Reference Terms
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Chromosomal crossover
Homologous recombination is the process by which two chromosomes, paired up during prophase 1 of meiosis, exchange some distal portion of their DNA.
Note: The above text is excerpted from the Wikipedia article "Chromosomal crossover", which has been released under the GNU Free Documentation License.
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Plants & Animals News
December 16, 2024
Dec. 12, 2024 — Colony surveys of common murres, an Alaskan seabird, show the full effects of the 2014-16 marine heat wave known as 'the blob.' Analysis of 13 colonies surveyed between 2008 and 2022 finds that ...
Dec. 9, 2024 — Thanks for a powerful antioxidant, Deinococcus radiodurans can withstand radiation doses 28,000 times greater than what would kill a human. In a new study, scientists discovered how the antioxidant works. Finding could drive the development of ...
Dec. 5, 2024 — A new study suggests that the fundamental abilities underlying human language and technological culture may have evolved before humans and apes diverged millions of years ...
Dec. 3, 2024 — Brain tissue is among the most energetically costly in the body, and as a result, larger-brained mammals require more energy to support brain growth and maintenance. Exactly which biological changes allowed human ancestors to meet the very high ...
Latest Headlines
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Dec. 16, 2024 — Microbes living in our guts help us digest food by reshaping the bile acids that our livers produce for breaking down fats. It turns out that two of ...
Dec. 16, 2024 — A new study reveals corals must be within only a few meters of each other to successfully reproduce, leaving them vulnerable in a warming ...
Dec. 16, 2024 — When and where to plant tree seedlings to restore forests after wildfires has a lot to do with shrubs, finds a new ...
Dec. 16, 2024 — Despite the population being almost four times larger than it was in 1982, a new study published in the journal Ecology suggests the northern muriqui ...
Dec. 16, 2024 — Scientists now have a better genetic understanding of the insect. The research offers an updated genome analysis of the common bedbug Cimex lectularius, providing new insight for those working to ...
Dec. 16, 2024 — A new study shows that more than half of the weedy rice sampled in the rice-growing region of the southeastern U.S. has become herbicide ...
Dec. 16, 2024 — Researchers have found that marine animals across mammals, birds and reptiles swim at similar relative depths when traveling and not feeding to save ...
Dec. 5, 2024 — Researchers have discovered a new population of neurons that is responsive to the hormone leptin. Leptin responsive neurons are important in obesity since leptin is sent to the brain from the body's ...
Dec. 11, 2024 — Researchers have found definitive proof of a kidney microbiome that influences renal health and kidney stone formation, demonstrating that the ...
Dec. 16, 2024 — Food allergies affect millions of people worldwide, and flavonoids are promising natural compounds to help modulate the immune response and treat inflammation caused by these allergies. In a recent ...