Cell Structure and Organelles MCQs Quiz 14

1. Telocentric chromosomes are _______ in humans

 Common

 Highly abundant

 Absent

 Rare

2. Telomeres are best described as ______________

 Protein-only structures at chromosome ends

 Random DNA segments in the cytoplasm

 Short, repetitive DNA sequences at the ends of linear chromosomes

 RNA sequences in the nucleus

3. Chromosomes lacking a centromere are called _______

 Acentric chromosomes

 Telocentric chromosomes

 Metacentric chromosomes

 Polycentric chromosomes

4. Telocentric chromosomes have _______

 Two centromeres

 Central centromere

 Terminal centromere

 No centromere

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

 Prophase

 Metaphase

 Anaphase

 Telophase

6. The conversion of chloroplasts into chromoplasts occurs during _______

 Fruit ripening

 Leaf fall

 Seed germination

 Cell division

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

 Granum

 Stroma

 Thylakoid

 Cytoplasm

8. Telomere shortening occurs mainly due to _______________

 Protein degradation

 Excess ATP production

 RNA instability

 Incomplete replication of chromosome ends

9. Fusion of autophagosomes with lysosomes is mediated by _____________

 SNARE proteins

 ATP synthase

 Polymerases

 DNA ligases

10. Which plastid contains chlorophyll?

 Chloroplast

 Leucoplast

 Amyloplast

 Chromoplast

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Cell Structure and Organelles MCQs Quiz 14

Cell Biology Multiple Choice Questions