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tag genetic variation genetics genomics evolution

DNA molecule.
Finding DNA Tags in AAV Stacks
Mariella Bodemeier Loayza Careaga, PhD | Mar 7, 2024 | 8 min read
Ten years ago, scientists put DNA barcodes in AAV vectors, creating an approach that simplified, expedited, and streamlined AAV screening. 
Yeast Made to Harvest Light Hint at Evolution’s Past
Kamal Nahas, PhD | Feb 21, 2024 | 6 min read
Scientists transferred light-harvesting proteins into yeast for the first time, shining a light on the past lives of eukaryotic cells.
front view of a green grasshopper with a white and orange face.
Why Do Male Organisms Exist?
Hannah Thomasy, PhD | Mar 1, 2024 | 2 min read
Some species of lizards, grasshoppers, and crustaceans have adopted a ladies-only lifestyle.
Genetics Paper Retracted
Jessica P. Johnson | Sep 2, 2011 | 1 min read
Due to statistical errors, a Science paper claiming that mutation is responsible for genetic variation is retracted.
Genetic Variation Illuminates Murky Human History
Douglas Steinberg | Jul 23, 2000 | 8 min read
If humans are 99.9 percent genetically identical, as President Bill Clinton is fond of asserting when he extols the Human Genome Project, that 10th-of-a-percent difference has a lot of explaining to do. How does genetic variation determine a person's unique physical traits? Can it predict someone's susceptibility to a disease? Such questions, pertaining to the present or future, are what occupy most human geneticists. A small group, however, studies genetic variation as a clue to the past. Som
The genetics of metamorphosis
Jonathan Weitzman(jonathanweitzman@hotmail.com) | Jan 26, 2003 | 1 min read
Comparative genomics reveals variation in developmental gene expression during fly metamorphosis.
Histological slide showing cancerous prostate tissue
2D Genetic Map of Prostate Cells Charts Cancer Growth
Holly Barker, PhD | Aug 23, 2022 | 4 min read
An in situ map of copy number variations in prostate tissue reveals that purportedly cancerous genomic changes frequently occur in the healthy tissue surrounding tumors.
NIH Jumps Into Genetic Variation Research
Douglas Steinberg | Jan 18, 1998 | 9 min read
The field is given a boost by a widening of focus at the institutes as well as a report praising a major initiative. During the brief earthly tenure of the species Homo sapiens, the human genome seems to have accumulated just the right amount of variation to suit the purposes of geneticists. Single-nucleotide polymorphisms (SNPs), the DNA bases that vary systematically between subpopulations, are common enough to serve usefully as chromosomal markers but not so common as to make genetic analys
The illustration shows floating chromosomes with a Y-shaped chromosome in the foreground.
Closing the Gaps in the Human Genome: Why Y Was the Final Hurdle
Kamal Nahas, PhD | Aug 28, 2023 | 4 min read
For two decades, scientists struggled to fully sequence the Y chromosome. Finally, researchers have mapped its full length thanks to recent advances in sequencing technology.
Mouse Genomes Catalogued
Sabrina Richards | Sep 14, 2011 | 3 min read
Researchers have sequenced the genomes of 17 different mouse strains, boosting research into the genetic basis of phenotypic variation, disease, and evolution.

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