A is true, the others are not. I would assume they count the mRNA and tRNA in protein synthesis as 'double stranded'
Answer:
C. Tape Measure
Explanation:
Thats the best of the options.
<span>Proteins secreted by epithelial cells. The basement membrane forms as a thin protein fibre membrane with mucopolysaccharides. It separates an epithelium from underlying tissue. Its main function is to anchor epithelium to dermis underneath. The membrane consists of different extracellular matrix structural proteins.</span>
