Answer:
<h2>Genotype, sequence, mRNA, cytoplasm, proteins, phenotype</h2>
Explanation:
The allele combination at a gene locus is known as an organism's genotype, which after expression define the phenotype of that organism.
Th sequence of nucleotide in the DNA then transcribed to produce mRNA by RNA polymerase. Then mRNA exported into the cytoplasm and works as template for the synthesis of protein. This protein defines the phenotype of that organism.
First is Light. This area in the deep sea, where there is totally no light at all. Creatures survive by producing their own light through chemical reaction, which is called bioluminescence. Second is Food. Since light cannot reach this area anymore, photosynthesis cannot take place. The creatures feed on decaying organisms.
Last is Oxygen. Aphotic region is the coldest region of the sea and have an adequate amount of oxygen.