Over the past 100 million years, mammals have adapted to nearly every environment on Earth. Scientists with the Zoonomia Project have been cataloging the diversity in mammalian genomes by comparing DNA sequences from 240 ...
Evolution
Apr 27, 2023
0
581
The sled dog Balto has been celebrated in books and movies for his role in delivering desperately needed diphtheria antitoxin to Nome, Alaska, in 1925. Now, his DNA has enabled scientists to explore the genetics of 1920s ...
Evolution
Apr 27, 2023
0
3816
Researchers at New York University have created artificial Hox genes—which plan and direct where cells go to develop tissues or organs—using new synthetic DNA technology and genomic engineering in stem cells.
Biotechnology
Jun 30, 2022
0
220
Cells contain machinery that duplicates DNA into a new set that goes into a newly formed cell. That same class of machines, called polymerases, also build RNA messages, which are like notes copied from the central DNA repository ...
Molecular & Computational biology
Jun 11, 2021
39
12351
For all animals, eliminating some cells is a necessary part of embryonic development. Living cells are also naturally sloughed off in mature tissues; for example, the lining of the intestine turns over every few days.
Cell & Microbiology
May 5, 2021
0
114
If a bone breaks or a tendon snaps, you know to seek treatment immediately. But your most fragile and precious cellular commodity, chromosomal DNA, breaks with astounding frequency—some estimate as many as 10,000 times ...
Biotechnology
Dec 2, 2019
0
126
A team from the Broad Institute of MIT and Harvard has developed a new CRISPR genome-editing approach by combining two of the most important proteins in molecular biology—CRISPR-Cas9 and a reverse transcriptase—into a ...
Biotechnology
Oct 21, 2019
2
339
Many animals, including humans, have internal clocks and calendars to help them regulate behavior, physiological functions and biological processes. Although scientists have extensively studied the timekeeping mechanisms ...
Biotechnology
Sep 23, 2013
0
0
MIT researchers have shown that they can turn genes on or off inside yeast and human cells by controlling when DNA is copied into messenger RNA—an advance that could allow scientists to better understand the function of ...
Biotechnology
Sep 3, 2013
0
0
People say "When pigs fly" to describe the impossible. But even if most mammals are landlubbers, the ability to glide or fly has evolved again and again during mammalian evolution, in species ranging from bats to flying squirrels. ...
Evolution
17 hours ago
0
1
