help me i will give you all 30 point

If a DNA strand consisted of 30% T, what percent A would it have?


If a DNA strand consisted of 30% T, what percent G would it have?


If a DNA strand consisted of 10% G, what percent T would it have?


If a DNA strand consisted of 15% A, what percent G would it have?


Why is DNA important in determining the uniqueness of an organism?