The Principle of Superposition was written by <span>Nicholas Steno.</span>
Answer:
An Oc mutation on the bacterial chromosome can affect the expression of structural genes on a F plasmid.
Explanation:
An Oc mutation is a mutation in which operator of an operon is constitutively active i.e. repressor fails to bind the operator which leads to unregulated gene expression.
An Oc mutation do not affect the expression of structural genes on F plasmid because <u>an operator is a cis regulatory element and therefore it can only affect the genes which are located on the same DNA</u>. F plasmid genes are located on the plasmid not on the main chromosome of the prokaryotes while tryptophan or lac operon system is in the main chromosome that is why an Oc mutation will not impact genes on plasmid.
This is when a daughter cell divides into 2 different cells . So basically the dividing of cells to offspring from the parent.
<span><span>A correct statement regarding the usage of the microscope is that </span>you should always begin with the lowest power objective lens before going to the higher power, make sure that the lens will not touch the slide. There are instructions on how to properly use the microscope and handle them with care. </span>
That's true because the basic functions of a multi-cellular plant occur in the cell and like any other cell, unicellular alga are also cells thus basic functions such as respiration, excretion, growth occur in both multicellular organisms as well as unicellular organisms
