Mature sperm lack intact mitochondrial DNA, study finds

New research provides insight about the bedrock scientific principle that mitochondrial DNA—the distinct genetic code embedded in the organelle that serves as the powerplant of every cell in the body—is exclusively passed ...

Humans spread out of Africa later

Modern humans spread out of Africa 20,000 years later than previously thought, according to new genetic research just published.

Mitochondria and the art of DNA maintenance

Humans have 46 chromosomes, and each one is capped at either end by repetitive sequences called telomeres. If you ask a biologist if humans have circular DNA, they are likely to say 'no.' That is because eukaryotic cell nuclei ...

Mother tongue comes from your prehistoric father

(PhysOrg.com) -- Language change among our prehistoric ancestors came about via the arrival of immigrant men - rather than women - into new settlements, according to new research.

Hanging in there: Koalas have low genetic diversity

A species relies on genetic diversity to survive and low diversity usually indicates that there has been inbreeding due to a decrease in population size. By looking at historic mitochondrial DNA (mtDNA) from museum samples, ...

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