30 Points! Identify the first step of DNA transcription below.
O The RNA polymerase binds to a DNA molecule and separates its two strands.
O Specific base sequences on the DNA molecule signal where the RNA polymerase should begin transcribing a
section of mRNA.
O Other base sequences on the DNA then signal that the new mRNA molecule is complete, and transcription
stops.
O One strand of the DNA serves as a template to assemble nucleotides together into a complementary mRNA
strand.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

it marks things for degradation via the proteasome. it alters there celluar location.