Related topics: genes · genome · cells · dna · cell division

New protein complex gets chromosomes sorted

It is no secret that DNA, in the form of chromosomes, is the building block of life. Incorrect distribution of chromosomes during cell division can have disastrous consequences. Unbalanced chromosome copy, or aneuploidy, ...

When determining sex, exceptions are the rule

For nearly a century, biologists have modeled the evolution of sex chromosomes—the genetic instructions that primarily determine whether an individual will develop into a male or female (or a certain mating type)—resulting ...

Breaking up is hard to do (especially for sex chromosomes)

As chromosomes go, X and Y make an unlikely pair. The X is large and contains thousands of genes critical for life. The Y, by contrast, is little more than a nub. Its main purpose is to provide the instructions for initiating ...

Chromosomal speciation in wild house mice

Alterations to chromosomes are considered important in speciation (the process by which new species are formed). This is because several chromosomal rearrangements can make the genome of a few individuals in a population ...

Editing plant chromosomes using molecular scissors

The CRISPR/Cas molecular scissors work like a fine surgical instrument and can be used to modify genetic information in plants. The research teams of Professor Holger Puchta of Karlsruhe Institute of Technology (KIT) and ...

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