In humans and other animals, sex is usually determined by a single gene. However, there are claims that in some species, such as platyfish, it takes a whole "parliament" of genes acting together to determine whether offspring ...
Plants & Animals
Apr 21, 2023
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54
Nearly every cell in our body contains pairs of each of our chromosomes, and these pairs are identical in all but one case: that of our sex chromosomes. Males typically have one X and one Y sex chromosome, while females typically ...
Cell & Microbiology
Feb 9, 2023
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129
An innovative technique from Cornell University researchers finds seminal fluid protein transferred from male to female fruit flies during mating changes the expression of genes related to the fly's circadian clock.
Plants & Animals
Jan 30, 2023
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10
More than 2,500 genes exhibit significant sex differences in expression in mouse alveolar type II cells (AT2s), which are important for keeping the lungs functioning, potentially explaining sex biases in the prevalence and ...
Cell & Microbiology
Jan 12, 2023
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13
The sex of human and other mammal babies is decided by a male-determining gene on the Y chromosome. But the human Y chromosome is degenerating and may disappear in a few million years, leading to our extinction unless we ...
Evolution
Dec 6, 2022
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104
Scientists have known that sex-determination in vertebrates happens in the germ cells, a body's reproductive cells, and the somatic cells, the cells that are not reproductive cells. Yet they have not fully understood the ...
Plants & Animals
Sep 9, 2022
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72
When male and female fruit flies age, their brains become desexualized. Age-related changes take place in both sexes, but the male brain becomes feminized to a larger extent than the female brain becomes masculinized. This ...
Plants & Animals
Aug 9, 2022
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114
Higher water temperatures induce specific chemical tags at targeted locations on the DNA of embryonic zebrafish. These "epigenetic" changes can then reroute genetic pathways, so that the embryos change sex. This finding, ...
Plants & Animals
Jul 20, 2022
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141
It's not often that you see genetic systems described as "bizarre" in the title of a scientific research paper. That is unless it's from the lab of San Francisco State University Associate Professor of Biology Scott Roy, ...
Evolution
Jul 1, 2022
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66
The deletion of the Wt1 gene during the early stages of the embryonic reproductive organ formation leads to differences in sex development in adult mice, according to an article published in the journal PLOS Genetics and ...
Cell & Microbiology
Jun 22, 2022
0
3
