Photos of polytene chromosomes
in different species

Insects

Chironomus tentans

Drosophila melanogaster (fruit fly)

Plants

Phaseolus coccineus (runner bean)
	Nucleus with 22 polytene chromosomes(left) and a single polytene chromosome (right). Polytene chromosomes were found also in P. vulgaris (common bean).
	For longitual structure see filament-like bundles of chromatin
	Transversal elements as band-like structure in both fluorescence(left) and phase contrast microscopy(right).

Ciliates