Part A The following question refer to this phylogenetic tree, depicting the ori

Question

Part A The following question refer to this phylogenetic tree, depicting the origins of life and of the three domains. Horizontal lines indicate instances of gene or genome transfer Time Bacteria Aschaea A possible phylogenetic tree for the three domains of ife If the early history of life on Earth is accurately depicted by the figure above, then which statement is most in agreement with the hypothesis proposed by this tree? Eukaryotes are more closely related to archaeans than to bacteria. The last universal common ancestor of all extant species is one individual species The origin of the three domains appears as a polylomy Archaean genomes should not contain genes that originated in bacteria, and vice versa Submit Request Answer

Explanation / Answer

CORRECT ANSWER : the last universal common ancestor of all extent species is one individual species.

EXPLANATION : This is a phylogenic tree and these are used to show evolutionary phases of organisms or species. Phylogenetic trees are basically the hypothesis that are created by scientists to show their studies on evolution.

This tree have a single lineage at base and it represents as a common ancestor. In this phylogenetic tree there is a single ancestoral lineage from which all the three domains - bacteria, Archaea and eukarya comes like branches.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---