The Alvin is a human-made vehicle that helps to dive deep into the oceans in order to<u> study the ocean currents and the vertical distribution of water</u>. It is also helpful in constructing maps and ocean floor topographic surveys. It is so technically designed that the humans diving with this vehicle at a greater depth, below the water can withstand the extreme pressure.
It is the first deep-ocean submersible craft in the whole world that is constructed in order to research and explore the ocean.
PROMOTER is a DNA sequence where RNA polymerase binds and begins the process of transcription. ENHANCER is a D N A sequence that binds regulatory proteins that interact with promoter-bound proteins to activate transcription.
