Tube A will produce a higher number of CFUs on the plate
Explanation:
This procedure is called dilution: when a loop of the previous (and more concentrated culture; <em>tube A</em>) is diluited in new culture medium, few microorganisms disperse in the new liquid. This results in a less concentrated culture (<em>tube B</em>).
When drops of this diluited culture (tube B) are spread in a plate, microorganisms can grow far from each other and iniciate an isolated colony. A lower number of colonies will grow from this tube.
Results of the spread method of isolation: with enough dilution, each colony is generated from a single microorganism. Then, all the microorganisms in a colony have grown from a single cell and they have the same genetic material (they are <em>genetically identical</em>)
In a eukaryotic cell, the ribosomes are found in the nucleus but since a prokaryotic cell doesn't have a nucleus, the ribosomes are floating freely in the cytoplasm. Hope this helped :)
