Cell Structure and Organelles MCQs Quiz 14

1. Telomere shortening occurs mainly due to _______________

 RNA instability

 Incomplete replication of chromosome ends

 Excess ATP production

 Protein degradation

2. The conversion of chloroplasts into chromoplasts occurs during _______

 Leaf fall

 Fruit ripening

 Seed germination

 Cell division

3. Telomeres are best described as ______________

 RNA sequences in the nucleus

 Random DNA segments in the cytoplasm

 Short, repetitive DNA sequences at the ends of linear chromosomes

 Protein-only structures at chromosome ends

4. Fusion of autophagosomes with lysosomes is mediated by _____________

 DNA ligases

 Polymerases

 ATP synthase

 SNARE proteins

5. Telocentric chromosomes have _______

 No centromere

 Terminal centromere

 Two centromeres

 Central centromere

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

 Stroma

 Cytoplasm

 Granum

 Thylakoid

7. Which plastid contains chlorophyll?

 Amyloplast

 Chromoplast

 Chloroplast

 Leucoplast

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

 Telophase

 Anaphase

 Prophase

 Metaphase

9. Chromosomes lacking a centromere are called _______

 Acentric chromosomes

 Metacentric chromosomes

 Polycentric chromosomes

 Telocentric chromosomes

10. Telocentric chromosomes are _______ in humans

 Common

 Rare

 Absent

 Highly abundant

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Cell Structure and Organelles MCQs Quiz 14

Cell Biology Multiple Choice Questions