Modern human DNA contains bits from all over the Neanderthal genome, except the Y chromosome. What happened?
Neanderthals, the closest cousins of modern humans, lived in parts of Europe and Asia until their extinction some 30,000 years ago.
Neanderthals, the closest cousins of modern humans, lived in parts of Europe and Asia until their extinction some 30,000 years ago.
Evolution
Jun 17, 2024
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32
What establishes the male or female sex of an ant? In humans, it is X and Y chromosomes that assume this function: Women have two X chromosomes while men have one X and one Y chromosome. In ants, bees, and wasps, the factor ...
Plants & Animals
Jun 6, 2024
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1
Newly generated, complete "end-to-end" reference genomes for the sex chromosomes of five great ape species and one lesser ape species—produced by an international collaborative team led by researchers at Penn State, the ...
Plants & Animals
May 29, 2024
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Human sex chromosomes originated from a pair of autosomes, the ordinary or non-sex chromosomes that contain the majority of our genome and come in identical pairs. That ancestral pair of autosomes diverged to become two different ...
Molecular & Computational biology
Dec 15, 2023
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1197
The Y chromosome is a never-ending source of fascination (particularly to men) because it bears genes that determine maleness and make sperm. It's also small and seriously weird; it carries few genes and is full of junk DNA ...
Evolution
Aug 24, 2023
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12
For decades, the Y chromosome—one of the two human sex chromosomes—has been notoriously challenging for the genomics community to sequence due to the complexity of its structure.
Molecular & Computational biology
Aug 23, 2023
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1417
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
RIKEN researchers have shed new light on the roles two protein complexes play in the enigmatic process of turning off one X chromosome in female mammals. This finding could help researchers discover how certain cancers occur ...
Cell & Microbiology
Apr 19, 2023
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29
Many astonishingly creative people have lived lives cut tragically short by illness. Johannes Vermeer, Wolfgang Amadeus Mozart, Jane Austen, Franz Schubert and Emily Brontë are some famous examples.
Molecular & Computational biology
Mar 26, 2023
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291
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
The Y chromosome is the sex-determining chromosome in most mammals, including humans. In mammals, it contains the gene SRY, which triggers testis development, thus determining sex. The human Y chromosome is composed of about 60 million base pairs.
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