Question 5

Phylum, order, genus, species is the correct set for characteristic chromosome number.

The characteristic chromosome number is best represented by the hierarchy of biological classification, with phylum being the broadest category and species being the most specific. Therefore, the sequence of phylum, order, genus, and species reflects the complete set of chromosomes as it moves from general to specific.

A) Genus, order, species, phylum

This option incorrectly starts with genus, which is a more specific category than phylum. The hierarchy should begin with the broader category of phylum, making this sequence inaccurate for representing the characteristic chromosome number.

B) Order, phylum, species, genus

This arrangement also misplaces the categories by starting with order before phylum, which is less specific. The structure fails to reflect the correct hierarchy necessary for identifying chromosome numbers in a biological context.

C) Species, order, phylum, genus

This choice begins with species, which is the most specific classification. The sequence is incorrect because it does not follow the hierarchical order from broad to specific, which is essential for accurately representing characteristic chromosome numbers.

D) Phylum, order, genus, species

This option correctly lists the biological classifications in the appropriate hierarchical order from the broadest to the most specific category. It accurately reflects how characteristic chromosome numbers are organized in biological taxonomy.

Conclusion

Option D is definitively correct as it maintains the proper hierarchy of biological classifications, starting from phylum and moving to species. The other options fail to follow this necessary order, making them unsuitable for representing characteristic chromosome numbers accurately.