- #1
1MileCrash
- 1,342
- 41
According to my biology textbook, calico cats get their fur color mosiac from the random deactivation of one of their X chromosomes, by condensing them into barr bodies and displaying either the maternal or paternal X chromosome fur color only. IE each cell randomly deactivates either X and displays the remaining phenotype.
If this deactivation were truly random, why would their be black and yellow "patches" of fur on the cat? If it were truly random, and each had an equal chance, I would expect a cat that almost consisted of one fur color to the human eye because of an equal distribution and number of cells that deactivated maternal vs. paternal X and vice versa.
If this deactivation were truly random, why would their be black and yellow "patches" of fur on the cat? If it were truly random, and each had an equal chance, I would expect a cat that almost consisted of one fur color to the human eye because of an equal distribution and number of cells that deactivated maternal vs. paternal X and vice versa.