What is a karyotype? a. a system of classifying cell nuclei b. a unique combination of chromosomes found in a gamete c. the set of unique physical characteristics that define an individual d. a display of every pair of homologous chromosomes within a cell, organized according to size and shape e. the collection of all the mutations present within a genome

Option (d).

Explanation:

Karyotype may be defined as the process of the determining of the chromosome complement of the individual organism. The complete set of an organism's chromosome can be determined by karyotype.

The karyotype displays the each and every pair of homologous chromosome. The chromosomes are organised according to their shape and size. The abnormal chromosome can easily be determined by the karyotype.

Thus, the correct answer is option (d).