Biochemistry - DNA Structure and Replication - Discussion
Discussion Forum : DNA Structure and Replication - Section 1 (Q.No. 6)
6.
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
Discussion:
5 comments Page 1 of 1.
Emma. said:
9 years ago
Whenever a parent DNA separates, we get two daughter strands. Therefore, since the DNA was first synthesised in radioactive thymine before undergoing replication, then both chromatid would be labelled.
Devi said:
9 years ago
Only one strand will be label.
Israr said:
1 decade ago
Only one/either chromated of chromosome will be labelled.
Pranjiv Goswami said:
1 decade ago
The experiment was carried out to prove semiconservative replication of DNA. That means only one strand/chromatid would be labeled. Please explain if there is any other angle.
B. Ramesh said:
1 decade ago
See. DNA in the chromosome was allowed for replication in the presence of radioactive thymine means one strand of DNA will be labelled. After replication also, that strand only having labelled thymine with association of newly formed strand in chromosome. This labelled portion may be present in either of any chromatids. So how it possible to have both chromatids that were labeled ?
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