Answer by Ken Saladin, Former professor of histology (microscopic anatomy)
Source: https://www.quora.com/Biology-GCSE-In-the-text-book-picture-of-a-chromosome-it-appears-as-an-X-like-structure-Is-that-a-single-chromosome-or-is-that-a-pair-of-chromosomes-one-from-each-parent-Have-I-got-23-X-like-structures-or-46-in-each/answer/Ken-Saladin?ch=15&oid=1477743693533872&share=0a5f595b&srid=h1AAqA&target_type=answer