Cell Structure and Organelles MCQs Quiz 24 Posted on April 5, 2026April 5, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 24Cell Biology Multiple Choice Questions 1. Translocation is a type of genetic rearrangement, involves _______ Protein folding DNA replication Exchange of segments Loss of DNA 2. The restriction point (R point), the checkpoint beyond which a cell is committed to DNA replication, is located in which phase of the cell cycle? M phase G₂ phase S phase G₁ phase 3. The core structure of eukaryotic cilia and flagella is known as _______. Centrosome Basal body Axoneme Microfilament 4. Cell cycle progression is primarily regulated by which molecular system? Ribosomes Cyclins and cyclin-dependent kinases Histones Heat shock proteins Microtubules 5. Differential centrifugation separates organelles based on _______ Density and size Enzyme activity pH sensitivity Charge 6. __________ are the structural feature that convert microtubule sliding into bending in cilia Radial spokes Dynein arms Basal bodies Nexin links 7. The basal body of cilia structurally resembles _______ Nucleus Lysosome Centriole Golgi apparatus 8. Peroxisomes are specialized for _______ DNA replication Free radical detoxification Protein synthesis Transcription 9. Chromosomal aberrations include _______ Deletion Duplication Inversion All of these 10. Movement of cilia and flagella is primarily driven by _______ Kinesin Dynein Myosin Actin Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 24 Cell Biology Multiple Choice Questions