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A prion / ˈ p r iː ɒ n / ⓘ is a misfolded protein that induces misfolding in normal variants of the same protein, leading to cellular death. Prions are responsible for prion diseases, known as transmissible spongiform encephalopathy (TSEs), which are fatal and transmissible neurodegenerative diseases affecting both humans and animals.
Boris Karloff in James Whale's 1931 film Frankenstein, based on Mary Shelley's 1818 novel.The monster is created by an unorthodox biology experiment.. Biology appears in fiction, especially but not only in science fiction, both in the shape of real aspects of the science, used as themes or plot devices, and in the form of fictional elements, whether fictional extensions or applications of ...
Speculative fiction in technology of reproduction may involve cloning and ectogenesis, i.e., artificial reproduction). [2] [3]The latter part of the 2000s decade has also seen an upswing of films and other fiction depicting emotional struggles of assisted reproductive technology in contemporary reality rather than being speculation.
Self-replication is a fundamental feature of life. It was proposed that self-replication emerged in the evolution of life when a molecule similar to a double-stranded polynucleotide (possibly like RNA) dissociated into single-stranded polynucleotides and each of these acted as a template for synthesis of a complementary strand producing two double stranded copies. [4]
While still behaving mostly as normal children, the two occasionally show signs of developing unusual thought patterns, such as a conversation between Scott and his father about how salmon reproduce, in which Scott thinks it would be natural for a species to "send" its eggs upstream in a river, to hatch, and the young would choose to return to ...
Sexual themes are frequently used in science fiction or related genres.Such elements may include depictions of realistic sexual interactions in a science fictional setting, a protagonist with an alternative sexuality, a sexual encounter between a human and a fictional extraterrestrial, or exploration of the varieties of sexual experience that deviate from the conventional.
The geneticist Dan Koboldt observes that while science and technology play major roles in fiction, from fantasy and science fiction to thrillers, the representation of science in both literature and film is often unrealistic. [28] In Koboldt's view, genetics in fiction is frequently oversimplified, and some myths are common and need to be debunked.
"A science fiction story is a story built around human beings, with a human problem, and a human solution, which would not have happened at all without its scientific content." [13] Basil Davenport. 1955. "Science fiction is fiction based upon some imagined development of science, or upon the extrapolation of a tendency in society." [14] Edmund ...