Phylogenetic Relationships
Biology ⇒ Biological Classification
Phylogenetic Relationships starts at 10 and continues till grade 12.
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See sample questions for grade 11
A phylogenetic tree shows that species X and Y share a more recent common ancestor with each other than with species Z. Which two species are more closely related?
A scientist finds that two species share a unique genetic marker not found in any other species. What does this suggest about their evolutionary relationship?
A scientist is comparing the DNA sequences of four species. Species A and B have 2 differences, A and C have 5 differences, and A and D have 8 differences. Which species is most closely related to A?
Describe the importance of an outgroup in constructing a phylogenetic tree.
Describe the role of molecular clocks in phylogenetic analysis.
Explain the difference between homologous and analogous structures with examples.
Explain why convergent evolution can complicate phylogenetic analysis.
Explain why phylogenetic trees are considered hypotheses.
What is a clade?
What is the difference between a rooted and an unrooted phylogenetic tree?
What is the main purpose of constructing a phylogenetic tree?
