If chromosomes are coiled structures made of deoxyribonucleic acid and proteins, then chromosomes are coiled structures made of proteins and what?

Answer choices:
- solid, liquid, gas
 - density
 - Something that causes allergies
 - deoxyribonucleic acid
 - It helps them survive
 - inheritance
 - blood cells
 - allow growth

 

    deoxyribonucleic acid      