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An acentric chromosome is one that has 1. Two centromeres ✓ 2. No centromere

When an organism gains or loses one or more chromosomes but not a complete haploid set, the condition is known as ______________. 1 . polyploidy 2. euploidy ✓ 3. aneuploidy 4. trisomy 5. triploidy. An acentric chromosome is one that has 1. Two centromeres ✓ 2. No centromere

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An acentric chromosome is one that has 1. Two centromeres ✓ 2. No centromere

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  1. When an organism gains or loses one or more chromosomes but not a complete haploid set, the condition is known as ______________. 1. polyploidy 2. euploidy ✓ 3. aneuploidy 4. trisomy 5. triploidy

  2. An acentric chromosome is one that has 1. Two centromeres ✓ 2. No centromere 3. A segmental deletion on the p arm 4. A pericentric inversion 5. A paracentric inversion

  3. Which genetic disease is caused by a trisomy for chromosome 13? ✓ 1. Patau syndrome 2. Down syndrome 3. Cri-du-chat syndrome 4. Edwards syndrome

  4. Which term refers specifically to the gain of extra chromosome sets from individuals of the same species? 1. Euploidy 2. Aneuploidy ✓ 3. Autopolyploidy 4. Allopolyploidy 5. Trisomy

  5. Which term describes the condition in which cells have a variable mixture of normal and abnormal organelles? ✓ 1. heteroplasmy 2. heterokaryon 3. heteroduplex 4. heterozygous 5. heterochronic

  6. Which of the following statements about the endosymbiotic theory is false? 1. Eukaryotic cells engulfed the ancestral bacteria from which mitochondria and chloroplasts are derived, and the two then formed a symbiotic relationship. 2. The ancestral bacteria from which chloroplasts and mitochondria are derived were capable of photosynthesis and aerobic respiration, respectively. 3. Mitochondria and chloroplasts arose independently from free‑living bacteria. ✓ 4. Mitochondria and chloroplasts evolved from pieces of chromosomal DNA that broke away from the nucleus of a eukaryotic cell.

  7. BIO 304 Lecture 16

  8. Ploidy

  9. Nondisjunction

  10. Distinguishing NDJ in meiosis I vs. meiosis II

  11. Monosomies Trisomies

  12. Down syndrome

  13. Down syndrome

  14. Autopolyploidy diploid tetraploid

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