Inheritance Inheritance. Metachromatic leukodystrophy is inherited in an autosomal recessive manner. This means that both copies of the disease-causing gene in each cell must have a mutation for an individual to be affected. Individuals inherit two copies of each gene - one copy from each parent.
Crown-of-thorns starfish. Crown-of-thorns starfish are one of the most damaging creatures of tropical coral reefs, particularly Australia's Great Barrier Reef. They are voracious predators that release the contents of their stomach on to the coral.
Share on Facebook. Recent marine surveys by scientists in the Great Barrier Reef have found that an explosion in the population of the crown-of-thorns starfish has decimated parts of the regionâs reefs and are now threatening part of the so-called Coral Triangle â one of the worldâs richest regions of coral reef biodiversity.