You are investigating the DNA content of a newly-discovered bacterial species, and find that this organism's genome is 26% cytosine. What percentage of this organism's genome is thymine?

Where does the information about where each transcription factor binds originate?

Why do you suppose the structural polysaccharide cellulose does not contain branches?

The image shows a sandstone formation with visible bands of different colors. what do the bands indicate about how this sedimentary rock was formed? choose two answers. a). the rock was made from more than one material. b). water was absent during the compaction and cementation process. c). sediments and other matter were deposited in layers before lithification. d). the rock was stretched horizontally by the pressure from surrounding rocks. e). layers of hot liquid in the rocks cooled and solidified at different tempatures