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number because a normal karyotype has 22 autosomes and 1 pair of s€x chromosomes

(sorry if I'm wrong)

The correct answer is that they can identify on a karyotype - changes in chromosome number easily.

In addition to adjustments in chromosome variety, karyotypes also can screen greater diffused adjustments in chromosome structure. In effect, the ordinary banding sample of a chromosome gives a "bar code" that may be translated right into a map of the chromosome.

What is the role of karyotype?

A karyotype is a check to discover and compare the size, shape, and variety of chromosomes in a pattern of frame cells. Extra or lacking chromosomes, or extraordinary positions of chromosome pieces, can reason troubles with a person's growth, development, and frame functions.

Hence concluded that karyotype can identify changes in chromosome number.  

To learn more about karyotype  refer to the link :

https://brainly.com/question/16665635