How many different proteins does the ribosome consist of?
1. 20 2. 80
3. 60 4. 40

Subtopic:  Translation |
 63%
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Match List I with List II 
List I List II
A. Oxidative decarboxylation I. Citrate synthase
B. Glycolysis II. Pyruvate dehydrogenase
C. Oxidative phosphorylation III. Electron transport system
D. Tricarboxylic acid cycle IV. EMP pathway 
Choose the correct answer from the options given below:
Options: A B C D
1. II IV III I
2. III IV II I
3. II IV I III
4. III I II IV
Subtopic:  Aerobic Respiration | Kreb's Cycle |
 73%
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Match List I with List II 
List I
(Interaction)
List II 
(Species A and B)
A. Mutualism I. +(A), O(B)
B. Commensalism II. –(A), O(B)
C. Amensalism III. +(A), –(B)
D. Parasitism  IV +(A), +(B)

Choose the correct answer from the options given below:
Options: A B C D
1. III I IV II
2. IV II I II
3. IV I II III
4. IV III I II
Subtopic:  Population Interactions: Competition | Population Interactions: Predation | Population Interactions: Parasitism | Population Interactions: Commensalism, Protocooperation & Mutualism |
 90%
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Given below are two statements:
Statement I: Gause's 'Competitive Exclusion Principle' states that two closely related species competing for the same resources cannot co-exist indefinitely and competitively inferior one will be eliminated eventually.
Statement II: In general, carnivores are more adversely affected by competition than herbivores.

In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic:  Population Interactions: Competition |
 68%
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NEET - 2023
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Identify the correct statements:
A: Lenticels are the lens-shaped openings permitting the exchange of gases.
B: Bark formed early in the season is called hard bark.
C: Bark is a technical term that refers to all tissues exterior to vascular cambium.
D: Bark refers to periderm and secondary phloem.
E: Phellogen is single- layered in thickness.
Choose the correct answer from the options given below:
1. B and C only 2. B, C and E only
3. A and D only  4. A, B and D only
Subtopic:  Activity of Cork Cambium |
 69%
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NEET - 2023
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Main steps in the formation of Recombinant DNA are given below. Arrange these steps in a correct sequence.
A. Insertion of recombinant DNA into the host cell.
B. Cutting of DNA at specific location by restriction enzyme.
C. Isolation of desired DNA fragment.
D. Amplification of gene of interest using PCR.
Choose the correct answer from the options given below:
1. B, D, A, C 2. B, C, D, A
3. C, A, B, D 4. C, B, D, A
Subtopic:  Process of Biotech |
From NCERT
NEET - 2023
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Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): In gymnosperms, the pollen grains are released from the microsporangium and carried by air currents.
Reason (R): Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed.
In the light of the above statements, choose the correct answer from the options given below:
1. (A) is False, (R) is True.
2. Both (A) and (R) are True and (R) correctly explains (A).
3. Both (A) and (R) are True and (R) does not correctly explain (A).
4. (A) is True, (R) is False.
Subtopic:  Gymnosperms |
 68%
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NEET - 2023
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Which one of the following statements is not correct?
 
1. The amount of some toxic substances of industrial wastewater increases in the organisms at successive trophic levels. 
2. The micro-organisms involved in biodegradation of organic matter in a sewage-polluted water body consume aquatic organisms.
3. Algal blooms caused by excess of organic matter in water improve water quality and promote fisheries.
4. Water hyacinth grows abundantly in eutrophic water bodies and lead to an imbalance in the ecosystem dynamics of the water body.
Subtopic:  Water Pollution |
 64%
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NEET - 2023
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Which of the following statements are correct about Klinefelter's Syndrome?
A. This disorder was first described by Langdon Down (1866).
B. Such an individual has overall masculine development. However, the feminine development is also expressed. 
C. The affected individual is short statured.
D. Physical, psychomotor and mental development is retarded.
E. Such individuals are sterile. 
Choose the correct answer from the options given below:
1. A and E only  2. A and B only 
3. C and D only  4. B and E only
Subtopic:  Non - Disjunction & Aneuploidy | Sex Aneuploidy - Turner & Klinefelter Syndrome |
 83%
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Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): A flower is defined as a modified shoot wherein the shoot apical meristem changes to floral meristem.
Reason (R): Internode of the shoot gets condensed to produce different floral appendages laterally at successive nodes instead of leaves.
In the light of the above statements, choose the correct answer from the options given below:
1. (A) is False but (R) is True.
2. Both (A) and (R) are True and (R) is the correct explanation of (A).
3. Both (A) and (R) are True but (R) is not the correct explanation of (A).
4. (A) is True but (R) is False.
Subtopic:  Inflorescence |
 67%
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NEET - 2023
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