Various Streptococci and Lactobacilli were traditionally grouped together as lactic acid bacteria because of their characteristic fermentation. Most of them were found to have a DNA guanine plus cystosine (G + C) content of approximately 40%, but one of them had a G + C content of 58%. Should this organism remain in the same genus as the rest of the bacterial species? Explain your answer.

Answers

Answer 1

Answer:

Yes! it should remain in the same genus...

Explanation:

Although most of them have a 40% GC content but some species of for example lactobaccilus may have more GC than that e.g., Lactobacillus delbrueckii has a GC content of 62% while Lactobacillus fermentum has a GC content of 63% and both of them also belong to the same genus. So, it should remain in same Genus classification.


Related Questions

Mary is comparing light potato chips to regular potato chips. What is the difference? a. ​The light potato chips are lower in weight. b. ​The light potato chips are lighter in texture. c. ​The light potato chips are lighter in color. d. ​The light potato chips have been cooked in olive oil. e. ​The light potato chips are lower in calories.

Answers

Answer: Option E

Explanation:

When regular chips are compared with the light chips then the comparison is made between calories that both the chips has in it.

The regular chips will have more calorie in it and the light potato chips will have less calories in it. Potatoes are fried in oil and it gains a lot of calories because of the being fried.

The light chips are usually not fried and are usually baked so there is a negligible amount of oil used in this process which makes it more fit to be consumed and has less calories in it.

Final answer:

The term 'light' in light potato chips primarily refers to them being lower in calories compared to regular potato chips, offering a healthier alternative by altering the cooking process or ingredients.So,option e. ​The light potato chips are lower in calories is correct.

Explanation:

The question "Mary is comparing light potato chips to regular potato chips. What is the difference?" addresses differences in the properties or characteristics of light versus regular potato chips. The correct answer is e. ​The light potato chips are lower in calories. This is because light potato chips are typically designed to offer a healthier alternative to regular potato chips by reducing the calorie content, which is often achieved through changes in the cooking process or ingredients. For instance, they might be baked instead of fried, use a different kind of oil, or incorporate less salt and seasoning, contributing to lower calorie content.

While the weight, texture, color, and cooking oil can indeed vary between different brands or types of chips, the designation 'light' specifically refers to a lower calorie content. This distinction is especially relevant in a health context, considering the nutritional implications of consuming high-calorie snack foods.

By dramatically reducing her daily caloric intake, Marilyn plans to reduce her normal body weight by 10 to 15 percent. Research suggests that after three or four weeks of sustained dieting, Marilyn will a decrease her number of fat cells. b experience a decrease in her feelings of hunger. c have a lower set point for body weight. d have a lower resting metabolic rate. e have a lower fat cell count.

Answers

Final answer:

After three to four weeks of sustained dieting, Marilyn is most likely to experience a lower resting metabolic rate. Her body's adaptation to the reduced calorie intake results in a more efficient use of energy, making further weight loss more challenging. Exercise can mitigate this effect by increasing metabolic rate.

Explanation:

By dramatically reducing her daily caloric intake, Marilyn plans to lose a significant percentage of her body weight. However, research suggests that after three or four weeks of sustained dieting, the most likely outcome for Marilyn is d) have a lower resting metabolic rate. When individuals reduce their calorie intake significantly, the body adjusts by lowering its basal metabolic rate (BMR), to conserve energy. This adaptive response can make further weight loss more difficult, as the body becomes more efficient at using the energy it does receive.

Moreover, rather than experiencing a decrease in fat cell count, the fat cells tend to decrease in size but remain constant in number. This aspect can contribute to the common experience of regaining weight after ending a diet. It's also important to note that while dieting can cause initial weight loss, incorporating exercise can be beneficial as it raises the metabolic rate even when resting, potentially aiding the weight loss process.

JB is a 67 year-old man who works as a driller in the oil fields, has a history of coronary artery disease (CAD) and has developed tachycardia. He has a history of asthma and is a chronic smoker. Which of the following medications would be the most appropriate to lower his heart rate?propranololA. ClonidineB. metoprololC.DobutamineD. Prazosin

Answers

Answer:

The correct answer is - option B. metoprolol.

Explanation:

The beta blocker drugs are drugs helps in coronary artery diseases as well as hypertension. Propranolol and metoprolol are two best beta blocker drugs used in the tachycardia .

The mechanism of the the beta blockers is to lower the pressure on the walls of the arteries to lower the hypertension.  The nurse need to provide higher dose of beta blockers.

Thus, the correct answer is - option B.  metoprolol.

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