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.
Cat age calculator. The first year of a cat's life is equivalent to around fifteen human years. It will continue to grow and develop in its second year although as it ages its growth slows, so this second year equates to just nine human years. At two, a cat is approximately twenty-four human years old. From three onwards, one year of feline life is equal to about four years of human life.