Below is the final functional kappa light-chain protein produced from germline DNA for the kappa light-chain in humans in a mature B-cell. V2 J3 C Below is a portion of the germline DNA for the kappa light-chain in humans. The intervening sequence is denoted by a horizontal line. For each step in the process of generating the above light-chain protein from the germline DNA below, determine if the corresponding DNA or RNA sequences would be present or absent in mature B-cell DNA, pre-mRNA, and mRNA.

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