PMAT
Prophase - chromosome form
Metaphase - chromosomes align at middle
Anaphase - chromatids pull apart
Telophase - two nuclei
They are at two opposite poles during Anaphase
Answer:
The correct answer is - option e.)
Explanation:
The experiment that was performed by Meselson and Stahl was created to prove that DNA replication is a semiconservative process.
When Bacteria grow on 15N media they incorporate the isotype of nitrogen and after few generations, the culture moved to 14N media where it incorporates as they replicate in semi-conservative mode and one DNA strand comes from the Parent DNA.
The right option for question one is Option (e) Run as one band, at a position expected for DNA containing a 14N:15N ratio equal to 1.
When a pollutant is removed from the air by a natural process, it ends up somewhere else.
