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Vor 2 Tagen · Autosomal recessive is a pattern of inheritance characteristic of some genetic disorders. “Autosomal” means that the gene in question is located on one of the numbered, or non-sex, chromosomes. “Recessive” means that two copies of the mutated gene (one from each parent) are required to cause the disorder. In a family where both parents ...
Vor 2 Stunden · David Cycleback. Jul 17, 2024. The long-running British show Doctor Who centered on time travel. While I’ve written about the science and philosophy of time, including in past posts, time travel doesn't particularly fascinate me. I find the idea of humans traveling through time, like in Doctor Who, highly improbable, if not impossible.
Vor 5 Tagen · Evolutionary psychologists say that natural selection has provided humans with many psychological adaptations, in much the same way that it generated humans' anatomical and physiological adaptations. As with adaptations in general, psychological adaptations are said to be specialized for the environment in which an organism evolved, the environment of evolutionary adaptedness.
Vor 3 Tagen · Karyotype describes the amount of chromosome count and morphology of an organism under the light microscope. The derivation and study of karyotypes is part of cytogenetic studies. In normal diploid organisms, autosomal chromosomes are present in two copies. Karyotypes can be used for many purposes, such as studies of chromosomal iterations in ...
Vor 4 Tagen · In humans, the mutation rate is about 50–90 de novo mutations per genome per generation, that is, each human accumulates about 50–90 novel mutations that were not present in his or her parents. This number has been established by sequencing thousands of human trios, that is, two parents and at least one child.
Vor 4 Tagen · Orangutan - Social, Intelligent, Endangered: Orangutans have demonstrated cognitive abilities such as logical reasoning, self-recognition, symbolic communication, and tool use. The IUCN declared Bornean and Sumatran orangutans critically endangered species. Most authorities divide orangutans into three species and Bornean orangutans into three subspecies.
