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loris [4]
3 years ago
13

Explain the function/interaction of the repressor and operator in the lac operon.

Medicine
1 answer:
vazorg [7]3 years ago
6 0

Answer:

1 gene controlled by the Lac promoter and a given operator. 24. If the repressor mutant binds the operator variant, GFP expression is decreased; the stronger the binding interaction, the lower the expression. A repressor plasmid library was transformed into competent cells containing a given, single, operator.

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The nurse palpates the anterior fontanel of a newborn and notes that it feels soft. what does this datum indicate to the nurse?
zalisa [80]

The anterior fontanel is a diamond-shaped area where the frontal and parietal bones meet. It closes between 12 and 18 months of age. Vigorous crying may cause the fontanel to bulge, which is a normal finding. A nurse is performing an assessment on a postterm infant.

<h3>What is anterior fontanel?</h3>
  • This is the junction where the 2 frontal and 2 parietal bones meet. The anterior fontanelle stays soft until about 18 months to 2 years of age. Doctors can consider if there is increased intracranial pressure by touching the anterior fontanelle.
  • The fontanel can broaden in the first few months of life,18 and the median age of closure is 13.8 months. By three months of age, the anterior fontanel is secured in 1 percent of infants; by 12 months, it is closed in 38 percent; and by 24 months, it is closed in 96 percent.
  • The fontanelle allows the skull to distort during birth to facilitate its passage through the birth canal and for expansion of the brain after birth. Skull at birth, showing frontal and occipital fonticuli. The anterior fontanelle normally closes between the periods of 12 and 18 months.

To learn more about anterior fontanel, refer to:

brainly.com/question/1538272

#SPJ4

3 0
2 years ago
Smooth ER of a muscle cell:
Maksim231197 [3]

Answer: B. Sarcoplasmic reticulum

Explanation: The sarcoplasmic reticulum is the name given to the organelle in the muscle cell, in charge of the storage and regulation of the intracellular calcium levels. It is the smooth endoplasmic reticulum in muscle cells, it means that it does not have ribosomes in its surface.

Option A. Incorrect. A SARCOMERE is the functional and anatomic unit of the striated muscle (skeletal muscle and heart muscle). This word comes from the greek: <em>sarkos (meat), meros (part). </em>That is reason you could find other structures of the muscle cell with this root (SARCO...).

Option C. Incorrect. "Arcolemma" this word does not exist. But if it refers to SARCOLEMMA, this word means: <em>sarko (meat), lema (cortex) </em>in greek<em>. </em>It is the plasma membrane of the muscle cells.

Option D. Incorrect. The SARCOPLASM, comes from the greek: <em>sarko (meat), plasm (matter). </em>This structure is the citoplasm of the muscle cells.

In conclusion, the word SARCOPLASMIC RETICULUM, refers to a <em>structure of the muscle cell, </em>that in this case, is the RETICULUM or the SMOOTH ER.

5 0
3 years ago
Most bone development after the age of 18 is considered:
snow_tiger [21]

Answer:

B

Explanation:

Ossification: The process of creating bone, that is of transforming cartilage (or fibrous tissue) into the bone. The human skeleton initially consists largely of cartilage which is relatively soft and is gradually transformed into a hard bone during infant and child development.

4 0
3 years ago
The extent to which others in the same situation behave in the same way is known as a) consistency. B) consensus. C) distinctive
Mazyrski [523]

Answer:

B

Explanation:

Consenus  means  to have a general agreement. The situation shown is an example of this defenition.

5 0
2 years ago
Our Account
bezimeni [28]

Specifics from the scenario

Lasix is prescribed along with Accupril to the hypertensive patient because;

  • High blood pressure reading of 150/92 in spite of being on the antihypertensive Accupril for the past four months
  • Bilateral lower extremity edema.  

Explanation:

Blood pressure medications which act as calcium channel blockers like Accupril will widen the constricted blood vessels to allow for more blood and fluid to flow easily.

This sometimes leads to an excess amount of fluid in the circulatory system which gets accumulated in the lower extremities. This leads to edema of the feet, especially in the ankle region.  

To treat this fluid accumulation in the feet, a diuretic class drugs are prescribed as an adjuvant. Loop diuretics like Lasix (furosemide) act by lowering the blood pressure as well as reducing the fluid content by increased urine output.

8 0
3 years ago
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