General Science - Biology MCQs

21. The brain and spinal cord are the main tissue components of which of the following tissues in the central nervous system?

[A] Nervous Tissue
[B] Epithelial Tissue
[C] Muscle Tissue
[D] Connective Tissues

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22. The least distance of distinct vision for a young adult with normal vision is __

[A] 25 m
[B] 20 m
[C] 25 cm
[D] 20 cm

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23. Which of the following is included in the large intestine?

[A] colon
[B] rectum
[C] anus
[D] All of the above

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24. The adrenal cortex secretes all except __

[A] Androgenic steroid
[B] Cortisol
[C] Relaxin
[D] Aldosterone

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25. Which of the following can cause hepatitis?

[A] an improperly functioning immune system
[B] alcohol and medicines
[C] viruses
[D] All of the above

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26. Which is the universally accepted law of inheritance?

[A] Law of Independent Assortment
[B] Law of Dominance
[C] Law of segregation
[D] None of these

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27. A rare way that a trait or disorder can be passed down through families is called which of the following?

[A] Sex-linked recessive
[B] Sex-linked dominant
[C] Autosomal dominant
[D] None of these

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28. A nitrogen-fixing bacterium that forms loose associations with the roots of crop plants is __.

[A] Azotobacter
[B] Bacillus polymyxa
[C] Clostridium
[D] Azospirillum

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29. Biomass is useful to produce ___

[A] Chemicals
[B] Fibres
[C] Biochemicals
[D] Transportation fuels

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30. Which of the following is divalent cations are usually used to make competent cells?

[A] Carbon
[B] Nitrogen
[C] Copper
[D] Calcium

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