Clorarachniophyte and cryptophyte algae contain three sets of genetic material: the nuclear genome, the chloroplast genome, and a set of genes found in the nucelomorph. What, in terms of the endosymbiotic hypothesis, is represented by the nucleomorph genes?

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Nucleomorph genes are remnant genes from the nucleus of a eukaryotic algal endosymbiont. During the course of endosymbiosis, the nucleomorph undergoes significant reductions in size and gene content, resulting in a highly reduced and compact genome.

Clorarachniophyte and Cryptophyte Algae Contain Three Sets of Genetic Material