Umiejętności z tego działu sprawdza 37 zadań wzorowanych na arkuszach IB z lat 2022–2026. Dział pojawia się w 30 z 54 arkuszy w bazie.
An invented time-scaled tree compares ten related beetle species. (i) Identify the two species with the most recent divergence and give a reason. (ii) Suggest why comparing DNA base sequences can distinguish relationships that are missed by comparing amino…
Inherited information is encoded in DNA and expressed in phenotypes. (a) Draw a DNA segment containing two base pairs. Label its nucleotide components and the interactions between the bases. (b) Describe how whole-genome sequencing can be used to infer…
Which tree represents the three-domain classification supported by ribosomal RNA comparisons? A. Tree A B. Tree B C. Tree C D. Tree D
Deduce whether these data establish that Pan paniscus is more closely related to Gorilla gorilla than either is to humans.
Explain how comparing DNA can help construct a cladistic classification.
Outline the meanings of root and node in a cladogram.
Discuss using protein amino-acid sequences to construct cladograms.
Identify another type of evidence suitable for constructing a cladogram.
Outline how parsimony is used to choose among candidate cladograms.
Biologists use inherited similarities and differences to investigate population change and relationships. (a) Describe how homologous structures provide evidence for evolution. (b) Outline the assumptions and use of Hardy–Weinberg calculations in a population…
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