Question

how can the chromosomes be identified?

Answer 1

Individual chromosomes are identified by their lengths and staining patterns. Two normal human karyotypes look the same, but might have slightly banding patterns. What is done if a defective karyotype is discovered depends on how defective it is. Some conditions that are shown by abnormal karyotypes include Patau, Edward, and Down syndromes. Turner, Klinefelter's, and Triple X syndromes are abnormal numbers of sex chromosomes

Answer 2

Answer:

In human beings, the individual chromosomes are  identified by their lengths, position of centromere and  banding pattern on staining.