Gce Model Questions Vol1 2020 Biology Question 42

Practice objective / multiple choice question 42 from the 2020 Gce Model Questions Vol1 Biology examination.

Gce Model Questions Vol1 2020 Biology Objective / Multiple Choice Hard Difficulty
Question 42 GCE_MODEL_QUESTIONS_VOL1 • 2020 • BIOLOGY • objective

DNA sequencing of three microorganisms shows the following percentages of 16S rRNA gene similarity: organism X is 95% similar to organism Y and 85% similar to organism Z. Taxonomic guidelines state that >97% similarity indicates the same species, >90% the same genus, and >80% the same family. Based on these guidelines, what is the most specific taxonomic rank that organisms X and Y share?

Answer Options

Correct Answer A. genus
B. species
C. order
D. family
Correct Answer
A
Correct Option:
genus

About This Question

This is Gce Model Questions Vol1 2020 Biology Question 42. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Biology examination.

Difficulty level: Hard .

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