No Image

Male Y chromosomes not ‘genetic wastelands’

February 19, 2019 dna 0
Researchers have found a way to sequence a large portion of the Y chromosome in the fruit fly Drosophila melanogaster — the most that the Y chromosome has been assembled in fruit flies. The research provides new insights into the processes that shape the Y chromosome, adding to the evidence that, far from a genetic wasteland, Y chromosomes are highly dynamic and have mechanisms to acquire and maintain genes.
No Image

Another early-onset Alzheimer’s gene mutation found, and traced back to Africa

February 19, 2019 dna 0
For some of us, they carry the bright blue of our grandfather’s eyes. For others they result in the characteristic cleft chin or the familial tendency toward color blindness. But in some families, the genetic mutations handed down from generation to generation aren’t as benign. And for one family in particular, the mutation results in early-onset Alzheimer’s disease.