Question 19: In the tree to the right, which group is more ancestral? Question 2

Question

Question 19: In the tree to the right, which group is more ancestral? Question 20: In the same tree, which two groups are most closely related? Question 21: Which of the following would not be a good trait to help differentiate groups of organisms? Question 22: What type of traits are useful when constructing monophyletic clades? Question 23: A phylogenetic tree is a hypothesis about the evolutionary relationships between groups of organisms a. True b. False Question 24: When constructing a phylogenetic tree, a scientist should only use mo- lecular (DNA) data. a. True b. False Question 25: The underlying premise of cladistics and phylogeny is that:

Explanation / Answer

Ans-19 the group A in the clade is more ancestral because there is no split lineage between the A and the ancestor, also there is no branching like other groups so A is much more ancestral as compared to other groups.

Ans- 20 in the same cladogram the group C and D are closely related because they share common lineage in the cladogram.

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