How much dna is transcribed at a time?

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

What element is able to combine with itself and hydrogen to form large molecules ?

What are the proteins in connectivity tissues of your foot examples of?