What the highlighted squares in this puzzle represent

Question:

Answer:

STRANDSOFADOUBLEHELIX

Length:

Similar Crossword Questions:

Close associates, and a hint to this puzzle's highlighted squares
What the three sets of circled squares in this puzzle represent
Geographical features ... or what the circled squares in this puzzle represent
Row of black squares preceding or following six puzzle answers, thereby completing them
Trains, in a way, and the key to 18 of this puzzle's black squares. (Ones that begin with the keyword are asterisked. The others are for you to discover.)
Type of gear on which the letters in this puzzle's nine theme squares are arrayed
On hold ... or what the seven rows of black squares in this puzzle's grid spell in Morse code
Drink cooler ... or a hint to six squares in this puzzle's answer
Company "sorted" in this puzzle's circled squares
Daily crosswords, to puzzle pros (so-called from the number of squares per side)
Question asked by a customs officer or a kid on Christmas ... with a hint to this puzzle's circled squares
Complete set of 12 shapes formed by this puzzle's black squares
What this puzzle's circled spaces represent
Nitpick, and what this puzzle's circled letters represent
Secret get-together, or what occurs literally in each of this puzzle's circled squares
This puzzle's theme, whose first notes are indicated by shaded squares
Web concerns ... and based on six familiar names hidden in rows 1, 4, 12 and 15 of this puzzle grid, what the black squares in those rows symbolize
Staff members, and what the circled letters in this puzzle represent
Landmark inaugurated 3/31/1889 whose shape is suggested by nine squares in this puzzle's completed grid
Welcome mat spot (our puzzle title hints at the theme revealed by the pattern of circled squares)
Puzzle based on Latin Squares
What's revealed by connecting the special squares in this puzzle in order
Economic term named the 2011 Word of the Year by the Oxford English Dictionary...and a description of 6 squares in this puzzle
Alice Walker novel ... or a hint to 12 squares in this puzzle
Like some crossword-puzzle squares