DNA Structure and Replication
Nucleosome is

an octamer of four histones with H1 protein
an hexamer of three histones with H1 protein
an octamer of four histones without H1 protein
an hexamer of three histones without H1 protein

ANSWER DOWNLOAD EXAMIANS APP

DNA Structure and Replication
Taylor, Woods and Hughes labeled Vicia DNA by allowing new DNA synthesis in the presence of radioactive thymine. After DNA replication (S phase of the cell cycle), it was observed that

neither chromatid was labeled
both chromatids of a chromosome were labeled
only one chromatid of a chromosome was labeled
both (a) and (b)

ANSWER DOWNLOAD EXAMIANS APP