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.
Oldest living cat. The average life expectancy of an indoor cat is between 9 to 15 years. The Guinness World Records lists the oldest living cat is a Pinky, a cat living in Hoyt, Kansas and owned by Linda Anno. Pinky was born on 31st October, 1989, making her 24 years old (as of 2013).