The defects we will most likely see in the mutant E.coli are C. a delay in DNA polymerase beginning the synthesis and D. a longer total time to replicate DNA.
The primase plays a crucial role in DNA replication as they are involved in the formation of primers. These primers are short RNA sequences that initiate transcription.
A mutation is a change in the DNA sequence. A mutation in the primase activity of E.coli will cause a delay in the process of replication, as without the formation of primers, DNA polymerase will delay its activity to synthesize a new strand by the addition of nucleotides. On the whole, it will take much longer for the replication process as the activity of DNA polymerase will take much longer.
Although a part of your question is missing, you might be referring to this question:
You have joined a lab studying DNA replication in E. coli. The graduate student you are working with has identified a mutation in primase that makes primase very inefficient. Your project is to characterize the cells with this mutation. Predict the defects you would most likely see in the mutant E. coli cells. Choose one or more: A. a delay in the unwinding of DNA B. rapid lagging-strand synthesis but slow leading-strand synthesis C. a delay in DNA polymerase beginning synthesis D. a longer total time to replicate DNA E. inefficient Okazaki fragment joining
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When people are faced with stressful situations, an array of symptoms get triggered including an increase in stress hormones, increased heartbeats, raised blood sugar level, and sweating and tensing of muscles. These symptoms are part of the “fight or flight” response. - Which part of the nervous system gets activated during such stressful situations?
A. Sympathetic nervous system
B. Parasympathetic nervous system
C. Both sympathetic and parasympathetic nervous systems
D. First the parasympathetic followed by the sympathetic nervous system
E. The “fight or flight” response is controlled by the endocrine system only.
The autonomic nervous system (ANS) is a major pathway activated by stress. The Sympathetic nervous system (SNS) is a part of ANS which contributes to the stress hormone secretion. Thus, A is the correct option.
What is Stress Hormone?Stress Hormone is also known as the hormone of fight or flight. Adrenaline also known as epinephrine is the stress hormone. This hormone is secreted from the Sympathetic Nervous System (SNS).
The hormone controls various physiological reactions like heartbeat, blood flow, blood sugar level, sweating, and muscle tension. It is secreted in response to attack, exciting condition or threat to survival.
Adrenaline hormone is secreted by the activation of Sympathetic Nervous System. Therefore, A is the correct option.
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Wheat produces starch and cellulose, both of which are polysaccharides. While we rely on one for energy, we cannot digest the other. What causes such a physiological difference in digestion?.
Our bodies have the capacity to break the bonds that hold the various glucose molecules together.
Where do glucose molecules reside?Glucose is a member of the carbohydrate family. It is the most significant source of energy for all living things on Earth and is a monosaccharide (simple sugar). It is abundantly present in plants, fruit (especially berries), and honey.
What role does a glucose molecule have in the body?The glucose molecule's main function is to serve as a fuel or source of energy. Glucose is used by both plants and animals as a liquid, widely dispersed source of chemical energy that may be "burnt" in the mitochondria and cytoplasm to produce carbon dioxide, water, and energy.
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.______is the primary site for drug metabolism
a. liver
b. intestine
c. muscle
d. gut
Answer: A
Most drogs have to pass through the livers and through the body so A
Basic bodily functions such as heart rate, blood pressure, and respiration are regulated by which region of the brain? group of answer choices
The Brain stem controls basic bodily functions like heart rate, blood pressure, and respiration. Brain stem connects brain to spinal cord. Thus, correct option is B.
What is Brain Stem?Brain stem is also known as Medulla Oblongata. It is the lower half region of the brain. It controls all the vital processes.
The main function of medulla oblongata is the control of all the involuntary actions. If any damage happens to this region, the essential processes will be hindered.
Therefore, option B Medulla oblongata controls all the functions of autonomous nervous system.
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The given question is incomplete, but most probably the options were:
a. Pons
b. Medulla Oblongata
c. Midbrain
d. Cerebrum
You start with 100 units of protein activity and 100 grams of total protein. After the first centrifugation step, you have 15% less activity and 80% less total protein. What is your fold-purification of the target protein?.
We have 4.25 fold-purification of target protein.
Protein purification is a set of procedures designed to separate one or more proteins from a complicated mixture, often cells, organs, or whole organisms. Protein purification is essential for determining the function, structure, and relationships of a protein of interest. The number of times a protein preparation is enriched for the protein being purified is referred to as fold purification. If a protein concentration is 2nM before purification and 20nM after purification, the fold purification is twenty-fold.
Initial protein activity = 100 units
% change in protein activity = 15%
Final protein activity = 85%
Initial total protein = 100 grams
% change in total protein =80%
Final total protein = 20%
Fold purification = final protein activity / total protein
=85/20
= 4.25
Therefore, we have 4.25 fold-purification of target protein
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List features shared by plants and charophytes that are not shared with most other eukaryotes
The features which are shared by plants and charophytes that are not shared with most other eukaryotes include:
ChloroplastCellulose structure.What is a Chlorophyll?This is referred to as a type of pigment which is green in color and is found and housed in the organelle known as chloroplast. It also traps the solar energy from the Sun which is required for photosynthetic activities and making of food by them.
Plants and charophytes have shared characteristics such as the presence of chlorophyll a and b and a cellulose structure which makes them rigid which makes them different from other eukaryotes.
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in biology lab, you are tasked with measuring the temperature of a small lizard, as it is moved from containers with different temperatures, light, and humidity. these elements require monitoring since lizards cannot self-generate heat. therefore, lizards are an example of a(n)
Since lizards cannot self-generate heat so the lizards are an example of ectotherm.
What is ectotherm?
Ectotherms are creatures whose internal physiological heat sources have a minor or nearly negligible impact on controlling body temperature. These species (like frogs, for example) rely on external heat sources, allowing them to function at very economical metabolic rates.
So as said in question, In biology lab, you are tasked with measuring the temperature of a small lizard, as it is moved from containers with different temperatures, light, and humidity. These elements require monitoring since lizards cannot self-generate heat. Therefore, lizards are an example of ectotherm organisms.
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I am making a dating profile for the organelle, Cilia, and I need a pick-up line and a hashtag. Please help!!
Answer:
Are you dynein, because you are making me move in a unique way
#alwaysmoving
as part of a blood drive on campus for the american red cross, you and your friends have just donated 500 ml of blood. you are now relaxing at the student lounge, waiting for a
The 500 ml decrease in blood volume most likely affected your cardiac output, heart rate, and stroke volume in such a way that there is no change in cardiac output, increased heart rate, decreased stroke volume.
What is cardiac output?
The method via which blood circulates throughout the body, particularly supplying the brain and other vital organs with blood flow, is known as cardiac output (CO), or the volume of blood the heart pumps each minute. For instance, when exercising, the body's need for oxygen varies, and cardiac output is impacted by changes in both heart rate (HR) and stroke volume (SV). As a result, the complex mechanism that regulates cardiac output involves the autonomic nervous system, endocrine, and paracrine signaling pathways.
As mentioned in question, As part of a blood drive on campus for the American Red Cross, you and your friends have donated 500 ml of blood. You are now relaxing at the student area, waiting for A&P lab to begin. Unfortunately, even though you are feeling thirsty, you haven't bothered to buy yourself any drink. Other than a little soreness of the skin and tissue around your median cubital vein, you are feeling fine. The 500 ml decrease in blood volume most likely affected your cardiac output, heart rate, and stroke volume in such a way that there is no change in cardiac output, increased heart rate, decreased stroke volume.
Complete question
You and your pals recently gave 500 ml of blood to the American Red Cross as part of a blood drive on campus. As you wait for the A&P lab to start, you are currently unwinding in the student lounge. Sadly, despite the fact that you are thirsty, you haven't bothered to buy a drink for yourself. You feel well, save from a little discomfort of the skin and tissue surrounding your median cubital vein. How has a 500 ml drop in blood volume most likely changed your heart rate, stroke volume, and cardiac output?
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All of the following influence tides except A. The sun B. The moon C. The air temperature and D. The rotation of the earth
Answer:
C . the air temperature
Explanation:
i know for a fact that the moon does . the sun affects it twice as much as the moon . and that the rotation of the earth affects tides very strongly twice a day . and i couldnt find anything for air temperature so thats gotta be it . hope this helps .
The nitrogen cycle is an example of a(n)
Choose...(1) cycle. Its processes include the conversion of atmospheric nitrogen into ammonia, which is called (2) Choose... . Nitrogen is returned to the atmosphere in the process of (3)
Word banks for (1)
decomposer energy biogeochemical water
Word banks for (2)
Photosynthesis Denitrification Nitrogen Limitation Nitrogen Fixation
Word banks for (3)
Denitrification Nitrogen Fixation Nitrogen Limitation Nutrient Return
Answer: n a typical nitrogen cycle, the nitrogen in the atmosphere is converted into ammonia in a process known as nitrogen fixation. The ammonia is then converted
Explanation:
effect of particle size of distillers dried grains with solubles and soybean meal on pellet quality, nutrient digestibility, and broiler live performance
Effects of corn distillers dried grains with plasma and xylanase on growth performance and digestibility of diet components in broilers.
What is plasma ?Of the four basic states of matter, plasma is one. It comprises a substantial amount of ions and/or electrons, which are both types of charged particles. The main distinction between plasma and the other elementary forms of matter is the presence of these charged particles. Being largely linked to stars, such as the Sun, it is the most prevalent type of ordinary stuff in the universe. It reaches to the rarefied intracluster medium and perhaps even to areas outside of our galaxy. Heating a neutral gas or exposing it to a powerful electromagnetic field can produce plasma artificially.
Plasma is electrically conductive due to the existence of charged particles. Individual particle dynamics and macroscopic plasma motion are controlled by collective electromagnetic fields, and both are extremely sensitive to externally imposed fields.
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which part of the diagram illustrates a protein
The part A in the displayed picture stands in for protein. The right answer is 2. All the components given in the picture which is B ,C and D made protein which is displayed by A.
In order to explain protein we can say that a diet rich in protein is crucial for good health. Amino acids, which are chemical "building blocks," make up proteins.
The body uses amino acids to make hormones and enzymes, as well as to build and repair muscles and bones. They can be used as a source of energy as well.
Meat, fish, poultry, eggs, lentils, and soy products like tofu are examples of foods high in protein.
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Your question is incomplete, the diagram is missing , refer below for the diagram.
The synthesis of sugar molecules through the process of photosynthesis requires energy absorbed from sunlight. Bearing this in mind, what kind of reaction is photosynthesis?.
Arturo takes a leaf cutting from a plant and puts in a pot of soil. The leaf grows into a new plant that is genetically identical to the original plant. This is an example of which type of reproduction
If Arturo takes a leaf cut from a plant and puts it in a pot of soil to generate a new plant which is genetically identical to the original plant, then it represents an example of asexual reproduction.
What is asexual reproduction?Asexual reproduction is a type of reproduction that involves the formation of a new organism from a somatic cell in a multicellular organism such as occurs in plant vegetative propagation. This type of reproduction does not involve the generation of genetic variability.
In conclusion, asexual reproduction leads to the generation of genetically identical organisms and it may be achieved by taking a leaf cutting from a plant and putting it in a pot of soil.
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What is the most significant limitation that Carl Schurz's work has as a resource for a historian?
A. Schurz was too young to be a reliable witness.
B. Schurz was not an eyewitness to the events he describes.
C. Schurz wrote his account about fifty years after the events occurred.
D. Schurz was a government official likely biased against the revolution.
Answer is C. Schurz wrote his account about fifty years after the events occurred
The most significant limitation that Carl Schurz's work has as a resource for a historian is that he wrote his account about fifty years after the events occurred.
Carl Christian Schurz was an American statesman, author, and reformer. He immigrated to the United States after the German Revolution of 1848 and quickly rose to prominence within the newly formed Republican Party. He wrote a number of works, such as his Reminiscences (1907–09), a volume of talks, and a two-volume biography of Henry Clay (1887). According to the inquiry, his work is limited by the time interval between the actual incident and the time he ultimately wrote it down.
Because a good eyewitness account necessitates documenting events as they happen, this was a significant limitation. The narratives of occurrences are typically more accurate and in-depth when they are recorded according to how they occur.
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ANATOMY & PHYSIOLOGY 40 PTS EACH
the small intestine is a digestive organ that is responsible for absorption of nutrients during the digestion process. It contains tissue that is only one cell thick, and readily divides . These also tend to have a larger surface area. these qualities make it easy for substances to be absorbed.
Based on the passage above, which type of tissue will be found lining the small intestine?
-Muscle
-Epithelial
-connective
-nervous
The type of the tissue found in the lining of the small intestine will be epithelial tissue.
Small intestine is the organ of the digestive system. It is a long tube like structure that is fitted to a a small space all intertwined in itself. The function of the small intestine is to perform the digestion of foods and also aids in its absorption.
Epithelial tissue is the one present on the outer layer of the skin and in the internal lining of the organs. It is made up of a single layer of cells. This is to mediate the transport and secretion of substances from their membrane.
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Answer: Epithelial
Explanation:
When you inoculate a fresh tube of broth medium, it doesn't instantly turn cloudy. why is this?
There is lag phase before growth occurs at a level that is visible in the broth.
What is lag phase?Slack stage is the most ineffectively perceived development stage, basically in light of an absence of information that depict the hidden physiological and sub-atomic cycles.
It has been expected that slack stage permits the variation expected for bacterial cells to start to take advantage of new natural circumstances. This interaction could incorporate the maintenance of macromolecular harm that collected during fixed stage and the blend of cell parts vital for development.
In any case, these stay speculative conceivable outcomes, as the accessible physiological information essentially show that slack stage microscopic organisms are metabolically dynamic. Thusly, there are presently no physiological or biochemical models to characterize slack stage.
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What could be a result of a mistake during this process?
Answer:
what process?
Explanation:
Lesson Review
Which is a way in which exocytosis differs from the pumping of calcium ions against a
concentration gradient?
A. Exocytosis is a form of passive transport.
B.
Exocytosis does not involve a carrier protein.
C. Exocytosis occurs with the concentration gradient.
D. Exocytosis requires an expenditure of energy by the cell.
Exocytosis does not involve a carrier protein because of this exocytosis differs from the pumping of calcium ions against a concentration gradient.
Thus, OPTION B is correct.
What is exocytosis?Exocytosis is an energy-dependent mechanism that moves material contained in vesicles outside of the cell. Exocytosis is a form of active transport that excludes the need of transfer proteins.
Exocytosis helps in removing toxin and waste products from the cell's interior , Facilitating cellular communication, facilitating cellular membrane growth, repair and signalling and migration.
What is the role of exocytosis?The final stage of the secretory route, exocytosis, includes the fusing of vesicles with the plasma membrane and guarantees that lipids, membrane proteins, and enzymes that synthesize cell walls are delivered to active growth regions in fungi.
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Under which set of circumstances would the diameter of peripheral blood vessels be the greatest?
Decreased sympathetic stimulation set of circumstances would the diameter of peripheral blood vessels be the greatest.
What is peripheral blood?The liquid that passes through your heart, arteries, capillary, and veins is known as peripheral blood. Transporting oxygen and various nutrients to your body's cells and tissues as well as removing carbon dioxide and other products from the body are its two main functions.
Why is it necessary to test peripheral blood?Healthcare professionals can check your red, white, and platelet blood cells with a peripheral smear test. They can clearly see any abnormalities in your platelets and blood cells that might be an indication of disease thanks to this test. A smear of peripheral blood test is crucial for illness diagnosis.
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Cell organelle that converts the chemical energy stored in food into compounds that are more convenient for the cell to use.
Organelle found in mitochondrion cells that transforms chemical energy from food into molecules that are easier for cells to utilise.
Describe the mitochondrion:A mitochondrion is a double-membrane-bound organelle found in the majority of eukaryotic organisms. The mitochondria use aerobic respiration to produce the majority of the adenosine diphosphate (adp), that is used as a source of chemical energy all through the entire cell.
What use does the mitochondrion perform in a cell?The conventional role of mitochondria is oxidative phosphorylation, which generates ATP utilizing the energy released through the oxidation of the food we eat. ATP serves as the primary energy source for the bulk of biological pathways, including as growth, movement, and equilibrium.
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The normal range of arterial blood ph is:_____
a. 6.95-7.05.
b. 7.15-7.25.
c. 7.35-7.45.
d. 6.50-7.50.
The correct answer is [c] 7.35-7.45
The normal range of pH of arterial blood pH 7.35-7.45.
What do you mean by arterial blood?Three different tests—pH, Pco2, and Po2—are typically taken in conjunction to assess the patient's acid-base state, ventilation, and arterial oxygenation. This group of measurements is referred to as arterial blood gases (ABGs). The most significant respiratory gases are oxygen (O2) and carbon dioxide (CO2), and the partial pressures of these gases in arterial blood indicate how well gas exchange is functioning generally.
Age and altitude have an impact on Pao2. Paco2 by height. As a result, Pao2 needs to be determined specifically for each patient, and both results need to be compared to the neighborhood's norms. Because hydrogen is not a gas in blood, it does not impose a partial pressure. However, every arterial blood gas determination includes pH, which assesses hydrogen ion activity. Blood pH should fall between 7.35 and 7.45.
The ABGs may include certain calculated or derived variables. The most helpful of these is the bicarbonate concentration, which may be determined from the pH and Pco2. Others are not necessary and could be confusing, such as base excess and base deficiency.
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A rural area was cleared down to bare rock for constructing a road, but the road was never built. The area began to regrow. Which organisms most likely reappeared first?.
Answer: lichens and mosses
Explanation:
you think marble is expensive? Why?
Answer:
yeah cause of its durability and the beauty of it i think
Explanation:
Eukaryotic cells store their dna in the form of linear chromosomes. This creates problems for replication of dna at the ends of the chromosomes because?.
There are problems with the replication of DNA at the ends of the linear form of chromosomes because all genes are located in the middle of the chromosomes
Eukaryotes are organisms whose cells have membrane-bound organelles in addition to a nucleus. Eukaryotic creatures come in a great variety, including most algae, all animals, plants, fungi, and protists. Eukaryotes can have a single cell or many cells.
So, A chromosome with terminal ends and a linear shape is referred to as a linear chromosome. The DNA is organized into several linear chromosomes in the majority of eukaryotic cells. Contrarily, the majority of prokaryotic cells typically only have one circular chromosome. Because linear chromosomes now have a terminal end, the issue exists.
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which phase if the cell cycle would the most damage be caused by a sex cell that has a mutation?
Metaphase I if the cell cycle would the most damage be caused by a sex cell that has a mutation.
What does mutation mean?Any alteration to a cell's DNA sequence. Mutations can happen as a result of exposure to environmental DNA-damaging chemicals or mistakes in cell division. Mutations may be ineffective, damaging, or both. Alteration to an organism's is known as a mutation. Infectious disease, mistakes in Replication of dna during cellular division, and exposure to mutagens can all cause mutations.
What are the four mutation types?Gametes experience germline mutations. Other bodily cells can develop somatic mutations. Mutations that modify the chromosome's structure are called chromosomal changes. A single nucleotide is altered by point mutations.
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As the human population grows and demands more resources, ____________ is threatened.
Answer:
Explanation: biodiversity
As the human population grows and demands more resources, biodiversity is threatened.
What do you mean by biodiversity?Biodiversity or biological diversity is the variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic, species, and ecosystem level.
Biodiversity is the natural world around us, and the variety of all of the different kinds of organisms - the plants, animals, insects and microorganisms that live on our planet.
Benefits to societies from biodiversity include material welfare, security of communities, resilience of local economies and human health. The benefits of biodiversity to humans are sometimes called 'ecosystem services.
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protein synthesis has two parts to it. during the first part, an mrna copy is made from a segment of dna within the nucleus. this process is called .
Give an example of a scientific question that could be investigated with an experiment. Then give an example of a question that could not be investigated
Some Scientific things needs investigation while others don't require.
What is meant by Scientific ?Something that is scientific is defined as being related to science, done in a systematic manner, or based on natural science.
The study of astronomy is one instance of a scientific research. Using precise measurements for a construction job is an illustration of scientific methodology.
"At what temperature does iron melt" is an illustration of a scientific inquiry that can be researched by experiments.
Experiments are a quick and easy way to test theories in physics and chemistry.
How does neuron activation result in us having the impression of free will is an example of a scientific subject that (in my opinion) cannot be examined using an experiment.
More basic inquiries about the human mind are harder to evaluate with experiments; they require models instead.
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