Erwin chargaff observed that the proportions of adenine (a) and thymine (t) bases were always equal, as were the proportion of guanine (g) and cytosine (c). chargaff’s observation suggests which of the following statements?

your answer is "the 1950's"

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

the principle of segregation describes how pairs of gene variants are separated into reproductive cells. from his data, mendel formulated the principle of segregation. we now know that the segregation of genes occurs during meiosis in eukaryotes, which is a process that produces reproductive cells called gametes.