Answer:
Amount of XY or XX chromosomes in the sperm used to fertilize the egg
Explanation:
If you're female the sperm had XX chromosomes
If you're male the sperm had XY chromosomes
It's AUC.
Thymine is substituted by Uracile in RNA and it's complementary to Adenine. Citosine is complementary to Guanine
I believe it is C.
x -y =4 this is the answer