The existence of several hexokinase enzymes in various cellular types is one of the main mechanisms that governs the regulation of the hexokinase stage in glycolysis.
In essence, these are proteins that are encoded by various genes yet serve the same purpose in cells. They're referred to as isozymes. Isozymes can differ in their post-translational modifications, enzyme kinetics, expression patterns in various tissues, and ability to bind to various allosteric effectors of glycolysis. This enables the body to exert varying levels of control over the same processes in other parts of the body. There are four significant hexokinase isozymes in vertebrates, and they differ in subcellular locations and kinetics parameters of glycolysis. This enables the body to phosphorylate hexoses differently depending on the various local conditions and physiological function.
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In gene expression, the goal of translation is to A. make a mRNA nucleotide sequence from a specific gene. B. make a DNA nucleotide sequence from a specific gene. C. read codons and incorporate corresponding amino acids into a growing polypeptide chain D. make a new gene that will be passed on to the next generation
In gene expression, the goal of translation is to read codons and incorporate corresponding amino acids into a growing polypeptide chain (option C).
What is gene expression?Gene expression is the transcription and translation of a gene into messenger RNA and thus into a protein.
It is the process by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products, protein or non-coding RNA, and ultimately affect a phenotype, as the final effect.
Gene expression consists of two processes namely;
TranscriptionTranslationTranscription is the synthesis of RNA under the direction of DNA. It is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).
On the other hand, translation is the process whereby a strand of mRNA directs assembly of amino acids into proteins within a ribosome.
Therefore, option C is the correct description of the goal of translation.
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TRUE/FALSE,meiosis is a mean to make gametes, and is the reason each parent passes one copy gene to their offspring
True.
The purpose of meiosis is to produce gametes or sex cells. During meiosis, four daughter cells are produced, each of which is haploid (containing half as many chromosomes as the parent cell).
What is Meiosis?
Meiosis contains two distinct cell divisions, which means that one parent cell can produce four gametes (eggs in females, sperm in males). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.
Before entering meiosis I, a cell must first go through interphase. This is the same interphase that occurs before mitosis. The cell grows, copies its chromosomes, and prepares for division during the G1 phase, S phase, and G2 phase of interphase.
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Gonorrhea is a sexually transmitted disease. The male complains of __________ and the female complains of __________.
Gonorrhea is a sexually transmitted disease, the male complains of swollen testicles and the female complains of yellowish vaginal discharge.
What is a sexually transmitted disease?Gonorrhea in males can result in a painful infection in the testicles and prostate gland, which in a small percentage of instances may impair fertility.
In a small percentage of cases, untreated gonorrhea can spread through the bloodstream and result in life-threatening infections in other body areas (sepsis).
Therefore, for a number of reasons, women in particular are more likely than males to get gonorrhea, syphilis, and chlamydia.
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Which of the below animals is the least related to the others, evolutionarily?A.LobsterB.Parasitic nematode wormC.SnailD.BeetleE.Centipede
Snail is the least related to the others, evolutionarily comparing to the following animals.
It is believed that the first land snail evolved around 350 million years ago, when plants required extremely wet conditions. snail is a mollusk type of animal. Survival on land meant a period of unfavorable conditions, with climatic changes affecting the snail's body, which is still mostly water. There is evidence of primitive gastropods dating back to the late Cambrian period; all land snails have made numerous adaptations to survive. Their main adaptation is the transition from aquatic to terrestrial (or land) organisms. They accomplished this by losing their gills and developing air-breathing lungs.
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What is sea farming?
Answer: Aquaculture (sea farming) is the cultivation of aquatic animals and plants in controlled environments.
Explanation:
Seawater farming addresses the severe lack of freshwater and undesirable soil conditions for agricultural activities in coastal regions. Saltwater, instead of freshwater, can be used to directly support a wide range of sustainable agricultural activities and enrich the soils in the coastal regions.
Answer: um well its kinda like ----- when animals and plants are controlled environments of farming seaweed and shellfish well it's like water based farming
Explanation: hope it helps
Muscle contraction depends on ATP hydrolysis. During periods of intense exercise, muscle cells rely on the ATP supplied by three metabolic pathways: glycolysis, mitochondrial respiration, and the phosphagen system. Figure 1 shows the rates at which the three metabolic pathways produce ATP following the start of an intense period of exercise.
Which of the following correctly uses the data to justify the claim that the phosphagen system is an immediate, short-term source of ATP for muscle cells?
ATP production by the phosphagen system increases and decreases rapidly following the start of the exercise period.
ATP production by the phosphagen system increases and decreases rapidly following the start of the exercise period.
What is ATP?
Adenosine triphosphate (ATP) is the cellular energy source for usage and storage. An adenine-based nitrogenous base, ribose sugar, and three serially bound phosphate groups make up the nucleoside triphosphate structure of ATP. When macromolecules like proteins and lipids are moved into and out of the cell, ATP is an essential component of the process. Active transport mechanisms are able to move these molecules over a concentration gradient because the hydrolysis of ATP supplies the energy needed. The source of energy in a cell is ATP. Cells are able to safely store energy in tiny packets and only release it when absolutely necessary. In other words, ATP bridges the gap between activities that need energy, like synthesis and those that release energy, like the breakdown of food.
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Can YOU curl your tongue up on the sides?
Scientists Debunk Familiar Tongue-Rolling Lore | HuffPost Impact
We are pretending that tongue-curling in humans is a dominant genetic trait.
Suppose a man who is Tt for tongue-curling marries a woman who is also Tt for this trait. What are the possible genotypes and phenotypes of their children, and the percent chance for each?
Genotype Phenotype (curl or no curl) Percent Chance (number only)
TT
Tt
tt
Word Bank:
2525curl750100no curlcurl50
Rolling, folding, spinning, adjusting, and turning of the tongue are all included in the definition of tongue twisting.
What is tongue twisting.?The tongue is a muscle organ in humans that can detect food flavors and is utilized for verbal communication. Genetics has an impact on every facet of a person.
The shape or movement of one's tongue is also influenced by their unique gene makeup. The ability to twist one's tongue is neither a benefit nor a drawback.
Not a genetic disorder or disease, tongue-twisting is an individual's distinctive use of his tongue. An allele of the gene known as the dominant allele is responsible for the ability to roll one's tongue.
Therefore, Rolling, folding, spinning, adjusting, and turning of the tongue are all included in the definition of tongue twisting.
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a researcher is studying a rodent species with a lot of variability in tail length. individuals may have short tails, medium tails, or long tails. the researcher has noticed that a new invasive predator, which catches prey by their tails as they try to escape, seems to catch individuals with long tails more often than those with short tails. based on a small field trial, the relative fitness of long-tailed individuals seems to be 0.6 compared to short-tailed ones (1.0), with medium tails in-between (0.8). use the examples tab to predict the outcome after selection for the rodent in regions with the invasive predator. what describes the population after 100 generations of selection? choose all that apply
Individuals with short tails are the most prevalent phenotype.
There is no longer a long-tailed phenotype.This serves as an illustration of directed selection.In this case, stabilizing selection was used.What is Phenotype?
The term "phenotype" describes a person's observable characteristics, such as height, eye color, and blood type. Both a person's genetic make-up (genotype) and environmental circumstances affect their phenotype.Phenotypes include things like height, wing length, and hair color. In addition to measurable traits that may be observed and tested in a lab, phenotypes also include blood cell or hormone levels.Phenotypes include things like height, wing length, and hair color. In addition to measurable traits that may be observed and tested in a lab, phenotypes also include blood cell or hormone levels.What is selection?
The environment will change, even if a parent was well acclimated to it, leaving the offspring poorly adapted to it. Only the finest and fittest creatures can reproduce since there are many species and little resources. Natural selection, which is conceived of as the environment and forces acting to prevent organisms from surviving and reproducing, operates against all living things. As a result, living things have the ability to pass on their DNA to the next generation. These DNA sequences are "selected" for by this.Hence Individuals with short tails are the most prevalent phenotype.
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in earlier chapters your read about receptors in vision. rods play a role in light, and cones play role in light. group of answer choices
At dim light levels, rods are responsible for vision (scotopic vision). At bright light levels, cones become active (photopic vision).
what are rods and cones?
Rods and cones are the two categories of photoreceptors found in the human retina that collect light. Cones are in charge of vision at higher light levels, whereas rods are responsible for vision in low light. Mesopic light levels are those where both are usable.
Rods Lacking in spatial acuity and unable of mediating color, they are capable of scotopic vision (low light levels). The retina's outer edges are densely populated. They are rod-shaped, which helps with nighttime or low light vision. Include the vitamin A-rich pigment rhodopsin, which is important for night vision and makes rods sensitive to light.
Cones are responsible for excellent spatial acuity, photopic vision (higher light levels), and color perception. Most often observed in retina, they are primarily inhabited in the central fovea region. Conical in shape, they aid in the distinction of color and other subtle characteristics.
Long-wavelength sensitive cones (L-cones), middle-wavelength sensitive cones (M-cones), and short-wavelength sensitive cones are the three categories (S-cones). These are made up of violet-colored iodopsin pigment.
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what interaction is involved in the stimulation of a helper t cell?
Answer:
costimulatory reaction between a signaling protein known as B7
The connection between CD4 and the MHC II protein and the engagement of the T cell receptor with processed antigen.
What is the stimulation of a T cell?A CD4 receptor can be found on the surface of helper T-cells. Major Histocompatibility Complex (MHC) class II molecules and the CD4 receptor interact.
T helper cells are activated by the interaction between T-cell receptors (TCR) and peptide MHC class II molecules (pMHC II),
Which are expressed on the surface of antigen-presenting cells (APCs). such as DCs, mononuclear phagocytes, some endothelial cells, thymic epithelial cells, and B cells.
Therefore, CD4 and the MHC II, interaction is involved in the stimulation of a helper t cell.
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The parasympathetic division of the autonomic nervous system is also known as the __________ division.
The craniosacral division of the ANS refers to the central nervous system components of the parasympathetic nervous system, which are found inside the brain and the sacral section of the spinal cord.
The parasympathetic nervous system opposes the sympathetic nervous system, which is engaged under a stressful situation. When cortisol and adrenaline levels fall, the parasympathetic nervous system is stimulated, and the body responds by detoxifying, digesting, and creating immunity.
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the triads of a muscle fiber consist of __________.
The triads of a muscle fiber consist of the T-tubule surrounded by two terminal cisternae of the sarcoplasmic reticulum.
What is Muscle fiber?Muscle fiber may be characterized as large multinucleated cells. These cells most obviously express histological features in cross-striations. The cytoplasm of these cells may contain many myofibrils that significantly include tiny cylinders consisting of bundles of myofilaments.
The sarcoplasmic reticulum is a special structure in muscle cells that holds and releases calcium. Due to this, the function of muscle fiber may become more specific as compared to other fibrous cells.
Therefore, the triads of a muscle fiber consist of the T-tubule surrounded by two terminal cisternae of the sarcoplasmic reticulum.
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Phosphate was a limiting factor to algae growth in lake washington near seattle. In 1960s, eutrophication of the lake was largely addressed by limiting levels of?.
In 1960s, eutrophication of the lake was largely addressed by limiting levels of phosphorus.
The largest of the three significant lakes in King County, Lake Washington is also the second-largest natural lake in the state of Washington. In the 1960s, phosphorus concentrations were found to be 70 parts per billion. That was more than enough to support the large growth of algae that discoloured the water and washed up on the shore where it rotted and smelled.
Between 1941 and 1963, the lake received increasing amounts of secondary treated sewage, which led to eutrophication and a decline in the lake's water quality. Eutrophication, often known as the overgrowth of algae and big aquatic plants, is a process that can be brought on by an excess of phosphorus. High phosphorus levels can also cause algal blooms, which can create toxins that are dangerous to both human and animal health.
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A student is studying the effect of testosterone in a specific signal transduction pathway. The student is using a special cell line that only contains testosterone receptors. Unfortunately, the student made an error when culturing the cells and all of the cells died! Thankfully a fellow classmate offered for the student to use their cell line. It is not the same cell line and does not contain the receptors that the student was studying. The student, however, points out that this is fine because there are other receptors that testosterone can bind to. Do you agree with this statement? Why or why not?
If the cell line does not contain the androgen receptors for testosterone this hormone (and related hormones neither) cannot bind to the target cell because the cell doesn't have receptors to bind for such hormone.
What is a hormone cell receptor?A hormone cell receptor is a structure in the cell that binds to hormone ligands depending on the specificity degree of this binding such as occurs in the case of androgen receptors and testosterone.
Therefore, with this data, we can see that hormone cell receptors are highly specific to bind hormone ligands.
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Match each function with the correct cytoskeletal structure.
A. Motor Proteins
B. Microtubles
C. Intermediate filaments
D. Actin
The cytoskeleton of a cell is made up of microtubules, actin filaments, and intermediate filaments. These structures give the cell its shape and help organize the cell's parts. In addition, they provide a basis for movement and cell division.
What are their functions?Each function with the correct cytoskeletal structure are as follows:
A.)Motor proteins:-Uses ATP to move vesicles within cells. Use ATP to bend filaments.
B.)Microtubles:-Chromosome sorting during mitosis.
C.)Intermediate filaments:-A strong structural protein that maintains cellshape.
D.)Actin:- Structural protein used to move cells. Structural protein used in muscle contraction.
What is ATP?Adenosine triphosphate (ATP) is the source of energy for use and storage at the cellular level. The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups.
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intrinsic reflexes are inborn and serve to protect the body. reflexes are neural pathways composed of five basic components. reflex arcs Riding a bike and driving a car are examples of learned reflexes are rapid, predictable, and involuntary motor responses to stimuli.
Rapid, dependable, and uncontrollable motor reactions to stimuli are known as reflexes.
Neural pathways called reflex arcs are made up of five fundamental parts.
Learned reflexes include things like riding a bike and operating a vehicle.
The body has inherent reflexes that function as a defense mechanism.
What are intrinsic reflexes?
The quadriceps reflex is an example of an intrinsic reflex. In contrast, extrinsic reflexes have receptors and effectors that are located in separate organs (e.g., the oculovestibular reflex).
Reflexes are actions made up of comparatively basic behavioral segments that typically happen as quick, immediate reactions to certain stimuli that are specifically connected with them.
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White patches on the surface of the tongue and the oral mucosa accompanied by inflammation and swelling are signs consistent with
A. zygomycosis
B. cryptococcosis
C. paracoccidioidomycosis
D. sporotrichosis
E. candidiasis
White patches on the surface of the tongue and the oral mucosa accompanied by inflammation and swelling are signs consistent with candidiasis. Correct answer: letter E.
Because Candidiasis is caused by overgrowth of the yeast Candida, which occurs naturally in the mouth.
What is candidiasis?Is an infection caused by a type of yeast called Candida. It can affect different parts of the body, including the skin, mouth, throat, and genitals. Symptoms may include:
ItchingBurningChanges in the appearance of the affected area.Treatment typically involves antifungal medications.
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Why can't yeasts produce ATP anaerobically indefinitely?
Yeasts can't produce ATP anaerobically indefinitely because at higher levels ethanol is a toxic waste product and causes cell disruption of yeasts.
What are yeasts?
Yeast, one of about 1,500 species of unicellular fungi, most of which belong to the phylum Ascomycota and a few to the phylum Basidiomycota. Yeast fungi are found on soils and plant surfaces worldwide and are especially common in sugar-rich media such as floral nectar and fruits.There are hundreds of economically important Ascomycota yeast cultivars. Species commonly used in the production of bread, beer and wine are selected strains of Saccharomyces cerevisiae. Several yeasts are dangerous pathogens of humans and other animals, most notably Candida albicans, Histoplasma, and Blastomyces.
Therefore, Yeasts can't produce ATP anaerobically indefinitely because at higher levels ethanol is a toxic waste product and causes cell disruption of yeasts.
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which of the following best explains why sickle-cell disease is a good candidate for studying genetic diseases?
Sickle-cell disease is a good candidate for studying genetic disease because ; to see if gene therapy can improve survival and prevent symptoms and complications associated with sickle cell disease, as well as to weigh the risks of gene therapy against the potential long-term benefits for sickle cell patients.
What is Genetic Disease?
Genetic diseases, also known as genetic disorders, are caused by changes in DNA, which are known as genetic mutations. Changes in the instructions for making a protein are caused by genetic mutations. Genetic mutations cause changes in the instructions for making a protein. These changes can prevent or alter protein function, as well as prevent protein production entirely. Genetic mutations are mostly inherited from our parents, which means that one or both of your parents passed them down to you.
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How can a change in one cycle affect all of the other cycles?
A change in one cycle can affect the other cycles because most ( if not all ) cycles on Earth are related in one way or another.
How are natural cycles related ?The natural cycles on Earth are related to each other because they often draw their energy from the same source which is the atmosphere, the oceans, and the Earth's crust . They also draw their energy from the sun as well .
For instance, the carbon cycle is related to the water cycle because water helps in the transportation of carbon to other areas where organisms can use it . It also helps in the weathering of rocks that contain carbon, thereby releasing it .
This means that a change in one cycle can affect the other cycles in nature if the change interferes with the way that cycle relates to other cycles .
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Which structure-function pair is mismatched? a. microtubule; muscle contraction b. ribosome; protein synthesis c. Golgi; protein trafficking d. nucleolus; production of ribosomal subunits
The structure-function pair is which was mismatched from the task above is microtubule; muscle contraction.
The correct answer choice is option a.
What is microtubule mismatched with the function of muscle contraction?The simple reason why microtubule is wrongly mismatched with the function of muscle contraction simply is that the microtubules help to support cell division and protection to cell shape. That being said, cell structures which are found within the cytoplasm are known as cytoplasmic organelles.
In conclusion, we can now confirm from the explanation given above that microtubules are found in the cytoplasm of eukaryotic cells.
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what are the resources for which weeds compete with turgrasses?
Answer:
Weeds and turfgrass struggle for water, nutrients, and light when they are left unchecked, but weeds win this conflict because they are more aggressive competitors than the majority of turfgrass species. Furthermore, the presence of weed species in turfgrasses lowers the utility, aesthetic value, and playing quality of the grass.
___________________
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Have a great day!
How is an element's atomic number like a person's fingerprint?
Which of the following is NOT a component of DNA?
a. The pyrimidine uracil
c. The purine adenine
b. Five-carbon sugars
d. Phosphate groups
Answer:
A
Explanation:
Which of the following statements about meiosis and mitosis is true?
a) In meiosis II and mitosis, a diploid cell divides.
b) Meiosis II is similar to mitosis in that sister chromatids of each chromosome separate.
c) In mitosis and meiosis I, homologous chromosomes move independently of each other.
d) Each daughter cell produced during meiosis and mitosis is genetically identical to the parent cell.
Sister chromatids of each chromosome separate during meiosis II, which is identical to mitosis in this regard.
The ideal answer is B.
Which of the following statements concerning meiosis and mitosis is true?What is the correct way to describe meiosis and mitosis? While the byproducts of mitosis are all the same, those of meiosis can vary from one another (except for rare mutations).
How do meiosis and mitosis differ from one another?Meiosis creates cells that are genetically distinct from the parent and have half the amount of DNA as mitosis, which creates two genetically identical "daughter" cells from a single "parent" cell. The majority of cells in the body constantly undergo mitosis, while some do it more frequently than others.
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What amino acid sequence would be produced from the dna sequence tac ccc gca agt?.
According to the genetic code, the amino acid sequence that would be produced from the DNA sequence tac ccc gca agt is Tyrosine - Proline - Alanine - Serine.
What is the genetic code?The genetic code is a universal code encrypted in the DNA nucleotide sequence that specifies the amino acids that will be added to the protein during translation.
The genetic code is composed of triplets of nucleotides called codons that indicate specific amine acids during polypeptide synthesis, for example, the codon gca encodes for the amino acids alanine, while ccc encodes for proline.
Therefore, with this data, we can see that the genetic code is a code based on the linear order of nucleotides that are present in a given DNA nucleotide sequence and indicates the amino acids that will be added to the protein during the translation process in the cell.
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Describe a hypothesis that explains the species area relationship
gluconeogenesis is the conversion of pyruvate to glucose. several cofactors are needed in this metabolic pathway. the overall unbalanced reaction is shown.
The complete equation to produce 1 glucose equivalent:
2Pyruvate + 2NADH + 4ATP + 2GTP ⇒ 1 glucose + 2NAD⁺ + 4ADP + 2PDB + 6P
Gluconeogenesis is the process of synthesizing or making glucose from non-carbohydrate compounds in the body. This process occurs when glucose levels are not available, so the body converts amino acids or glycerol into glucose to then be used as energy for the body.
Glucose will be made from other non-carbohydrate compounds and molecules, such as:
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Viruses are considered to be non-living pathogens for which reason?
a) their extremely small size
b) their unique type of cells and their lack of metabolic processes
c) their lack of metabolic processes
d) their ability to synthesize only some of their own components
e) their unique type of cells
Viruses are considered to be non-living pathogens due to their lack of metabolic processes. Therefore, option (C) is correct.
What is a virus?Viruses are complex assemblages of molecules that include proteins, nucleic acids, lipids, and carbohydrates; but, on their own, they are unable to perform any function and must first infect a living cell in order to become active. There would be no possibility of viral reproduction if cells did not exist. Consequently, viruses do not qualify as living beings.
Viruses are not alive because they do not have any of the essential components that are present in living beings. These components include cytoplasm and organelles. They are unable to carry out the duties of the cell such as metabolism and homeostasis.
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When the concentration of ___
in tissue fluid is too high, intracellular fluid moves into the extracellular fluid compartment.
sodium ions
cesium particles
soluble fibers
immature osteoblasts
When the concentration of sodium ions in tissue fluid is too high, intracellular fluid moves into the extracellular fluid compartment.
What is Intracellular fluid?
The fluid that resides within of cells is called intracellular fluid. The fluid located outside of cells, or extracellular fluid, is known as interstitial fluid. Extracellular fluid is classified into two categories: fluid found in blood and fluid found outside blood.
Phosphorus (PO4 P O 4 ), magnesium (Mg2+ M g 2 +), and potassium (K+) are a few of the major electrolytes found in intracellular fluid.
Therefore, Option A is correct.
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