pol·y·tene 
(pŏlē-tēn′)
(pŏlē-tēn′)adj.
Relating to or having large chromosomes formed by repeated DNA replication and consisting of many chromatids side by side.
[POLY- + Latin taenia, band (from Greek tainiā, ribbon; see ten- in the Appendix of Indo-European roots).]
pol′y·tenic adj.
poly·te′ny n.