Cell Structure and Organelles MCQs Quiz 13 Posted on April 2, 2026April 2, 2026Author agropublishers 0 Cell Structure and Organelles MCQs Quiz 13 Cell Biology Multiple Choice Questions 1. Telomere dysfunction can lead to _________________ Improved replication fidelity Reduced mutation rates Enhanced transcription Chromosome end-to-end fusion and instability 2. Karyotype refers to _______ Chromosome number and morphology RNA content Protein structure DNA sequence 3. Acrocentric chromosomes are characterized by _______ Equal arms Absence of centromere Very short p arm Centromere in middle 4. During cell division (meiosis and mitosis) sister chromatids are joined at _______ Centromere Telomere Nucleus Endoplasmic Reticulum 5. Which cytoskeletal component is involved in autophagosome trafficking? Actin only Intermediate filaments Microtubules DNA 6. Chloroplasts are mainly responsible for _______ Protein synthesis Photosynthesis Respiration Storage 7. Facultative heterochromatin can _______ Exist only in bacteria Never change Switch between active and inactive states Contain no DNA 8. Chromoplasts are commonly found in _______ of plants Roots Fruits and flowers Seeds Leaves 9. Protists are an incredibly diverse group, and their outer coverings (cell walls) are ____________ Chemically Variable Always absent Composed of cellulose Composed of chitin 10. The site of light reaction in chloroplast is _______ Thylakoid membrane Inner membrane Stroma Outer membrane Loading … Question 1 of 10 Cell Structure and Organelles MCQs Quiz 13 Cell Biology Multiple Choice Questions