Answer:
The correct answer is - scanning electron microscope.
Explanation:
SEM or a scanning electron microscope is that produces an image by an electron beam over the sample surface to scan. The electrons of the beam interact with the sample producing various signals that allow providing information about the composition and topography of the individual sample. The magnification of the SEM is in between 20X to 30000X
Thus, the correct answer is - scanning electron microscope.
To answer your question: the nucleus has a membrane.
Transgenic organisms are those that have had their genomes altered by external means. These organisms are found in applications of genetic engineering, but they are only useful if the inserted gene is expressed in the organism.
An example of a transgenic organism may be a rat with the gene for hemoglobin from a rabbit. This rat is only useful if it indeed does produce rabbit hemoglobin in its blood due to the inserted gene.
The word in the blank should be 'segregation' :)
A, sodium.....................................
