Answer:
-pGLO DNA bacteria will be gram- negative bacteria. +pGLO DNA bacteria will be gram positive bacteria.
+pGLO DNA bacteria will have a thick peptidoglycan layer and no outer lipid membrane.
-pGLO DNA bacteria will have a thin peptidoglycan layer and also an outer lipid membrane will be present.
The basic difference between the two will be the presence or absence of the outer lipid membrane.
Answer;
-Matrix
Explanation;
Matrix is used to maintain artificial wall around the tooth preparation.
Cavity preparation is the mechanical alteration of a tooth to receive a restorative material which will return the tooth and area to proper form, function and esthetics.
-Objectives of cavity Preparation: remove all defects and give the necessary protection to the pulp, locate the margins of the restoration as conservatively, form the cavity so that under the forces of mastication the tooth or the restoration will not be displaced and also Allow for the esthetic and functional placement of a restorative material.
A one-use item is disposable, because it is disposed after its use.
Answer:
Mutation
Explanation:
The main cause of variation within a population is usually through genetic mutation.
Mutation is the alteration of the genetic sequence within an organism. It often lead to formation of new genetic patterns and codes.
Most times, environmental influences are paramount to causing genetic mutation within a population.
Other times, it might be due to competition and some other internal factors.
Mutation can be transferred from parents to offspring in most cases.
