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DNA replication

Life

Microbe somehow survives without key proteins for replicating its DNA

A microbe called Carpediemonas membranifera lacks a key set of proteins thought essential for copying DNA, and therefore for reproduction

guanacos

Life

Llamas and alpacas carry genes from mysterious 鈥榞host鈥� relatives

Humans

People of European descent evolved resistance to TB over 10,000 years

mammoth

Life

First million-year-old DNA extracted from Siberian mammoth teeth

Humans

Do telomere length tests really reveal your biological age?

Life

CRISPR gene editing used to store data in DNA inside living cells

Humans

How nature, nurture and sheer randomness combine to make a unique you

sabre-toothed cat

Life

Social life of extinct sabre-toothed cat revealed by ancient DNA

tardigrade

Life

Secret to tardigrades’ toughness revealed by supercomputer simulation

RNA molecules

What is RNA?

RNA (ribose nucleic acid) is a complex molecule that plays a big part in living cells.

Chromosomes

Life

Quadruple-stranded DNA seen in healthy human cells for the first time

Cloning

What is a genetically modified organism?