Dna replication is called semiconservative because _______________ of the original duplex appears in the duplex formed in replication.
2 months ago
Solution 1
2 months ago
HALF.. This is a form of replication where two copies were produced each will contain one of the original strand and the other is a new copy. This happens because each nitrogenous base should pair with the complimentary partner, such as adenine with thymine and cytosine and guanine. DNA replication happens due to the action of enzymes. Each new strands will form an identical copy of the original DNA strand. There are various models proposed to explain how replication occurs. These are the conservative, semiconservative and dispersive.
📚 Related Questions
Question
A client diagnosed with human immunodeficiency virus (hiv) infection states, "i'm afraid of gaining weight, so i always supplement my diet with vitamins." which response by the nurse is appropriate?
Solution 1
The nurse should tell the patient that eating a variety of healthy food is the best source of vitamins. This is should be told by the nurse in a nice and emphatic manner, especially in this case wherein patients diagnosed with HIV are particularly emotionally sensitive. While this is true, the nurse should not advise the patient to stop taking his or her supplements; especially being diagnosed with HIV, his or her immune system is very frail and needs more than the usual nutrients compared to the normal population.
Question
It is determined that a client with heart block will require implantation of a permanent pacemaker to assist heart function. the client expresses concern about having an increased risk of accidental electrocution. how should the nurse respond?
Solution 1
For the answer to the question above, the voltage emitted is not strong enough to electrocute. So they must increase the voltage. The pacemaker is pretested for safety before it is inserted, so they must increase the voltage and test it before proceeding.
Question
"classifications of lipoproteins include: very low density lipoproteins, low density lipoproteins, high density lipoproteins and __________."
Solution 1
The four types of Lipoproteins are:
Very Low Density Lipoprotein: Very low density lipoprotein consists of protein, cholestrol and fats. It is synthesized at liver. It has 5 apoporotein asosciated with it and in conversion to intermediate density lipoprotein and low density lipoprotein these apoproteins are removed except one apoprotein called B100.
Low Density Lipoproteinfats. It chiefly consists of cholestrol. It transport all the fat molecules around the body to extracellular fluid. LDL posses risk of cardiovascualr diseases if it invade the endothellium and oxidized.
High Density Lipoprotein: HDL is the dense lipoprotein with highest protein to fat ratio.HDL takes awat fat from cells to liver thereby lowering blood cholestrol level. Hence also knows as good cholestrol. HDL increases with exercise, weight loss and higher estrogen level.
Chylomicrons: Chylomucrons are largest and least dense lipoprotein. It has got highest triglyceride content. It transport fats and cholestrol from intestine to liver, muscles and fat cells.
Solution 2
The right answer is chylomicrons.
A chylomicron is a variety of lipoproteins (protein-associated lipids) present in the blood consisting almost entirely of exogenous triglycerides.
In other words, it is large, light and bulky particles, of a greasy nature, taking a certain shape in the blood (which has a milky appearance when they circulate there), and carrying the triglycerides coming from the diet after a meal. high in fat.
Question
Chris begins to sweat when he works out. the sweating that occurs
Solution 1
Is the body's way of cooling itself when you are getting hot or running a fever
Question
A 75-year-old client has a baseline blood pressure of 140/90 mm hg. the nurse obtains a sitting blood pressure in the client's left arm, and the reading is 160/100 mm hg. what action should the nurse take next?
Solution 1
The nurse should retake the blood pressure of the patient at the other arm, ideally after a few minutes of rest period. This is to confirm that the blood pressure is indeed elevated from the baseline of 160/100 mmHg. Next, the nurse should also take the blood pressure of the client at both arms while standing. Normally, blood pressure will decrease upon standing and the nurse should note whether or not there are any changes in the baseline blood pressure after doing this.
Solution 2
It is also necessary for the nurse to obtain a sitting blood pressure in the right arm of the client. The nurse should then ask the client to stand up and the take the blood pressure in the left as well as the right arm.
Question
A scientist is carrying out replication of DNA artificially in her laboratory. What will she use to join the gaps on the DNA strand? (a.) the enzyme DNA polymerase
(b.) the enzyme DNA ligase
(b.) an artificial adhesive compound
Solution 1
The question says, a scientist is carrying out replication of DNA artificially in her laboratory. What will she use to join the gaps on the DNA strand? They correct option is DNA ligase. DNA ligase is the enzyme which specializes in facilitating the joining of DNA strands by catalysing the formation of phosphodiester bonds.
Solution 2
The answer to the question is B
Question
A metal worker wants to figure out the cost of making a rectangular iron bar. He knows that the required dimensions of the bar are 8.0 cm (width), 0.40 cm (height), and 310 cm (length). If this kind of iron costs $0.015 per cm3, what is the cost of making the bar (to the nearest dollar)?
Solution 1
The cost of making the bar is $14.88 or rounded up to the nearest dollar $15.00
Given:
width = 8 cm
length = 310 cm
height = 0.40 cm
cost = $0.015 per cm³
Volume of a rectangular prism is solved by multiplying its length, its width, and its height.
V = l * w * h
= 310 cm * 8 cm * 0.40 cm
V = 992 cm³
Total cost = Volume * cost per cm³
= 992 cm³ * $0.015/cm³
Total cost = $14.88
Given:
width = 8 cm
length = 310 cm
height = 0.40 cm
cost = $0.015 per cm³
Volume of a rectangular prism is solved by multiplying its length, its width, and its height.
V = l * w * h
= 310 cm * 8 cm * 0.40 cm
V = 992 cm³
Total cost = Volume * cost per cm³
= 992 cm³ * $0.015/cm³
Total cost = $14.88
Solution 2
Answer: $15
Explanation:
Question
A sterile urine specimen for culture and sensitivity has been ordered for a client who has an indwelling urinary catheter. how should the nurse obtain this specimen? collect a urine specimen from the collection bag first thing in the morning, or a few hours after the client receives a diuretic. empty the collection bag, wait 30 minutes, and then collect the contents of the collection bag. discontinue the indwelling catheter and insert an intermittent catheter to obtain the sterile specimen. withdraw several milliliters of urine from the port on the collection tubing, using a syringe and needle.
Solution 1
The correct answer is "withdraw several milliliters of urine from the port on the collection tubing, using a syringe and needle".
In collecting urine samples, the goal is to avoid contamination. In this case since the patient has in-dwelling foley catheter inserted, collection of the urine from the urine bag is considered contaminated; therefore the health practitioner should collect the urine specimen from the port of the collection tubing.
In collecting urine samples, the goal is to avoid contamination. In this case since the patient has in-dwelling foley catheter inserted, collection of the urine from the urine bag is considered contaminated; therefore the health practitioner should collect the urine specimen from the port of the collection tubing.
Question
Circulatory systems compensate for _____. circulatory systems compensate for _____. the problem of communication systems involving only the nervous system the need to cushion animals from trauma temperature differences between the lungs and the active tissue the slow rate at which diffusion occurs over large distances
Solution 1
Circulatory systems compensate for the slow rate at which diffusion occurs over large distances.
Diffusion is the process of molecules moving from a place of high concentration to a place of low concentration, which happens thanks to the chemical potential gradient, such as the concentration gradient (the difference in the concentrations). This process is used by our cells, for example, in the transport of oxygen, since it can diffuse through the cell membrane and into the cell, when the concentration of oxygen is higher in the intercellular space.
Diffusion is generally a slow process when it comes to large distances, so for example, oxygen would take a lot of time to get from one place in the body to another, since it would have to diffuse through millions of cells.
This is where the circulatory system comes into play. Thanks to the circulatory system, the oxygen can simply enter the blood flow, and be transported by the hemoglobin in the red blood cells from our lungs to all the cells in our body much faster. Same goes for different molecules that the circulatory system transports, like nutrients, amino acids, carbon dioxide, hormones. These are all transported throughout our body at a rate much faster than the rate of diffusion, and diffusion is used in the capillaries, at the target cells after the molecules have already been transported by the blood.
Diffusion is the process of molecules moving from a place of high concentration to a place of low concentration, which happens thanks to the chemical potential gradient, such as the concentration gradient (the difference in the concentrations). This process is used by our cells, for example, in the transport of oxygen, since it can diffuse through the cell membrane and into the cell, when the concentration of oxygen is higher in the intercellular space.
Diffusion is generally a slow process when it comes to large distances, so for example, oxygen would take a lot of time to get from one place in the body to another, since it would have to diffuse through millions of cells.
This is where the circulatory system comes into play. Thanks to the circulatory system, the oxygen can simply enter the blood flow, and be transported by the hemoglobin in the red blood cells from our lungs to all the cells in our body much faster. Same goes for different molecules that the circulatory system transports, like nutrients, amino acids, carbon dioxide, hormones. These are all transported throughout our body at a rate much faster than the rate of diffusion, and diffusion is used in the capillaries, at the target cells after the molecules have already been transported by the blood.
Question
The inner planets are Uranus, Neptune, Saturn and Jupiter.
true or false
Solution 1
False, inner planets are planets within the asteroid belt such as Earth and Mercury
Solution 2
False the inner planets are earth, mars, venus and, mercury.
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