A certain plant homozygous for yellow seeds and red flowers was crossed with a plant homozygous for green seeds and white flowers. The F1 plants had yellow seeds and pink flowers. The F1 plants were selfed to get F2 progeny. Assuming independent assortment of the two characters, how many phenotypic categories are expected for these characters in the F2 generation?
1.
9
2.
16
3.
4
4.
6
Subtopic: Dihybrid Cross: General Consideration |
Level 3: 35%-60%
NEET - 2023
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During which stages of mitosis and meiosis, respectively, does the centromere of each chromosome split?
| 1. | Metaphase, Metaphase II | 2. | Prophase, Telophase I |
| 3. | Telophase, Anaphase I | 4. | Anaphase, Anaphase II |
Subtopic: Cell Division: Mitosis (Karyokinesis) | Cell Cycle: Meiosis II |
89%
Level 1: 80%+
NEET - 2023
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Which of the following statements is not correct?
| 1. | Phase of cell elongation of plant cells is characterized by increased vacuolation. |
| 2. | Cells in the meristematic phase of growth exhibit abundant plasmodesmatal connections |
| 3. | Plant growth is generally determinate |
| 4. | Plant growth is measurable |
Subtopic: Growth |
80%
Level 1: 80%+
NEET - 2023
Hints
Match List - I with List - II
Choose the correct answer from the options given below:
| Type of flower | Example | ||
| (A) | Zygomorphic | (I) | Mustard |
| (B) | Hypogynous | (II) | Plum |
| (C) | Perigynous | (III) | Cassia |
| (D) | Epigynous | (IV) | Cucumber |
Choose the correct answer from the options given below:
| Options: | (A) | (B) | (C) | (D) |
| 1. | I | II | IV | III |
| 2. | I | II | III | IV |
| 3. | IV | I | III | II |
| 4. | III | I | II | IV |
Subtopic: Flower & Parts of Flower |
87%
Level 1: 80%+
NEET - 2023
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Given below are two statements:
In light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is correct but Statement II is correct
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
| I: | The process of translocation through phloem is unidirectional but through xylem, it is bidirectional |
| II: | The most readily mobilized elements are phosphorus, sulphur, nitrogen and potassium. |
1. Statement I is correct but Statement II is correct
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: Phloem Translocation | Photosynthesis Transpiration Compromise & Mineral Translocation |
56%
Level 3: 35%-60%
NEET - 2023
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Which of the following sexually transmitted infections are completely curable?
| 1. | HIV infection and Trichomoniasis |
| 2. | Syphilis and Trichomoniasis |
| 3. | Hepatitis-B and Genital herpes |
| 4. | Genital Herpes and Genital warts |
Subtopic: Sexually Transmitted Infections |
87%
Level 1: 80%+
NEET - 2023
Hints
Match List-I with List-II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (A) | Typhoid | (I) | Protozoan |
| (B) | Elephantiasis | (II) | Salmonella |
| (C) | Ringworm | (III) | Aschelminthes |
| (D) | Malaria | (IV) | Microsporum |
| Options: | (A) | (B) | (C) | (D) |
| 1. | (I) | (IV) | (III) | (II) |
| 2. | (I) | (III) | (IV) | (II) |
| 3. | (II) | (III) | (IV) | (I) |
| 4. | (II) | (IV) | (III) | (I) |
Subtopic: Typhoid Fever | Common Cold & Malaria Introduction | Treatment & Life Cycle of Malaria | Ascariasis & Filariasis | Fungal Infection & Concept of Immunity |
86%
Level 1: 80%+
NEET - 2023
Hints
Which of the following is not a secondary metabolite?
| 1. | Curcumin | 2. | Morphine |
| 3. | Anthocyanin | 4. | Lecithin |
Subtopic: Primary & Secondary Metabolites |
71%
Level 2: 60%+
NEET - 2023
Hints
Arrange the sequence of different hormones for their role during gametogenesis:
Choose the correct answer from the options given below:
| A. | Gonadotropin LH stimulates synthesis and secretion of Androgen |
| B. | Gonadotropin releasing hormone from hypothalamus |
| C. | Androgen stimulates spermatogenesis |
| D. | Gonadotropin FSH helps in the process of spermiogenesis |
| E. | Gonadotropins from anterior pituitary gland |
Choose the correct answer from the options given below:
| 1. | (E), (A), (D), (B), (C) | 2. | (C), (A), (D), (E), (B) |
| 3. | (B), (E), (A), (C), (D) | 4. | (D), (B), (A), (C), (E) |
Subtopic: Seminiferous Tubules & Spermatogenesis | Spermiogenesis/Sperm Structure/Hormonal Regulation |
80%
Level 1: 80%+
NEET - 2023
Hints
Subtopic: Taxonomy 3: From Family to Classification of Some Organisms |
86%
Level 1: 80%+
NEET - 2023
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