- 97% of all the water on the earth is salt water, which is not suitable for drinking.
- Only 3% of all the water is fresh water, and only 1% is available for drinking.
- 2% of the available freshwater sources is locked in ice caps and glaciers.
With growing population rates and such a small percentage of all the water on earth, it only makes sense that we must preserve and conserve this precious resource.
Correct answer - Replace Thymine (T) with uracil (U) in the DNA molecule.
Why? - As the RNA polymerase continues down the strand of DNA, more nucleotides are added to the mRNA, thereby forming a progressively longer chain of nucleotides. This process is called elongation. DNA (top) includes thymine (red); in RNA (bottom), thymine is replaced with uracil (yellow).
Advise them about the genetic disorder and the percentage chance of then passing on that disorder to their children. Also the could advise them as to steps that can be taken in the event they do have children and they have the disorder.<span />
