What is the diploid chromosome number for a karyotype containing 47 chromosomes? (The person has trisomy 8 syndrome)

The diploid number of chromosome for a karyotype containing 47 chromosomes will be 23 XYX8.

Explanation:

In Trisomy 8 syndromes the individual has three copies of number 8 chromosome.

The karyotype is 23 XYX8.

Usually the normal organism has 2 number of eighth chromosome.

The trisomy occurs because of non disjunction in meiosis in the germ cells.