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katrin2010 [14]
2 years ago
12

During which phase do the chromosomes make copies of themselves so that there are two of each one?

Biology
1 answer:
SashulF [63]2 years ago
4 0

Answer:

The beginning and majority of the time is known as Interphase. Interphase is 80% of the total cycle and is where the cell does most of the work in replicating organelles, chromosomes, and preparing to undergo Mitosis which is the actual splitting process where one cell becomes two. During Interphase there are 3 major steps, G1, S, and the G2 phase.

Explanation:

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Thermophilic anaerobic bacteria are highly insensitive to ethanol. Scientists demonstrate that one of their membrane proteins X
BARSIC [14]

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.

7 0
3 years ago
Factorsthat determines soil texture? A. Glacial till B. Particle sizes C. Mineral content D. Water composition
ki77a [65]

D. Water composition

7 0
3 years ago
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In this tectonic situation seen here, the Pacific plate has been grinding horizontally past the North American plate for over te
pochemuha

C) transform

Explanation:

The San Andreas fault is a transform fault margin as a result of the Pacific plate moving horizontally with the North American plate.

There  are different types of plate interactions.

  • At a convergent margin, plates comes together.
  • At a divergent margin, plates moves away from one another.
  • At a transform margin, plates moves past one another horizontally.

The San Andreas is one of those margins in which plates moves past one another horizontally. This is a typical transform margin resulting in series of earthquake activities on the surface.

Learn more:

lithosphere brainly.com/question/9582362

#learnwithBrainly

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3 years ago
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Gwar [14]
Concentration gradient, size of the particle, and temperature are all factors
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2 years ago
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Answer:

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