Aparticle can infect humans and make them sick. it attaches to a host cell and injects its rna, which the host uses to make proteins for the particle. this particle cannot reproduce on its own and can only copy itself by using the machinery of the host.

Which of the following would most likely be key to gathering evidence that the rna world hypothesis is valid? creation of suitable environments for long-term study of single-celled organisms simulation of early earth conditions and long-term study of the resulting molecules development of a system for studying the microsphere's ability to absorb additional molecules categorization of the different specific conditions that result in the development of microspheres

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

Areal dna molecule consists of thousands of these pairs of nucleotides. what is the pairing arrangement of the nitrogen bases