#Question id: 8718
#XL - T Zoology
Which of the following would, if it had acted upon a gene, prevent this gene from acting as a reliable molecular clock?
#Question id: 8721
#XL - S Microbiology
Based on cladistics, which eukaryotic kingdom is polyphyletic and, therefore, unacceptable?
#Question id: 8721
#XL - T Zoology
Based on cladistics, which eukaryotic kingdom is polyphyletic and, therefore, unacceptable?
#Question id: 8773
#XL - S Microbiology
Which eukaryotic kingdom includes members that are the result of endosymbioses that included an ancient aerobic bacterium and an ancient cyanobacterium?
#Question id: 8773
#XL - T Zoology
Which eukaryotic kingdom includes members that are the result of endosymbioses that included an ancient aerobic bacterium and an ancient cyanobacterium?
#Question id: 8775
#XL - S Microbiology
Use the following information to answer the question. Paulinella chromatophora is one of the few cercozoans that is autotrophic, carrying out aerobic photosynthesis with its two elongated "chromatophores." The chromatophores are contained within vesicles of the host cell, and each is derived from a cyanobacterium, though not the same type of cyanobacterium that gave rise to the chloroplasts of algae and plants. A crucial photosynthetic gene of the cyanobacterium that gave rise to the chromatophore is called psaE. This gene is present in the nuclear genome of the cercozoan, but is not in the genome of the chromatophore. This is evidence of ________.