Heated debate on lizard sex
Sex is a complicated affair for Australia's Jacky Dragon lizard.
Plants & Animals
Feb 9, 2021
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Page 19 - News tagged with chromosomes
Snake sex chromosomes say less about sex and more about survival
Sex-specific chromosomes are a dangerous place to be, if you're a gene. Because these chromosomes—Y chromosomes, in humans—do not have a matching chromosome with which to exchange genetic information, they are prone to ...
Plants & Animals
Jan 21, 2021
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112
Reverse engineering 3-D chromosome models for individual cells
Genome analysis can provide information on genes and their location on a strand of DNA, but such analysis reveals little about their spatial location in relation to one another within chromosomes—the highly complex, three-dimensional ...
Cell & Microbiology
Jan 14, 2021
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Researchers build artificial chromosome
Biotechnologists at Delft University of Technology have built an artificial chromosome in yeast. The chromosome can exist alongside natural yeast chromosomes, and serves as a platform to safely and easily add new functions ...
Biotechnology
Jan 11, 2021
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How Earth's oddest mammal got to be so bizarre
Often considered the world's oddest mammal, Australia's beaver-like, duck-billed platypus exhibits an array of bizarre characteristics: it lays eggs instead of giving birth to live babies, sweats milk, has venomous spurs ...
Plants & Animals
Jan 6, 2021
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Researchers uncover the unique way stem cells protect their chromosome ends
Telomeres are specialized structures at the end of chromosomes which protect our DNA and ensure healthy division of cells. According to a new study from researchers at the Francis Crick Institute published in Nature, the ...
Cell & Microbiology
Nov 25, 2020
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97
Chromosomes look different than you think
In high school textbooks, human chromosomes are pictured as wonky Xs like two hotdogs jammed together. But those images are far from accurate. "For 90 percent of the time," said Jun-Han Su, "chromosomes don't exist like that."
Cell & Microbiology
Nov 18, 2020
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The bull Y chromosome has evolved to bully its way into gametes
In a new study, published Nov. 18 in the journal Genome Research, scientists in the lab of Whitehead Institute Member David Page present the first ever full, high-resolution sequence of the Y chromosome of a Hereford bull. ...
Biotechnology
Nov 18, 2020
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59
A gel for dosage compensation
Human females have two X chromosomes, and males only one. This chromosome imbalance also extends to other branches of the animal kingdom. Interestingly, the humble fruit fly has devised a different way to 'equalize' these ...
Cell & Microbiology
Nov 18, 2020
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Scientists identify 'dumbbell-like' structures of protein-encoding DNA
How life works may come down to dumbbell-like bits of DNA.
Cell & Microbiology
Oct 21, 2020
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