What is semi-conservative representation?

The semi-conservative model, in which each strand of DNA serves as a template to make a new, complementary strand, seemed most likely based on DNA's structure. The models were tested by Meselson and Stahl, who labeled the DNA of bacteria across generations using isotopes of nitrogen.

Explanation:

https://www.khanacademy.org/science/biology/dna-as-the-genetic-material/dna-replication/a/mode-of-dna-replication-meselson-stahl-experiment?sa=X&ved=2ahUKEwjyq4383MzxAhXYr54KHebsCoMQ9QF6BAgEEAI

It would look like this ^

Hope this helps if im wrong just tell me

precisely the author keeps the interest of readers not describing clearly the   kind of relationship in giselle's family. by doing this, readers had to imagine and assume how it was.   instead, the author described better scenes with dark star and the influence of books about horses in giselle's life and actions.   also the fact that she broke her arm but not referring to it in detail leads the readers to imagine and guess what could have occurred.