Inbreeding detrimental for survival

Biologists have long known that inbreeding can be detrimental. Inbreeding results in less genetic variation, making species more vulnerable if changes occur that require them to adapt.

Siblings can also differ from one another in bacteria

In human reproduction, the genes of the mother and father are combined and mixed in countless variations. Their offspring can differ significantly from one another. However, bacteria multiply by simple cell division, so that ...

Genetics could help protect coral reefs from global warming

Coral reefs are dying at an alarming rate as water temperatures rise worldwide as a result of global warming, pollution and human activities. In the last three decades, half of Australia's Great Barrier Reef has lost its ...

Origins of genetic variability in seals

A new study led by Ludwig-Maximilians-Universitaet (LMU) in Munich researchers shows that fluctuations in population sizes in the past have had a significant effect on contemporary seal populations, and estimates the risk ...

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Genetic variation

Genetic variation, variation in alleles of genes, occurs both within and among populations. Genetic variation is important because it provides the “raw material” for natural selection.

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