Phylogenetic Trees
Biology ⇒ Evolution and Diversity
Phylogenetic Trees starts at 10 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Phylogenetic Trees.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A phylogenetic tree shows that species A and B share a more recent common ancestor with each other than with species C. Which two species are more closely related?
A researcher is constructing a phylogenetic tree using both morphological and molecular data. What is the advantage of using multiple data types?
Describe the difference between a cladogram and a phylogram.
Describe the principle of maximum parsimony in phylogenetic analysis.
Describe what is meant by a 'clade' in a phylogenetic tree.
A phylogenetic tree shows that species A and B share a more recent common ancestor with each other than with species C. Which two species are more closely related?
A researcher is constructing a phylogenetic tree using both morphological and molecular data. What is the advantage of using multiple data types?
Given the following DNA sequences for three species:
Species 1: ATCG
Species 2: ATGG
Species 3: TTGG
Which two species are most closely related based on these sequences?
Which method is commonly used to construct phylogenetic trees based on genetic distance?
(1) Maximum parsimony
(2) Neighbor-joining
(3) Cladistics
(4) Fossil dating
Which of the following best describes a 'node' in a phylogenetic tree?
(1) A point where two branches meet, representing a common ancestor
(2) The end of a branch, representing a current species
(3) The root of the tree
(4) A mutation event
Which of the following best describes a polyphyletic group?
(1) Includes a common ancestor and all its descendants
(2) Includes a common ancestor and some, but not all, descendants
(3) Includes species with different ancestors
(4) Includes only extinct species
Which of the following is a limitation of using morphological data to construct phylogenetic trees?
(1) Morphological data are always available
(2) Morphological traits can be influenced by environmental factors
(3) Morphological data are more accurate than molecular data
(4) Morphological data cannot be used for extinct species
Fill in the blank: A __________ is a branching point in a phylogenetic tree that represents the divergence of two lineages.
Fill in the blank: A __________ is a character shared by a set of species but not present in their common ancestor.
Fill in the blank: A __________ is a diagram that shows evolutionary relationships but does not indicate the amount of evolutionary change.
Fill in the blank: In a phylogenetic tree, the tips of the branches represent __________.
True or False: A paraphyletic group includes all descendants of a common ancestor.
True or False: All branches in a phylogenetic tree are of equal length.
True or False: All phylogenetic trees are hypotheses about evolutionary relationships.
True or False: Homologous structures are used to construct phylogenetic trees because they indicate common ancestry.
