The traditional tree of life (shown above) presents the three dom...

Question

The traditional tree of life (shown above) presents the three domains as distinct, monophyletic lineages. However, other hypotheses propose different views on the relationships among the Archaea, Bacteria, and Eukarya. In particular, the two-domain hypothesis—or eocyte hypothesis—is emerging as a well-supported alternative to the three-domain hypothesis. The eocyte hypothesis, illustrated below, suggests that eukaryotes evolved from eocytes (also known as the Crenarchaeota—a major lineage of the Archaea). Resolving the relationships among these ancient lineages is difficult, but it has profound implications on our understanding of the origin of eukaryotic cells. What other types of evidence or features might be used to ascertain whether the tree of life is best represented according to the three-domain or the eocyte hypothesis?

Accepted Answer

Hey everyone. Let's take a look at this question together. Which of the following data will be useful to construct a philo genetic tree of pro carry outs archaea and eukaryotes. So let's recall what we know about philo genetic trees and constructing them. And let's make a list of some of the important information that we need to know when constructing these fill a genetic trees. So some important characteristics of organisms to help us construct that tree are the cellular components of the organisms, such as whether or not they have a membrane bound organelles like a nucleus or if they're multicellular or uni cellular, it's very important the genetic makeup. Seeing what genes these organisms might possess, helps us determine what they're closely related to as well as like the time period that they existed. So we can put together different organisms that existed around the same time. And try and figure out how they are closely related Now. All the things that we just listed in the need to know that we know is important when constructing a philo genetic tree are all listed here. And answer choices. A. B. And C. Cell biology is that cellular component. DNA sequencing is the genetic makeup and the fossil records show us how long ago those creatures existed. So the correct answer here is answer choice D. All the above. Because all three answer choices are all useful data when constructing a philo genetic tree of the prokaryotes, Archaea and eukaryotes. I hope you found this video to be helpful. Thank you and goodbye

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