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3 years ago

Describe in detail the composition of a bacteriophage.

2 answers:

6 0

Answer:Like all viruses, phages are simple organisms that consist of a core of genetic material (nucleic acid) surrounded by a protein capsid. The nucleic acid may be either DNA or RNA and may be double-stranded or single-stranded.

Explanation:

lorasvet [3.4K]3 years ago

4 0

The answer is what the person said before me

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Which of the following does NOT involve the hypothalamic-pituitary axis of hormone function regulation?

konstantin123 [22]

Answer:

(D). oxytocin.

Explanation:

The hypothalamic-pituitary axis can be defined a pathway that plays a central role in regulation of various endocrine glands. Hormones released from hypothalamus stimulates pituitary gland, which in turns secrete pituitary hormones to regulate release of hormones from other endocrine glands.

Regulation of growth hormone (somatotropin), cortisol (adrenal hormone), prolactin, and T3 (thyroid hormone) is done by hypothalamic-pituitary axis.

Oxytocin is a peptide hormone, which is synthesized by hypothalamus and secreted by posterior pituitary gland. However, level of oxytocin is regulated by positive feedback in loop, in which hormone itself regulates its release and does not involves regulation by hypothalamic-pituitary axis.

Thus, the correct answer is option (D).

6 0

3 years ago

Select the correct statement.

Dominik [7]

Answer:

D. Word roots contain the basic meaning of the

term.

Explanation:

5 0

2 years ago

In a case-control study of obesity and adult-onset asthma, controls are matched to cases on the basis of race and gender.

Bess [88]

Answer: d. Confounding

Explanation:

In the context of a scientific study such as this one, a confounding factor is one that has influence on both the exposure and event variable(s), which may lead to over- or underestimation of the direct relationship between them (if any).

For instance: In this example, researchers may have had reason to believe that male gender is associated with both higher risk of obesity (the exposure variable) and adult-onset asthma (the event variable). If gender is not taken into account, one may claim that the finding of an association between obesity and asthma is simply an artifact due to the high proportion of male patients (likely to present with both). <em>Controlling</em> for that variable (such as by matching, as in this example) allows researchers to test for this hypothesis.

7 0

3 years ago

How can a pregnant woman’s genetics and lifestyle choices affect their unborn child’s brain development? Can mothers alter lifes

vagabundo [1.1K]

Answer:

Doctors believe that diet, medical care, and other lifestyle decisions affect fetal development later in pregnancy. Certain genetic factors can influence things like fetal growth, but this is most shown in the first trimester. Doctors and nutrition experts suggest improving nutritional health several months to a year before planning to become pregnant. Improper nutrition, stress, and overreliance on caffeine, nicotine, or other substances can sometimes impact fertility.

Explanation:

4 0

3 years ago

Which findings would the nurse expect to find when assessing an adult client with community-acquired pneumonia?

tensa zangetsu [6.8K]

<u>Dyspnea</u><u>, Crackles and Productive Cough</u> would the nurse expect to find when assessing an adult client with community-acquired pneumonia.

<h3>What are the causes and symptoms of pneumonia?</h3>

Infection that causes swelling and fluid buildup in one or both of the lungs' air sacs.

The air sacs may get clogged with fluid or pus in pneumonia. Anyone can be at risk of dying from the virus, but newborns, kids, and adults over 65 are more vulnerable.

The signs include a cough that produces pus or phlegm, fever, chills, and difficulty breathing.

A variety of pneumonias can be treated with antibiotics. Vaccines helps to prevent some types of pneumonia.

Pneumonia can be brought on by bacteria, fungi, and viruses. Respiratory syncytial virus (RSV), influenza, and SARS-CoV-2 are major causes of viral pneumonia in the United States (the virus that causes COVID-19). Streptococcus pneumoniae is frequently responsible for bacterial pneumonia (pneumococcus).

To know more about RSV visit :

brainly.com/question/28282926

#SPJ4

8 0

1 year ago