Chromosomal Variation
Across
2. normal set of chromosomes
4. the centromere pinches off only a small amount at end
6. areas between the telomeres and the centromere
7. the largest constriction of a chromosome where spindle
fibers attach
8. one or more extra sets of chromosomes
10. centromere divides chromosome into 2 arms of
approximately equal length
15. transfer of material between nonhomologous chromosomes
17. Chromosome chart
18. centromere makes one long arm and one short arm
19. a subdiscipline within genetics that links chromosome
variations to specific traits
21. extra chromosome
22. part that actually hooks to the spindle fibers
Down
1. chromosome pair fails to separate at anaphase 1 or 2
3. 2 genetic contributions from one parent
5. p (petite)
9. q
11. graphical representation of a karyotype
12. missing a single chromosome or having an extra one
13. missing a chromosome
14. chromosome tips that shrink with each mitotic division
16. only one arm (none in humans)
20. lighter areas with more protein-encoding genes