If both beta globin genes code for the sickle protein, the person has sickle cell disease. Sickle cell disease is determined at conception, when a person acquires his/her genes from the parents. Sickle cell disease cannot be caught, acquired, or otherwise transmitted.
For every year of the cat's life after age 2, one cat year equals approximately 4 human years. This is based on how cats mature - for example at around 10 - 11 human years most cats start to slow down quite a lot... This is when they're getting to about 60 years old in Kitty terms.
Still, it's worth it to get an idea of how old your cat is in human years. Follow the four steps below: Allow 15 human years for the first year of your cat's life. 1  Add nine years for the second year. A two-year old cat will approximate 24 human years. 2  Add four human years each for successive years of his life. 3  When all else fails, refer to the accompanying chart.