Help:P5230

Help page for chromosome count (P5230) . This help page will be included in Property talk:P5230. Please be careful editing it not to break the included page.

Typical value for this property is the most frequent chromosome count in typical body cell in normal adult individual of a species. For example at Homo sapiens (Q15978631):

chromosome count	46 edit 0 references add reference
		add value

As exceptional cases, there are some types of variation in chromosome count. Here are instructions for that.

• 1. Sexual difference. Some species have different chromosome count between male and female. This happens in certain sex-determination system, for example haplodiploidy or X0 sex-determination system. In such case, use applies to part (P518) with male organism (Q44148) or female organism (Q43445), like Jack jumper ant#P5230.

chromosome count	1 edit applies to part male organism 0 references add reference 2 edit applies to part female organism 0 references add reference
		add value

• 2. Life cycle difference. There are species which have different characteristic "generations" having different chromosome count through biological life cycle. This process is known as alternation of generations. In such case, use applies to part (P518) with, for example, gametophyte (Q189951) or sporophyte (Q647173), like [put example species here].

chromosome count	10? (we need example) edit applies to part gametophyte 0 references add reference 20? (we need example) edit applies to part sporophyte 0 references add reference
		add value

• 3. Cell type difference. There are different chromosome count between cell type (Q189118). For example, red blood cell (Q37187) has 0 chromosome. cancer cell (Q4118072) has various number. For this property, use chromosome count for typical body cell (e.g. In human, use 46)
• 4. Variations in disease or syndrome. For example, Down syndrome (Q47715) has 47 chromosomes. This kind of data is stored at disease or syndrome item page like Down syndrome#P5230, but not species page. Because there are many kind of disease or syndrome which has chromosome count variation.