podwójna spirala

From then, the path to the double helix was clear.

Anyone who's made it through biology knows a bit about the structure of the double helix.

The double helix is thus wider and has a longer pitch.

"You know, genetic engineering goes back well before the double helix."

What was the double helix, she wanted to know.

The double helix is hardly the first big science story journalists missed.

Its structure is a double helix, with two strands wound around each other.

As with most things in the realm of the double helix, however, the controversy goes beyond what can easily be seen.

The end of the ride features a double helix before entering the station.

Pierce's sisters did not have the extra- long double helix.