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.
Pterois volitans and P. miles. Native range: Indo-Pacific and Red Sea. Invasive range: East Coast of the United States and Caribbean Sea. Impacts: Lionfish can reduce the abundance of small native fish by up to 95% on some coral reefs. Reducing lionfish numbers and restoring populations of native fish can be challenging, given the lionfishâs ability to inhabit diverse habitats. High recruitment pressure from lionfish can create permanent alterations to native reef fish communities.