If more airplanes and cars are used (both of which burn fuels) carbon levels will decrease ?

If the question is "would the carbon levels decrease?" then they would not, they would increase.

Explanation: More airplanes and cars would burn fossil fuels, and release more carbon dioxide, increasing carbon levels, not decreasing them.

Answer

The location of a gene found here is at the short arm of chromosome 17 at the specific point of the short arm of 23.6 on the chromosome.

Meaning of the address 12p7.2

12- chromosome 12

p- short arm of chromosome 12

7.2- exact point of the short arm on chromosome 12. The position of the gene on the p or q arm. The position of a gene is based on a distinctive pattern of light and dark bands that appear when the chromosome is stained in a certain way.

These addresses allow scientist and doctors to have a quick and easy way to reference specific genes to where they are which gives insight into their location.