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

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

ANSWER DOWNLOAD EXAMIANS APP

DNA Structure and Replication
In DNA, nucleotides are covalently joined together by

3', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain
2', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain
2', 3' phosphodiester bonds to form a repetitive sugar-phosphate chain
3', 4' phosphodiester bonds to form a repetitive sugar-phosphate chain

ANSWER DOWNLOAD EXAMIANS APP