Phylogenetic Trees Quiz

What is a phylogenetic tree?

• A statistical model for evolution

• A representation of evolutionary history

• A type of molecular marker

• A method for DNA sequencing

What do the endpoints of the branches in a phylogenetic tree represent?

• Molecular markers

• Evolutionary divergence

• Present-day species or sequences

• Common ancestors

What is the root node in a phylogenetic tree?

• The endpoint of a branch

• A type of molecular sequence

• The point where two branches meet

• The common ancestor of all members of the tree

Which type of phylogenetic tree does not have a specified root node?

• Phylogram

• Cladogram

• Unrooted tree

• Rooted tree

What is a cladogram?

• A tree that shows evolutionary divergence

• A type of molecular marker

• A tree that displays only branching patterns

• A method for constructing phylogenetic trees

What is the first step in constructing a phylogenetic tree?

• Multiple sequence alignment

• Selection of molecular marker

• Construction of the phylogenetic tree

• Assessment of the reliability of the tree

Which program can be used for multiple sequence alignment?

• Maximum likelihood

• Neighbor-Joining

• UPGMA

• Gblocks

What does the maximum parsimony method aim to minimize?

• The computational time

• The length of the branches

• The number of evolutionary changes

• The number of sequences

Which method does not assume a molecular clock?

• UPGMA

• Maximum likelihood

• Maximum parsimony

• Neighbor-Joining

What is bootstrapping used for in phylogenetic analysis?

• To construct the phylogenetic tree

• To align sequences

• To assess the reliability of a tree

• To select molecular markers