Genetics Discussion 3

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Across
  1. 4. abnormal gamete lost copy of chromosome fertilization will result in only 1 copy of linkage group
  2. 7. chromosomes decondense, spindle, Breaks down,2 nuclear membranes form around chromosome at each pole
  3. 10. sister chromatids attach to spindle by kinetochore microtubules
  4. 11. many / multiples of chromosomes 3n triploids 4n tetraploids
  5. 12. centromere divides, each chromatid separate chromosome
  6. 14. deviations involving loss or gain of 1+ chromosomes
  7. 15. 3 copies of linkage group if extra choppy of chromosome present
Down
  1. 1. gamete will have 2 copies or no copy of 1+ chromosomes
  2. 2. Regions of chromosome occur twice
  3. 3. dosage compensation: almost all genes on 1 X chromosome in cell are inactivated
  4. 5. DNA / chromosomal proteins duplicate in ____: 2 sister chromatid attached to centromere
  5. 6. 2 simultaneous breaks occur Portions of chromosomes coiled next to each other in interphase
  6. 8. chromosomes coil /condense into compact structures, move easily within cell
  7. 9. chromosomes line up at equator between centrosome poles
  8. 13. normal chromosomal makeup of individual