As opposed to gene-level mutations, mutations that alter longer stretches of DNA (ranging from multiple genes up to entire chromosomes) are called chromosomal mutations. These mutations often have ...

Mutations generally fall into two types: point mutations and chromosomal aberrations. In point mutations, one base pair is changed. The human genome, for example, contains over 3.1 billion bases ...

Humans typically have 46 chromosomes arranged in 23 pairs. Genetics plays a key role in answering each of these questions. For humans, our genes dictate much of how our bodies respond to the world ...

An international team of scientists has uncovered new insights into how the previously understudied duplicate X chromosome in ...

Without recombination, Y chromosomal genes degenerate over time ... A 2017 study published in the journal PLOS Genetics said the chromosome's evolution of palindromes — DNA sequences that ...

Loss of the Y chromosome (LOY) in men, a dynamic mutation linked to aging, impairs immune function and increases risks of ...

In particular, it explains that humans have one fewer chromosome pair in their cells than apes, due to a mutation found in chromosome number 2 that caused two chromosomes to fuse into one.

Chromosome mutations can also occur in plants. In many crop plants, for example in wheat and barley, the cells have complete extra sets of chromosomes due to a chromosome mutation. This gives them ...

Like the tick of a clock, the number of these mutations is a measure of time passed. By looking at the differences between Y chromosomes in the Cohanim, researchers can estimate roughly how many ...

Image: Fluorescent chromosomes in BRG1 knockout cells. Credit: Professor Jessica Downs. Scientists have found a genetic mutation that results in cancer cells being able to tolerate having an abnormal ...