Nucleotide is referred to as the part of the DNA model which is most directly associated with the coding of genetic information.
What is DNA?This is referred to as deoxyribonucleic acid and it is the genetic material of most living organisms and it ensures that traits are passed from the parent to the offspring.
The nucleotide is present in it and consists of different compounds such as sugar molecule such as deoxyribose, a phosphate group and a nitrogen-containing base. This part is where the coding of genetic information takes place during reproduction thereby making it the correct choice.
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There are five elements of a universal systems model: goal, inputs, processes, outputs, and feedback. Which of the following describes the "processes" portion of this model?
A.
information collected from the outputs
B.
the money, time, and resources used on the model
C.
what is done to the inputs
D.
the results of the system
Option C. what is done to the inputs is the "processes" portion of the universal systems model.
Strategies ways To treat something, or To deal with facts. so right here we method the inputs to get a result.
The universal systems model suggests To treat something, or To cope with statistics". so here we process the inputs to get an end result. The time-honored systems version (Fig. 1) is a standard conceptualization of how a technique can be represented.
There are 4 basic elements to the version of the system: output, process, enter, and comments. The method represents the operations that arise to transform the inputs into the desired outputs.
The commonplace systems version is an attempt to graphically depict methods of every type. Viewing something through the scheme of the prevalent systems model is an try and simplify something that is relatively complicated.
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white blood cells have been trained to recognize body cells, called , and distinguish them from foreign material that is called .
White blood cells have been trained to recognize body cells called lymphocytes and distinguish them from foreign material that is called antigens.
What are white blood cells?White blood cells are also called leucocytes and they are types of blood cell that is involved with an immune response, or part of the immune system.
The white blood cells of the immune system are involved in protecting the body against both infectious disease and foreign invaders.
Antigens are substances that induces an immune response and are usually foreign invaders. The white blood cells helps the identify this antigens and separate them from lymphocytes.
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The highlighted structure is called ___ and it is proportionally _in human compared to the similar structure in the sheep brain.
The highlighted structure is called Olfactory bulb and it is proportionally smaller in human compared to the similar structure in the sheep brain.
The neuronal component of the vertebrate forebrain responsible for olfaction, or the sense of smell, is known as the olfactory bulb (Latin: bulbus olfactorius). It delivers olfactory data to the amygdala, orbitofrontal cortex (OFC), and hippocampus for further processing, where it plays a role in emotion, memory, and learning. The main olfactory bulb and the accessory olfactory bulb are two separate components that make up the bulb.
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Which of the following is true of predators affecting prey populations? predator and prey populations can repeatedly and dramatically fluctuate prey populations that reach their carrying capacity are large enough to avoid predation a prey population cannot be impacted by both intraspecific competition and predation peak prey abundance usually lags behind peak predator abundance
Option B is true that Predator and prey populations can repeatedly and dramatically fluctuate.
An organism that consumes another organism is a predator. The organism that the predator consumes is the prey.
The number of predators and prey varies, and this varies depending on the number of predators. The prey population would decrease if the predator population increased, which would increase predation on prey. Predators will also decrease if the prey population remains low for some time. as a predator relies on its prey for food. As a result, depending on their number, both the predator and the prey display frequent and dramatic changes.
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(complete question)
Which of the following is true of predators affecting prey populations?
a. A prey population cannot be impacted by both intraspecific competition and predation.
b. Predator and prey populations can repeatedly and dramatically fluctuate
c. Peak prey abundance usually lags behind peak predator abundance
d. Prey populations that reach their carrying capacity are large enough to avoid predation.
2.2 L of hydrogen at 6.5 atm pressure is used to fill a balloon at a final pressure of 1.15 atm. What is its final volume?
The final volume is 12.43 L.
Use the formula P1V1 = P2V2
Here,
P1 = initial pressure, given = 6.5 atm
V1 = initial volume, given = 2.2 L
P2 = final pressure, given = 1.15 atm
V2 = final volume
Put these values in formula P1V1 = P2V2
V2 = 6.5 × 2.2 / 1.15
V2 = 12.43 L
Hence, The final volume is 12.43 L.
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are responsible for coating neural fibers with an insulating fatty sheath. a. glial cells b. neurotransmitters c. brain waves d. synapses
Glial cells are responsible for coating neural fibres with an insulating fatty sheath.
Thus, the correct answer is A.
What are glial cells?Gliаl cells аre а type of cell thаt provides physicаl аnd chemicаl support to neurons аnd mаintаin their environment. Locаted in the centrаl nervous system аnd peripherаl nervous system, gliаl cells аre sometimes cаlled the "glue" of the nervous system, аs well аs neurogliа or just gliа.
The bаsic аct of leаrning whether one’s environs аre sаfe or not, а behаvior common to аll аnimаls, depends on gliаl cells thаt form the fаtty sheаth cаlled myelin - electricаl insulаtion thаt covers nerve fibres.
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what are the chemical required to start a chemical reaction called
Answer: Reactants
Explanation:
Substances that start a chemical reaction are called reactants.
Answer: Reactants
Explanation:
A student observes a cell under a microscope. She sees a cell wall and a nucleus. What type of cell is she observing?.
Presence of a cell wall indicates that the cell observed by the student is a Plant cell.
The cell is the simplest, functional and the building block of all known living organisms. Robert Hooke(1665) observed honey-comb like dead substances in a thin slice of cork and named them cell. Anton Von Leeuwenhoek (1667) was the first to describe a living cell.
The contents present inside a cell are called cellular organelles. In case of a plant cell they are Cytoplasm, Mitochondria, Ribosomes, Plastids, Vacuole, Peroxisome etc.
Cell wall in plant cell consists of four layers namely primary cell wall, secondary cell wall, middle lamella and tertiary cell wall. It is interesting to note that here meristematic and parenchymatous cells consist of only the primary cell wall.
The cell wall of a cell maintains it's shape , girth and protects the cell from mechanical injury. It also wards off pathogens.
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What is an important contribution of climate prediction models?.
The use of climate models can help us better understand and predict how the climate will behave on a seasonal, yearly, decadal, and centennial time scale.
To understand the complex systems of the earth, scientists use climate models. They can test theories and make predictions about past and future climate systems using these models. This can assist them in determining if unusual weather occurrences or storms are a result of climatic changes or are merely a result of regular climate variance.
For example, scientists can use climate models to forecast the number of tropical cyclones that may form off the coast and the areas where they are most likely to make landfall during hurricane season.
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The three-layer fibrous membranes surrounding the brain and spinal cord are collectively called the?.
The three-layer fibrous membranes surrounding brain and spinal cord are called : meninges.
What do you understand by meninges?Three layers of membranes that are known as meninges protect the brain and spinal cord. The delicate inner layer is called pia mater, middle layer is called the arachnoid which is a web-like structure filled with fluid that cushions the brain and the tough outer layer is called dura mater.
The meninges are three membranes that envelop the brain and spinal cord and separate them from walls of their skull and vertebral column.
Based on their location, meninges are called the cranial meninges which envelops the brain and spinal meninges which envelops the spinal cord.
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anemia is a medical condition in which the affected person lacks enough red blood cells what to effects will such a condition have on the patient?
1.) the patient will have less hemoglobin in the blood
2.) The patient will have less immunity against bacteria
3.) The patient will have a reduced oxygen supply in the cells
4.) The patient will have a thicker blood composition
5.) The patient will have increased platelets in the body
Answer:
The patient will have reduced oxygen supply in the cells
Security systems configured by the same security administrator can potentially have the same misconfiguration or design weakness.
When security settings are not properly defined throughout the setup process, maintained, and delivered, security misconfiguration happens.
What is a system administrator for security?This position is in charge of installing, configuring, and maintaining hardware and software, creating and managing user accounts, supervising or performing backup and recovery procedures, and implementing operational and technological security, to name just a few.
Why is system security so crucial to system management?The security of this bigger system or network is the responsibility of the system administrator. In addition to protecting the network from outsiders trying to access it, it's crucial to guarantee the accuracy of the data stored on the systems there in the system.
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What did Martin Luther accuse the Catholic Church of?.
When Martin Luther, the primary force behind Protestantism, wrote his 95 theses denouncing the Catholic Church for its corrupt practice of selling indulgences, or the remission of sins, as he was a professor in Germany.
The fact that the Catholic Church of his day was basically selling indulgences troubled Luther; in fact, according to Professor MacCulloch, they assisted in funding the renovation of Rome's Saint Peter's Basilica.
Martin Luther grew increasingly enraged at the clergy for hawking "indulgences," which promised absolution from sin-related punishments for either the living or the dead who were thought to be in purgatory. He published his "95 Theses" on October 31, 1517, denouncing indulgence sales and papal abuses.
The fact that the Catholic Church of his day was basically selling indulgences troubled Luther; in fact, according to Professor MacCulloch, they assisted in funding the renovation of Rome's Saint Peter's Basilica.
Later, Luther abandoned his belief in purgatory. Without a doubt, he insisted that faith alone was what mattered and that no one's deeds could save them. The sale was prohibited after the indulgences of the pope in 1567.
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two species may successfully mate but the resulting zygote cannot successfully develop or breed. this is an example of a isolating mechanism.
This is an example of a post zygotic isolating mechanism.
What is post zygotic isolating mechanism?Post zygotic isolating mechanism is defined as the process that leads to the production of offsprings or zygotes that are sterile, that is, that can't on their own, develope and be able to reproduce.
A zygote is defined as the developing cell that is formed after the fusion of a male and female gametes.
In the post zygotic isolating mechanism involves the following barriers:
Hybrid Zygote Abnormality,Hybrid Infertility, andLow Hybrid Viability.Therefore, post zygotic isolating mechanism occur when sterile offsprings are formed after the successful of two species.
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Since two species may successfully mate but the resulting zygote cannot successfully develop or breed. this is an example of postzygotic isolating mechanism.
What is the mechanism of post-zygotic isolation?When a hybrid's fitness is persistently lower than that of either of its parents species, regardless of the environment, this is known as an intrinsic postzygotic barrier. Examples of such barriers include hybrid sterility or inviability.
Note that the development of sterile offspring, hybrid inviability, and hybrid disintegration are examples of post-zygotic isolation mechanisms. So, "Hybrid sterility" is the right response.
So, Hybrid sterility, hybrid inviability, and hybrid "breakdown" are examples of postzygotic processes. A group of creatures that are reproductively distinct from one another is referred to as a species.\
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the production and conduction of action potentials in the heart produces a recordable tracing of the electrical activity of the heart called a(n) .
The production and conduction of action potentials in the heart produces a recordable tracing of the electrical activity of the heart called an ECG.
An electrocardiogram (ECG or EKG) measures the electrical signal coming from the heart to look for different cardiac diseases. Electrodes are positioned on the chest to capture the electrical impulses that drive heartbeat. On a connected computer monitor or printer, the signals are shown as waves.
The heart's many muscle contractions are coordinated by natural electrical impulses to maintain proper blood flow. These electrical impulses are captured by an ECG to provide information about the heart's rate, rhythm (steady or irregular), and the strength and timing of the electrical impulses as they pass through the various heart chambers.
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the action of the repressor on the expression of the lac operon is an example of: group of answer choices positive control negative control
The action of the repressor on the expression of the lac operon is an example of negative control.
Operon: A set of genes transcribed under the control of an operator gene. More specifically, an operon is a segment of DNA containing adjacent genes including structural genes, an operator gene, and a regulatory gene. An operon is thus a functional unit of transcription and genetic regulation.Both mechanisms are present in the lac operon. Because expression is often restricted by an active repressor (the lac repressor) that turns off transcription, it is a negative control system. The lac repressor attaches to the operator region and inhibits transcription from taking place.
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What phase of the cell cycle are chromosome pairs separated by the retraction of spindle fibers?.
The phase of the cell cycle during which pairs of chromosomes are segregated by the retraction of spindle fibers is Anaphase.
The anaphase stage of cell cycle can be seen in mitosis as well as meiosis. During this phase, the chromosome pairs split and begin to move away from each other, towards the opposite poles of the cell. The Anaphase stage is marked by certain important events such as the splitting of centromeres as well as the segregation of chromatids.
Anaphase takes place after the Metaphase stage of cell division. The chromosomes which are aligned along the metaphase plate by means of spindle fibers to both poles of the cell during Metaphase are separated during Anaphase.
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2. explain the mechanisms of cis and trans regulation that allow for normal splicing of eukaryotic pre-mrnas.
RNA splicing puts together the protein-coding regions (exons) and cuts out the intervening, non-coding segments of genes (introns) from pre-mRNA.
The majority of splicing happens between exons on a single RNA transcript, but trans-splicing, in which exons from various pre-mRNAs are ligated together, occasionally happens. The splicing procedure takes place in cellular machines called spliceosomes, which also contain additional proteins and the snRNPs.
The joining of exons from the main RNA in a 5′ to 3′ order is known as cis-splicing. Exon scrambling is the joining of exons from the main RNA in such a way that the 3′ and 5′ exons are placed in front of each other. The linking of exons from several parent RNAs is known as trans-splicing.
regulators of cis and trans-splicing that affect spliceosome activity/binding
RNA patterns called exonic/intronic splicing enhancers/suppressors serve as cis regulators (e.g., ESE)Trans regulators are proteins that bind cis motifs; these proteins compete with tissue-specific regulators and repressive heterogeneous nuclear ribonucleoproteins (hnRNPs) to promote splice site usage.To know more about RNA splicing visit the link:
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In selecting recombinant bacteria, cells are chosen that are resistant to a specific antibiotic. How are the bacteria made resistant?.
In selecting recombinant bacteria, cells are chosen that are resistant to a specific antibiotic, The antibiotic resistance gene is encoded on the donor insert.
What is antibiotic?Antibiotics refer to a class of antibacterial substances that act against bacteria.This is the main type of antibacterial agent used to fight bacteria. These drugs usually inhibit the formation of the bacterial cell wall or its cellular contents. Bacteriostatic agents prevent the growth of bacteria. Antibiotics are drugs that fight infections in humans and animals caused by bacteria by either killing them or making it difficult for them to grow and multiply. Vancomycin 3.0 is one of the most powerful antibiotics ever developed. Used to treat conditions such as meningitis, endocarditis, joint infections, bloodstream infections, and skin infections caused by methicillin-resistant Staphylococcus aureus.To learn more about antibiotic from the given link :
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The small, genetic changes that occur from generation to generation within a population or species are called?.
The small, genetic changes that occur from generation to generation within a population or species are called microevolution.
microevolution: An allele is a variant form of a particular gene. It is one of the two or more versions of a mutation at a particular location on a chromosome that is typically known. Simply put, it is a physical trait that is expressed across a population, resulting in subtle changes. However, the immediate changes do not primarily affect the offspring. It can likewise be characterized with regards to the Strong Weinberg harmony - "the allele frequencies change assuming any of the rules of Solid Weinberg balance isn't satisfied".
It's also important to remember that the accumulation of changes from the microevolution process can lead to speciation, which serves as a raw material for the macroevolution process. As a result, it is possible to deduce that macroevolution and microevolution follow similar processes, with the time scale being the difference.
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the miller-urey experiment demonstrated conditions in which early organic molecules necessary for life could be formed. was this environment biotic or abiotic and why?
The equipment turned into abiotic as it imitated atmospheric situations of early earth wherein oxygen turned into uncommon and residing organisms did now no longer exist.
The conventional Miller-Urey test validated that amino acids, essential constructing blocks of organic proteins, may be synthesized the usage of easy beginning substances below simulated prebiotic terrestrial situations.
Urey achieved an test to explain the foundation of lifestyles on earth. They had been of the concept that the early earth's ecosystem turned into capable of produce amino acids from inorganic matter. The biologists made use of methane, water, hydrogen, and ammonia which they taken into consideration had been determined withinside the early earth's ecosystem.
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What is the relationship between expected population growth over the next two decades and climate change?.
The relationship among predicted population increase over the following a long time and weather alternate is a growing population results in elevated use of sources and increases severe questions on the ability of the planet to preserve humanity.
A variety of nations are trying to address this shared trouble via worldwide cooperation and with their very own country wide measures. Population increase, along side growing intake, has a tendency to boom emissions of weather-converting greenhouse gases. Rapid populace increase worsens the affects of weather alternate via way of means of straining sources and exposing greater human beings to weather-associated risks—specially in low- aid regions. No easy courting exists among population length and environmental alternate.
However, as international population maintains to grow, limits on such international sources as arable land, potable water, forests, and fisheries have come into sharper focus. The effect of such a lot of human beings at the surroundings takes foremost forms: intake of sources which include land, food, water, air, fossil fuels and minerals. waste merchandise due to intake which include air and water pollutants, poisonous substances and greenhouse gases.
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What species of fungus is used in produced of acid wash jeans to give them their distinct faded look?.
For one-third of the cost of the enzymes, the fungus Myceliopthora thermophila may produce the stone-washed effect on jeans
What kind of fungus is used to make acid wash jeans ?Trichoderma is a component of stone-washed jeans and has potential as a biocontrol agent. Deuteromycetes can also cause harm to humans. Verticillium is one of these fungi that can harm plants because it can cause a vascular wilt in trees.
The antique stone wash effect was once achieved using pumice stones. The use of stones has a variety of drawbacks, like as equipment expenses and fabric degradation. These days, biostoning with Trichoderma reesei is employed to do this.Learn more about Fungus here:
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Mrna is synthesized in the _______ direction, which corresponds to the _______ of the protein.
The mRNA is synthesized in direction 5' to 3' which corresponds to the N to C terminus.
Single-stranded RNAs of the type known as messenger RNA, or mRNA, are used to make proteins. mRNA is created during transcription from a DNA template. The function of mRNA is to transport protein information from DNA in a cell's nucleus to the cytoplasm, or watery interior, where the machinery responsible for making proteins reads the mRNA sequence and converts each three-base codon into an amino acid that belongs in a protein chain that is expanding.
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Which best describes Web Bois opinion of the Booker T Washington accommodationist approach?.
It reinforced segregation and discrimination.
On the other hand, Du Bois openly criticized Washington's approach and underlined the value of intellectual rigor and equality for African Americans in all spheres of American life, without exception. He verbally attacked Washington in his 1903 book The Souls of Black Folk more than anywhere else.
The importance of African Americans being technologically educated was recognized by both Washington and DuBois. DuBois proposed a paternalistic method of advancing the Black race, in contrast to Washington's hands-on exterior strategy.
Presidents McKinley and Theodore Roosevelt respected him for his work and reputation and sought his advice on racial issues.
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what does this combination of offspring tell her about the genetic makeup of the red geranium parent? responses the red geranium is homozygous for red flowers (rr). the red geranium is homozygous for red flowers , (uppercase r r ), . the red geranium is homozygous for white flowers (rr). the red geranium is homozygous for white flowers , (lowercase r r ), . the trait shows incomplete dominance. the trait shows incomplete dominance. the red geranium is heterozygous for red flowers (rr). the red geranium is heterozygous for red flowers , (uppercase r lowercase r ), . skip to navigation previous 2, fully attempted. 3, fully attempted. 4, fully attempted. 5, fully attempted. 6, fully attempted. 7, unattempted. 8, unattempted. 9, unattempted. 10, unattempted. 11, unattempted.next
The red geranium is heterozygous for red flowers (Rr).
We know that the red flower, to be red needs to have at least a dominant allele, so it could be either Rr or RR.Let's try both the ways.If the white geranium (rr) is being crossed with RR, all the offspring would be red with genotype: Rr.On the other hand, if the flower is Rr and it's being crossed with rr, that would result in half of the new generation plants having red flowers and the other half white flowers.A horticulturist seeks to cultivate geraniums with particular qualities. She is aware that the allele R (RR and Rr) controls the characteristics of red flowers, while the allele r controls the characteristics of white blossoms (rr).To know more about geranium check the below link:
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What is the purpose of including a pcr reaction with no added dna? isn’t this just a waste of expensive enzyme when we know that without the template, you will not get any pcr products?.
This is control meant to show whether or not there is DNA contamination in any of the solution used. this is the purpose of including a pcr reaction with no added dna.
What is DNA?Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid. The DNA of an individual can be found in almost all of their cells. The majority of DNA is found in the cell nucleus (where it is known as nuclear DNA), but there is also a tiny quantity of DNA in the mitochondria (where it is called mitochondrial DNA or mtDNA).
Adenine (A), guanine (G), cytosine (C), and thymine (C) are the four chemical bases that make up the code that stores the information in DNA (T). More than 99 percent of the 3 billion bases that make up human DNA are the same in every person. Similar to how the letters of the alphabet occur in a specific order to form words and sentences, the order, or sequence, of these bases dictates the information accessible for creating and maintaining an organism.
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Please help me with this
What is needed for cell proliferation?.
Cell proliferation occurs by combining cell growth with regular "G1-S-M-G2" cell cycles to produce many diploid cell progeny.
A proliferating cell must duplicate every component of its biological makeup in order to undergo mitosis and create two healthy daughter cells. This places a heavy demand on lipids, amino acids, and nucleotides. During growth, glucose is utilized to make ATP and biomass.
Cell growth and regular "G1-S-M-G2" cell cycles are combined to produce numerous diploid cell progeny, which is the process of cell proliferation. Cell proliferation in single-celled organisms is mostly influenced by the presence of nutrients in the surrounding environment.
Cell growth and the cell cycle are combined to produce numerous diploid cell progeny during cell proliferation, the process by which a cell develops and splits to produce two daughter cells.
The external growth factors and the intracellular gene regulatory network tightly regulate this process.
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Hemoglobin is a protein that binds to oxygen. It is only produced by red blood cells and it allows blood to transport oxygen throughout the body.
What statement does this information best demonstrate?
A.
Proteins with similar functions to those produced in humans can be found in other species.
B.
The proteins produced by cells have structures that are related to their function.
C.
Specialized cells that are grouped together and perform similar functions are called tissues.
D.
Proteins in specialized cells are the result of the expression of particular genes.
The best demonstrated statement from the information about hemoglobin protein binding to oxygen and produced from RBCs is that: (B) The proteins produced by cells have structures that are related to their function.
Hemoglobin is a red colored pigment found in the blood. It has a quaternary structure of protein with 2 alpha and 2 beta subunits. A molecule of hemoglobin can bind to 4 oxygen molecules at once.
Proteins are polymers of amino acids. The primary structure of protein consisting of amino acid linear chain sequence determines the further folding of protein into advanced structures. The correct folding of protein is necessary for it to exhibit its functionality.
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