Answer:
The correct answer is conservative model.
Explanation:
There are 3 hypothesized DNA replication models: semi-conservative, conservative and dispersive model (see figure). Heavy isotope of nitrogen makes diference when density gradient centrifugation experiment conducted and two diffent bands contaning different isotopes of nitrogen are observed. With one band only containing 14N means bacteria only copies one strand in one replication which supports semi conservative model.
Which of the following plant systems is involved in the process of drawing up nitrogen from the surrounding soil?
Answer: Roots
the purpose of making a cloud inside the bottle is to make us understand how clouds are being formed
Answer:
C
Explanation:
phosphorus is not found in gaseous form and is mainly found as phosphate. it can be found from the breakdown of rocks or decomposition of organisms. so it mainly involves the geosphere and biosphere
Ulirc was the solving view of dreams and analysis