Module 2-Lecture 4

Question 1

What is offspring genome

Answer 1

A copy of a parent’s genome

Question 2

Do present day variants contain info about past variants that left no offspring?

Answer 2

Present day variants contain NO info about past variants that left no offspring

Question 3

Does the root on a phylogenetic tree have a parent?

Answer 3

No the root has no parent

Question 4

In which direction does time flow in a phylogenetic tree?

Answer 4

Time flows from root to tips

Question 5

What is an internal node?

Answer 5

The most recent common ancestor (MRCA) for a set of tips

Question 6

Can positions flip on a phylogenetic tree?

Answer 6

Yes as long as the relationship remains the same

Question 7

What is a monophyletic group or clade?

Answer 7

A group of organisms that includes ALL THE DESCENDANTS of their most recent common ancestor

Question 8

What is a Paraphyletic group?

Answer 8

A group of organisms that DOES NOT INCLUDE ALL OF THE DESCENDANTS of their most recent common ancestors