Which of the following is true about the dna molecule during transcription?
it unwinds from both ends.
o
it makes a copy of itself.
it opens up all of the way, one gene at a time.
only a small area is opened,

Only a small area is opened

Explanation:

in 1972 the fluid—mosaic membrane model of membrane structure was proposed based on thermodynamic principals of organization of membrane lipids and proteins and available evidence of asymmetry and lateral mobility within the membrane matrix [s. j. singer and g. l. nicolson, science 175 (1972) 720–731].

your answer is "the 1950's"