Biology – Multiple Choice Questions (MCQs)

1. 25. What is mitosis?

   • A. Cell division that results in two genetically identical daughter cells
   • B. Cell division that results in four genetically different daughter cells
   • C. A type of asexual reproduction
   • D. The process of fertilization

2. 26. What is meiosis?

   • A. Cell division that results in two identical cells
   • B. Cell division that results in four genetically different daughter cells with half the number of chromosomes
   • C. A type of sexual reproduction in bacteria
   • D. The process of protein synthesis

3. 27. What is heredity?

   • A. The transmission of traits from parents to offspring
   • B. The change in genetic material over time
   • C. The interaction of organisms with their environment
   • D. The process of growth and development

4. 28. What is genetics?

   • A. The study of heredity and variation
   • B. The study of cells
   • C. The study of evolution
   • D. The study of ecosystems

5. 29. What is a gene?

   • A. A segment of DNA that codes for a specific trait
   • B. A type of protein
   • C. A part of the cell membrane
   • D. A structure found in the cytoplasm

6. 30. What is DNA?

   • A. Deoxyribonucleic acid
   • B. Ribonucleic acid
   • C. Amino acid
   • D. Fatty acid

7. 31. What is RNA?

   • A. Ribonucleic acid
   • B. Deoxyribonucleic acid
   • C. Glucose
   • D. Starch

8. 32. What is a chromosome?

   • A. A structure made of protein
   • B. A thread-like structure of nucleic acids and protein found in the nucleus of most living cells
   • C. carrying genetic information in the form of genes
   • D. A type of carbohydrate

9. 33. What is a mutation?

   • A. A sudden change in the environment
   • B. A permanent change in the DNA sequence
   • C. A change in the organism's behavior
   • D. A temporary change in the organism's appearance

10. 34. What is evolution?

    • A. The change in the inherited characteristics of biological populations over successive generations
    • B. The growth of an individual organism
    • C. The adaptation of an organism to its immediate surroundings
    • D. The process of cell division

11. 35. What is natural selection?

    • A. The process by which individuals with traits better suited to their environment survive and reproduce at higher rates
    • B. The process of artificial breeding
    • C. The random change in allele frequencies
    • D. The migration of individuals between populations

12. 36. What is adaptation?

    • A. A temporary change in an organism's behavior
    • B. An inherited trait that enhances an organism's survival and reproduction in a particular environment
    • C. The process of learning new skills
    • D. The development of resistance to antibiotics