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.
A 10 year old cat is around 56 in human years, at 15 your cat is like a 75 year old person, while 20 cat years equal 96 human years. These are only guidelines and each catâs development may differ according to diet, exercise and hereditary factors. Some purebred cats donât reach maturity until the age of 3 or 4.