Question

You have been chosen to join a team of scientists investigating the arrival of a space probe from an unknown planet. The denizens of this planet sent along some representative organisms. Genetic studies reveal that one of the organisms has three separate sets of DNA. Explain these findings in light of your knowledge of genetics.

a

This organism is may have evolved three sets of DNA through endosymbiotic events much like plants did to have nuclear, mitochondrial, and chloroplast DNAs.

b	This organism is not likely to be aneuploid because all members of its species also have three sets of chromosomes

c	This organism could be a polyploid but only if all three sets or DNA consist of homologous chromosomes.

d	All of the above are good explanations of these findings.