HP Science Practice Set 37 | Interactive MCQ Mock Test

1. Which molecular feature is characteristic of diffuse midline glioma?

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A. IDH1 mutation B. ATRX mutation C. 1p/19q codeletion D. H3 K27M mutation

2. The organ of Corti is located in the ______.

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A. tympanic membrane B. semicircular canal C. cochlea D. middle ear

3. The organ of Corti is located in the ______.

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A. tympanic membrane B. semicircular canal C. cochlea D. middle ear

4. The organ of Corti is located in the ______.

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A. tympanic membrane B. semicircular canal C. cochlea D. middle ear

5. The organ of Corti is located in the ______.

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A. tympanic membrane B. semicircular canal C. cochlea D. middle ear

6. Which epigenetic change is commonly seen in the early stages of tumorigenesis?

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A. Promoter hypermethylation leading to gene silencing B. RNA editing altering transcript sequence C. Gene amplification increasing copy number D. Histone acetylation increasing gene expression

7. Which epigenetic change is commonly seen in the early stages of tumorigenesis?

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A. Promoter hypermethylation leading to gene silencing B. RNA editing altering transcript sequence C. Gene amplification increasing copy number D. Histone acetylation increasing gene expression

8. Which epigenetic change is commonly seen in the early stages of tumorigenesis?

Science 📄 Staff Nurse (2026)

A. Promoter hypermethylation leading to gene silencing B. RNA editing altering transcript sequence C. Gene amplification increasing copy number D. Histone acetylation increasing gene expression

9. Which epigenetic change is commonly seen in the early stages of tumorigenesis?

Science 📄 Staff Nurse (2026)

A. Promoter hypermethylation leading to gene silencing B. RNA editing altering transcript sequence C. Gene amplification increasing copy number D. Histone acetylation increasing gene expression

10. Which of the following best describes the function and composition of intercalated discs in cardiac muscle?

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A. They are specialized connective tissues that connect skeletal muscles to bone or tendons consisting only of fibrous collagen. B. They act as inhibitory junctions that prevent excessive contraction of the heart muscle and restrict stroke volume and cardiac output. C. They are junctions between cardiac cells containing gap junctions for electrical coupling and desmosomes for mechanical anchoring. D. They are gap junctions found in smooth muscle that allow for slow, wave-like contractions and peristaltic movements.

11. Which of the following best describes the function and composition of intercalated discs in cardiac muscle?

Science 📄 Staff Nurse (2026)

A. They are specialized connective tissues that connect skeletal muscles to bone or tendons consisting only of fibrous collagen. B. They act as inhibitory junctions that prevent excessive contraction of the heart muscle and restrict stroke volume and cardiac output. C. They are junctions between cardiac cells containing gap junctions for electrical coupling and desmosomes for mechanical anchoring. D. They are gap junctions found in smooth muscle that allow for slow, wave-like contractions and peristaltic movements.

12. Which of the following best describes the function and composition of intercalated discs in cardiac muscle?

Science 📄 Staff Nurse (2026)

A. They are specialized connective tissues that connect skeletal muscles to bone or tendons consisting only of fibrous collagen. B. They act as inhibitory junctions that prevent excessive contraction of the heart muscle and restrict stroke volume and cardiac output. C. They are junctions between cardiac cells containing gap junctions for electrical coupling and desmosomes for mechanical anchoring. D. They are gap junctions found in smooth muscle that allow for slow, wave-like contractions and peristaltic movements.

13. Which of the following best describes the function and composition of intercalated discs in cardiac muscle?

Science 📄 Staff Nurse (2026)

A. They are specialized connective tissues that connect skeletal muscles to bone or tendons consisting only of fibrous collagen. B. They act as inhibitory junctions that prevent excessive contraction of the heart muscle and restrict stroke volume and cardiac output. C. They are junctions between cardiac cells containing gap junctions for electrical coupling and desmosomes for mechanical anchoring. D. They are gap junctions found in smooth muscle that allow for slow, wave-like contractions and peristaltic movements.

14. Kala-azar is transmitted by which arthropod?

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A. Flea on rodents B. Mosquito larvae C. Mite on cattle D. Sand fly female

15. Kala-azar is transmitted by which arthropod?

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A. Flea on rodents B. Mosquito larvae C. Mite on cattle D. Sand fly female

16. Kala-azar is transmitted by which arthropod?

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A. Flea on rodents B. Mosquito larvae C. Mite on cattle D. Sand fly female

17. Kala-azar is transmitted by which arthropod?

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A. Flea on rodents B. Mosquito larvae C. Mite on cattle D. Sand fly female

18. Which of the following is mainly responsible for breaking-down of complex organic substances into simple inorganic substances that bring about natural replenishment of the soil?

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A. Environmental oxygen B. Sunlight C. Daily change in environmental temperature D. Microorganisms

19. Which of the following is mainly responsible for breaking-down of complex organic substances into simple inorganic substances that bring about natural replenishment of the soil?

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A. Environmental oxygen B. Sunlight C. Daily change in environmental temperature D. Microorganisms

20. Which of the following is mainly responsible for breaking-down of complex organic substances into simple inorganic substances that bring about natural replenishment of the soil?

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A. Environmental oxygen B. Sunlight C. Daily change in environmental temperature D. Microorganisms

21. Which of the following is mainly responsible for breaking-down of complex organic substances into simple inorganic substances that bring about natural replenishment of the soil?

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A. Environmental oxygen B. Sunlight C. Daily change in environmental temperature D. Microorganisms

22. Which of the following is true regarding saccular aneurysms?

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A. They involve only a portion of the vessel wall circumference B. They involve the entire circumference of the vessel C. They arise only from congenital defects D. They are always smaller than fusiform aneurysms

23. Which of the following is true regarding saccular aneurysms?

Science 📄 Staff Nurse (2026)

A. They involve only a portion of the vessel wall circumference B. They involve the entire circumference of the vessel C. They arise only from congenital defects D. They are always smaller than fusiform aneurysms

24. Which of the following is true regarding saccular aneurysms?

Science 📄 Staff Nurse (2026)

A. They involve only a portion of the vessel wall circumference B. They involve the entire circumference of the vessel C. They arise only from congenital defects D. They are always smaller than fusiform aneurysms

25. Which of the following is true regarding saccular aneurysms?

Science 📄 Staff Nurse (2026)

A. They involve only a portion of the vessel wall circumference B. They involve the entire circumference of the vessel C. They arise only from congenital defects D. They are always smaller than fusiform aneurysms

Himachal Pradesh Science - Practice Mock Test Set 37

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