Answer: transcription
Explanation: Transcription is a process by which an mRNA is synthesized using a DNA template. It is the process of copying the genetic message encoded in a DNA into an RNA. This process is catalyzed by an enzyme known as RNA polymerase. The RNA polymerase requires a DNA template, four oligonucleotides (ATP, UTP, CTP, and GTP) as precursors for RNA synthesis. The newly synthesized mRNA is complementary to the template strand of DNA in the sense that wherever adenine is found in the DNA template strand uracil occurs in the mRNA strand, wherever thymine occurs in the DNA template strand, adenine is found in the mRNA strand and wherever guanine occurs in the DNA template, cytosine occurs in the mRNA strand.
Things such as oil and natural gases
<span>Biotic factors in the Arctic tundra, as with other ecosystems, include living organisms, such as microorganisms, plants and animals. The biotic factors of the tundra include over 1,500 species of plants, which classify as mosses, lichen and grasses. The hardy group of animals calling the tundra home includes many types of mammals and birds, including polar bears, Arctic foxes, caribou and other iconic species. </span>
B fertilization
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