Each (both large and small) colony is carefully counted (using magnifying colony counter if needed). Each colony represents a “colony-forming unit” (CFU). For accurate counts, the optimum count should be within the range of 30-300 colonies/plate. To insure a countable plate a series of dilutions should be plated.
The answer u r looking for is- Erwin Chargaff. ;)
Answer:
<em>Mechanism, Evidence ... - Toppr</em>
<em>Mechanism, Evidence ... - TopprThe transportation occurs in the direction of the source to sink. Transport of organic solutes from one part of the plant to the other through phloem sieve .</em>