Neco 2018 Biology Question 27

Practice objective / multiple choice question 27 from the 2018 Neco Biology examination.

Neco 2018 Biology Objective / Multiple Choice Hard Difficulty
Question 27 NECO • 2018 • BIOLOGY • objective

Four species (A, B, C, D) have the following pairwise DNA sequence similarity percentages: A‑B: 92 %, A‑C: 85 %, A‑D: 80 %, B‑C: 88 %, B‑D: 78 %, C‑D: 84 %. Using the UPGMA clustering method (average linkage), construct a cladogram and answer: (i) Which two species are most closely related? (ii) What is the average similarity between the cluster formed by these two species and the next closest species? Provide the similarity value to one decimal place.

Answer Options

A. A and C; 84.5 %
B. B and C; 86.0 %
C. A and B; 85.0 %
Correct Answer D. A and B; 86.5 %
Correct Answer
D
Correct Option:
A and B; 86.5 %

About This Question

This is Neco 2018 Biology Question 27. It is one of the objective questions from the 2018 Neco Biology examination.

Difficulty level: Hard .

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