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Valentin [98]
3 years ago
8

What cell part contains an organism’s genome

Biology
2 answers:
Gre4nikov [31]3 years ago
7 0
Nucleus is the cell part that contains an organism's genome. 
netineya [11]3 years ago
6 0

Nucleus is the answer

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Based on your results in Part A, which of the following statements most appropriately reflects the relative effectiveness of the
Airida [17]

Part A:

Treatment, Dose, Log of number of colonies, Mean.

Control -- 9.0, 9.5, 9.0, 8.9 9.1

Vancomycin 1.0 8.5, 8.4, 8.2 8.4

5.0 5.3, 5.9, 4.7 5.3

Teixobactin 1.0 8.5, 6.0, 8.4, 6.0 7.2

5.0 3.8, 4.9, 5.2, 4.9 4.7

which of the following statements most appropriately reflects the relative effectiveness of the vancomycin treatment, teixobactin treatment, and the control?

a) Teixobactin was significantly less effective than the vancomycin at reducing the number of MRSA colonies relative to the control.

b) Neither teixobactin or vancomycin were effective at reducing the number of MRSA colonies relative to the control.

c)Teixobactin was significantly more effective than the vancomycin at reducing the number of MRSA colonies relative to the control.

d) Teixobactin reduced the number of MRSA colonies about as effectively as did vancomycin relative to the control

Answer: A. Teixobactin was significantly less effective than the vancomycin at reducing the number of MRSA colonies relative to the control.

Explanation: By way of definition, Methicillin-resistant Staphylococcus aureus (MRSA) is a significant cause of health care-associated infections. Vancomycin remains an acceptable treatment option. Though there is an evolution of microbial resistance to vancomycin which posed to be a problem, in particular, within healthcare facilities such as hospitals. While newer alternatives to vancomycin exist, the widespread use of vancomycin makes resistance to the drug a significant worry, especially for individual patients if resistant infections are not quickly identified and the patient continues the ineffective treatment. There has been a welcome increase in the number of agents available for the treatment of MRSA infection for instance the Teixobactin, Linezolid, daptomycin, telavancin and ceftaroline. These drugs have certain differentiating attributes and may offer some advantages over vancomycin, but they also have significant limitations.

Teixobactin was also found to be effective in vivo, when used to treat mice infected with methicillin-resistant S. aureus (MRSA), and Streptococcus pneumoniae. The dose required to achieve 50% survival against MRSA is only 10% of the PD50 dose of vancomycin, an antibiotic typically used for MRSA. However, Teixobactin was reported to be potent in vitro against all gram-positive bacteria tested, including Staphylococcus aureus and difficult-to-treat enterococci, with Clostridium difficile and Bacillus anthracis being exceptionally vulnerable. It also killed Mycobacterium tuberculosis.

Teixobactin is not active against bacteria with an outer membrane such as gram negative pathogens, particularly carbapenem resistant enterobacteriaceae. It is possible from the results, that genes encoding resistance to teixobactin are already present in soil bacteria. Resistance could also arise by mutation after prolonged use of teixobactin in patients. So based on the experiment conducted, Teixobactin was significantly less effective than the vancomycin at reducing the number of MRSA colonies relative to the control.

5 0
3 years ago
Read 2 more answers
Think of a swimming pool with a shallow end and a deep end. The pressure of water on the floor at the shallow end is less than t
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Air gets thinner as we go higher because there are less trees and gets thicker on ground level because of the abundance of vegetation.
Water is not condensed on the surface because it doesn't have any pressure acting on it vertically but gets condensed as we go deeper because its own weight acts as a force.
Both scenarios are similar.
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3 years ago
What abiotic factors characterize marshes?
tamaranim1 [39]
It would be anything that is nonliving for example lake
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If earth did not rotate, global winds would follow what path?
zloy xaker [14]
Perpendicular to the isobars 
<span>to the right of its direction of motion in the N. Hemisphere </span>
<span>to the left of its direction of motion in the N. Hemisphere </span>
<span>parallel to the isobars</span>
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Which of the following is true?
bija089 [108]
D. Because of the columbian exchange, more food was produced and different variety of food and nutrients were introduced into the world's diet
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