What was Pierre curie working as when Marie met him?

“Marie stayed in France after she met a FRENCH SCIENTIST (physicist), Pierre Curie, in the spring of 1894. Pierre was the head of a laboratory at the School of Industrial Physics and Chemistry.”

Okay, biology isn't exactly my strongest subject (it never has been), but i'm pretty sure the answer is nucleotides. dna is made up of nucleotides. each nucleotide contains a phosphate group, a sugar group, and a nitrogen base. there are four different nitrogen bases: adenine (a), thymine (t), guanine (g), and cytosine (c). a always pairs with t, and g always pairs with c.