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Nitrates and phosphates flowing from agricultural farms into water bodies are a significant cause of:
1.Eutrophication2.Humification
3.Mineralisation4.Stratification

Subtopic:  Water Pollution |
 64%
Level 2: 60%+
NEET - 2023
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 Match List-I with List-II
List-I 
(Type of cross)		 List-II 
(Phenotypic ratio)
(A) Monohybrid cross (I) 1:1
(B) Dihybrid cross (II) 1:2:1
(C) Incomplete dominance (III) 3:1
(D) Test cross (IV) 9:3:3:1
Choose the correct answer from the options given below:
Options: (A) (B) (C) (D)
1. III IV II I
2. II IV III I
3. II III IV I
4. IV III I II
Subtopic:  Monohybrid Cross: Further Understanding | Dihybrid Cross: General Consideration | Dihybrid Cross: Details | Dominance Deviation from Mendel: 1 | Dominance Deviation from Mendel: 2 |
 84%
Level 1: 80%+
NEET - 2023
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How many times decarboxylation occurs during each TCA cycle?
1.Thrice2.Many
3.Once4.Twice
Subtopic:  Kreb's Cycle |
 73%
Level 2: 60%+
NEET - 2023
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The dissolution of synaptonemal complex occurs during:
1.Pachytene2.Diplotene
3.Diakinesis4.Leptotene
Subtopic:  Cell Cycle: Meiosis I |
 80%
Level 1: 80%+
NEET - 2023
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Identify the correct statements regarding Mass flow hypothesis.
A: Mass flow is faster than diffusion.
B: Mass flow is the result of pressure difference between the end points.
C: Different substances involved in mass flow move at different paces.
D: Mass flow can result through either a positive or a negative hydrostatic pressure gradient.
Choose the correct answer from the options given below:
1. (A), (C), (D) only 2. (B), (C), (D) only
3. (A), (B), (C) only 4. (A), (B), (D) only
Subtopic:  The Pressure Flow or Mass Flow Hypothesis |
Level 3: 35%-60%
NEET - 2023
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Doubling of the number of chromosomes can be achieved by disrupting mitotic cell division soon after:
1. Anaphase 2. Telophase
3. Prophase 4. Metaphase
Subtopic:  Cell Division: Mitosis (Karyokinesis) |
Level 3: 35%-60%
NEET - 2023
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Given below are two statements :
Statement I: RuBisCO is the most abundant enzyme in the world.
Statement II:  Photorespiration does not occur in C4 plants.
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is correct but Statement II is incorrect
2. Statement I is incorrect but Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Subtopic:  Photorespiration |
 85%
Level 1: 80%+
NEET - 2023
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In 'rivet popper hypothesis', Paul Ehrlich compared the rivets in an airplane to
1.species within a genus2.genetic diversity
3.ecosystem4.genera within a family
Subtopic:  Importance of Biodiversity |
 67%
Level 2: 60%+
NEET - 2023
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In a pea flower, five petals are arranged in a specialized manner with one posterior, two lateral and two anterior. These are named as___________, ____________ and ________ respectively.
1. Keel, Wings and standard
2. Vexillum, Keel and standard
3. Keel, Standard and Carina
4. Standard, Wings and Keel
Subtopic:  Flower & Parts of Flower |
 75%
Level 2: 60%+
NEET - 2023
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In which of the following sets of families, the pollen grain are viable for months?
1. Solanaceae, Poaceae and Liliaceae
2. Brassicaceae, Liliaceae and Poaceae
3. Rosaceae, Liliaceae and Poaceae
4. Leguminosae, Solanaceae and Rosaceae
Subtopic:  Stamen: Microsporangium | Stamen: Male Gametophyte |
 84%
Level 1: 80%+
NEET - 2023
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