmic streaming.
(c) The presence of chromogenic substrate gives blue (d) Apoplast is continuous and does not provide any
coloured DNA bands on the gel. barrier to water movement.
(d) Bright orange coloured bands of DNA can be observed
in the gel when exposed to UV light. 26. Given below are two statements.
Statement I : Cleistogamous flowers are invariably
21. Read the following statements and choose correct autogamous.
statements. Statement II : Cleistogamy is disadvantageous as there is
(A) Euchromatin is loosely packed chromatin. no chance for cross pollination.
(B) Heterochromatin is transcriptionally active. In the light of the above statements, choose the correct
(C) Histone octamer is wrapped by negatively charged answer from the options given below :
DNA in nucleosome. (a) Both Statement I and Statement II are correct.
(D) Histones are rich in lysine and arginine . (b) Both Statement I and Statement II are incorrect.
