Answer:
Since high ethanol is a major stress during ethanol fermentation, ethanol-tolerant yeast strains are highly desirable for ethanol production on an industrial scale. A technology called global transcriptional machinery engineering (gTME), which exploits a mutant SPT15 library that encodes the TATA-binding protein of Saccharomyces cerevisiae (Alper et al., 2006; Science 314: 1565-1568), appears to be a powerful tool. to create ethanol tolerant strains. However, the ability of the strains created to tolerate high ethanol content in rich media remains to be demonstrated. In this study, a similar strategy was used to obtain five strains with higher ethanol tolerance (ETS1-5) of S. cerevisiae. When comparing the global transcriptional profiles of two selected strains ETS2 and ETS3 with that of the control, 42 genes that were commonly regulated with a double change were identified. Of the 34 deletion mutants available in an inactivated gene library, 18 were sensitive to ethanol, suggesting that these genes were closely associated with tolerance to ethanol.
Explanation:
Eight of them were novel and most were functionally unknown. To establish a basis for future industrial applications, the iETS2 and iETS3 strains were created by integrating the SPT15 mutant alleles of ETS2 and ETS3 into the chromosomes, which also exhibited increased tolerance to ethanol and survival after ethanol shock in a rich medium. Fermentation with 20% glucose for 24 h in a bioreactor revealed that iETS2 and iETS3 grew better and produced approximately 25% more ethanol than a control strain. The performance and productivity of ethanol also improved substantially: 0.31 g / g and 2.6 g / L / h, respectively, for the control and 0.39 g / g and 3.2 g / L / h, respectively, for iETS2 and iETS3.
Therefore, our study demonstrates the utility of gTME in generating strains with increased tolerance to ethanol that resulted in increased ethanol production. Strains with increased tolerance to other stresses such as heat, fermentation inhibitors, osmotic pressure, etc., can be further created using gTME.
Answer:
Elephantiasis is an infectious disease in which blockage of the circulatory ... parasitic roundworms results in a dramatic swelling of the tissues in the lower half of the body. What region of the circulatory system is most likely blocked by these small, ... bodiesE.baroreceptors in the arch of the aorta and in the carotid arteries 27.
Answer:
Psychoanalytic, trait, humanistic, and social cognitive theories.
Explanation:
Psychoanalytic, trait, humanistic, and social cognitive theories are the four main theories of personality. These theories of personality provides information about the changes that occurs in the personality of an individual. Psychoanalytic personality that guides psychoanalysis which is a clinical method for treating psychopathology. Humanistic theory of psychology is a perspective that stress on looking at the whole individual and force on the concepts such as free will, self-efficacy, and self-actualization.
Vestigial organs have long been one of the classic arguments used as evidence
for evolution. The argument goes like this: living organisms, including man,
contain organs that were once functional in our evolutionary past, but that
are now useless or have reduced function. This is considered by many to be compelling
evidence for evolution. More importantly, vestigial organs are considered by
some evolutionists to be evidence against creation because they reason a perfect
Creator would not make useless organs.
I just know this much about vestigial organs, maybe I helped you:))
The answer is false
Both adolescence males and females have growth spurts