DNA Structure and Replication
What bands will be observed in a cesium chloride gradient after two rounds of replication?

One medium and one heavy band
One medium band
One light and one medium band
One light, one medium and one heavy band

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

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

ANSWER DOWNLOAD EXAMIANS APP