Explanation:
Gram staining is a widely used technique designed to distinguish between the bacteria on the basis of the composition of the cell wall of the bacteria.
The basis of differentiation is the color of the bacteria they attain after staining technique is performed that is gram-positive bacteria remain deep blue in color while gram-negative bacteria appear pinkish-red in color.
If the culture of the bacteria on which the test to be performed is of more age that is more than 24 hours of age then the bacteria cells lose their ability to retain the stain mainly the gram-positive bacteria. Also, the culture gets damaged after 24 hours.
Thus, fresh cultures are used for staining.
Notify your teacher/instructor that you have spilled because it may need to be cleaned a specific way for safety or something like that
Genetic factors are the determinant of social and biological traits. Aptitude is a genetic factor that can influence the personality of individuals.
<h3>What are the factors influencing personality?</h3>
Genetic factors can influence the overall personality of an individual as they reflect the attributes and the characteristics of the person.
Aptitude is related to fitness, and the ability born naturally for doing something. It is generally acquired and inborn and is passed from the genetics of the parents to their offspring.
Other factors like love, support and security are not hereditary factors that impact the character of a person and are not genetic dispositions.
Therefore, option D. <u>aptitude </u>is correct.
Learn more about genetic factors here:
brainly.com/question/1194256
The level of organization that is the highest is: Organism, Organ System, Organ, and Tissue.
C would be you're answer, it is the "highest" out of all of them.
Answer:
A geneticist has devised a strategy to study protein translocation into the endoplasmic reticulum (ER) in yeast cells. She is interested in two different signal sequences that are thought to operate via slightly different translocation mechanisms. Using genetic engineering, she has fused the first signal sequence to a protein whose cytosolic expression is absolutely necessary for cell survival in the selective medium, but is inactive when in the ER. In the same cell, she has also fused the second signal sequence to a toxic protein whose cytosolic expression leads to cell lysis but is harmless when in the ER. Whereas wild-type cells undergo lysis upon the expression of these fusion proteins, she has been able to identify viable mutants, each of which has a loss-of-function mutation in a gene encoding a protein involved in membrane translocation. The products of these genes are probably ...
Explanation:
Involved in the transport of proteins with the first signal sequence but not the second one.