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 cat is considered to be senior when they are 8 to 10 years of age. Cats over 12 years of age are considered geriatric. To all those cats out there!, The longest a cat has ever lived is 34 years. This cat above is 2 months old.