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Category Archives: Evolution and genetics
Scientists Edit a Dangerous Mutation from Genes in Human Embryos
The day of “editing severe mutations out of the fertilized egg (zygote)” is here. The CRISPR/Cas9 editing must be done before the zygote divides beyond the eight- or sixteen-cell stage (after which differentiation into specialized cell types and tissues begins). … Continue reading
Posted in Evolution and genetics, Scientific breakthroughs
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Latest paleo-anthropological findings on the origin of Homo sapiens
One of GEITP’s (many) ongoing themes is the Great Human Diaspora –– i.e. when and how the Homo genus arose, when and how at least 25 different “fits and starts” of new branches arose/diverged and lived for tens of thousands … Continue reading
Posted in Center for Environmental Genetics, Evolution and genetics
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Detecting mitochondrial DNA from Neaderthal and Denisoain DNA in “cave sediments”
Today, modern humans are called Homo sapiens sapiens, which have survived from earlier tribes of hominins such as Homo sapiens neaderthaliensis that had lived in various regions of the planet at least 25,000 years ago. Scientists can now discover what … Continue reading
Posted in Center for Environmental Genetics, Evolution and genetics
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Potentially a HUGE breakthrough !!! Liquid biopsies for lung cancer parients improves treatment (of tumors that are constantly changing their phenotype)
The “evolution” of tumor formation (carcinogenesis) symbolizes the quintessence of gene-environment interactions. The “biggest obstacle” (to the survival of a cancer cell) is how it can mutate and undergo epigenetic changes –– in order to survive chemotherapy and any other … Continue reading
Posted in Center for Environmental Genetics, Evolution and genetics, Scientific breakthroughs
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Wax moth caterpillars, which normally live in bee hives feeding on honey and wax, can digest plastic
Plastics are synthetic polymers derived from fossil oil and mostly resistant to biodegradation. Polyethylene (PE) and polypropylene (PP) represent ~92% of total plastic production. PE is largely used in packaging –– representing ~40% of total demand for plastic products, with … Continue reading
Posted in Center for Environmental Genetics, Evolution and genetics, Gene environment interactions
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Genetic basis of inheritance for the phenotype of monogamy and child-caring …???
Peromyscus is a diverse North American genus of mouse, with habitats ranging from arid deserts to mountainous cloud forests. Along with these tremendously disparate habitats come comparably variable behaviors. For example, sharing of parental care and social monogamy are rare … Continue reading
Posted in Center for Environmental Genetics, Evolution and genetics, Gene environment interactions
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Evidence of an ancient reptile (Dinocephalosaurus) that gave birth to live young
Live birth has evolved many times independently in vertebrates –– such as mammals and diverse groups of lizards and snakes. However, live birth had not been known before in the major clade Archosauromorpha, a group that first evolved ~260 million … Continue reading
Posted in Evolution and genetics
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Chemical tags on RNA, as well as DNA, rediscovered and implying mechanisms involving epigenetics
Chuan He (chemist at University of Chicago in Illinois) had been studying a family of proteins that repair damaged DNA, and he began to suspect that these enzymes might also act on RNA. A colleague nearby in the same building, … Continue reading
Posted in Center for Environmental Genetics, Evolution and genetics
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FW: Seven temperate terrestrial planets found around the nearby ultra-cool dwarf star TRAPPIST-1 ….!!
Most stars in our Milky Way Galaxy are much smaller and dimmer than the Sun. Low-mass stars that are about 80 times the mass of Jupiter have core temperatures that are just high enough to convert hydrogen into helium. The … Continue reading
Posted in Center for Environmental Genetics, Evolution and genetics
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Prevalence and architecture of de novo mutations responsible for developmental disorders in children
Genomes of patients having severe, undiagnosed developmental disorders are well known to be enriched in damaging de novo mutations (DNMs) in developmentally important genes. The attached paper describes the whole-exome sequencing (WES) of 4,293 families containing individuals with developmental disorders. … Continue reading
Posted in Center for Environmental Genetics, Evolution and genetics, Gene environment interactions
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