Cell Structure and Organelles MCQs Quiz 14

1. Telocentric chromosomes have _______

 Two centromeres

 No centromere

 Central centromere

 Terminal centromere

2. Fusion of autophagosomes with lysosomes is mediated by _____________

 ATP synthase

 Polymerases

 DNA ligases

 SNARE proteins

3. Chromatid separation,  is a key event that occurs during _______ of meiosis or mitosis

 Metaphase

 Anaphase

 Telophase

 Prophase

4. Telomere shortening occurs mainly due to _______________

 Incomplete replication of chromosome ends

 Protein degradation

 Excess ATP production

 RNA instability

5. Telocentric chromosomes are _______ in humans

 Common

 Rare

 Absent

 Highly abundant

6. The conversion of chloroplasts into chromoplasts occurs during _______

 Cell division

 Leaf fall

 Fruit ripening

 Seed germination

7. Which plastid contains chlorophyll?

 Chromoplast

 Chloroplast

 Leucoplast

 Amyloplast

8. The dark reaction (Calvin cycle) occurs in _______ of the chloroplast

 Thylakoid

 Cytoplasm

 Stroma

 Granum

9. Telomeres are best described as ______________

 Random DNA segments in the cytoplasm

 Protein-only structures at chromosome ends

 RNA sequences in the nucleus

 Short, repetitive DNA sequences at the ends of linear chromosomes

10. Chromosomes lacking a centromere are called _______

 Acentric chromosomes

 Metacentric chromosomes

 Telocentric chromosomes

 Polycentric chromosomes

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Cell Structure and Organelles MCQs Quiz 14

Cell Biology Multiple Choice Questions