To activate the myofiber, neurons must pass through the endomysium structure.
What enters the sarcoplasm and opens the sarcoplasmic reticulum's gates?The impulse travels from the T-TUBULES to the SARCOPLASMIC RETICULUM. 3. The membrane's calcium gates in the Sarcoplasmic Reticulum (SR) open as the impulse passes through it. CALCIUM therefore diffuses between the myofilaments and outside the SR as a result.
The sarcoplasmic reticulum is activated by what?An electrical impulse (action potential) in cardiac and smooth muscle cells causes calcium ions to enter the cell through an L-type calcium channel positioned in the cell membrane (smooth muscle) or T-tubule membrane (cardiac muscle).
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If the frequency of pku, an autosomal recessive disease, is 1% in males, what is the frequency of females with pku?.
If the frequency of PKU, an autosomal recessive disease, is 1% in males, then the frequency of females with PKU is expected to be equal (1%) in females since an autosomal recessive disease affects an autosomal (non-sexual) chromosome.
What is an autosomal recessive disease?An autosomal recessive disease is any genetic condition associated with the transmission of gene variants or alleles present on autosomal chromosomes, which are non-sexual chromosomes inherited in equal proportion in both sexes (i.e, in females and males).
The proportion of autosomal recessive diseases is expected to be roughly equal both in females and males due to these chromosomes are present in the same proportion for both.
Therefore, with this data, we can see that autosomal recessive diseases are conditions inherited by the transmission of defective alleles present in the autosomal chromosomes, which are non-sexual chromosomes that are inherited in equal proportion regardless of the sex (i.e. both in females and males).
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the changes in the u.s. workforce that create challenges for human resource managers include:
The responses to the given question can be defined as the changes in the us workforce that create challenges for human resource managers.
What has been required by the violence?The variety and unequal outcomes wouldn't necessarily think violence requiring equal outcomes. Its elephants throughout the space have poor results between black with modest salaries. So being frank, higher related infant mortality, STDs but no school option should occur. Poor schools, poor police-citizens relations, gangs, security, etc.
Get a look at the root causes of the problem and take a good look at it. What we did not see now but the new BLM profile will not function. Black liberal arts colleges have for ages only spoken of creative approaches to also be mocked and they're not black enough. Shoot back, it was a cop.
Therefore, The responses to the given question can be defined as the changes in the us workforce that create challenges for human resource managers.
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Which component of eukaryotic cells is critical for the correct sorting and transport of proteins?.
In eukaryotic cells, the endomembrane system is a collection of organelles and membranes that collaborate to transport, package, and alter lipids and proteins.
Protein classification is carried out by what organelle?Proteins from the ER are further processed and sorted in the Golgi apparatus, or Golgi complex, where they are then transported to their final locations—lysosomes, the plasma membrane, or secretion—for use in other processes.
Which cell is in charge of sorting the items that will be transported?Flattened sacs are layered one on top of the other to form the Golgi body. Its purpose is to process secretory and synthetic products coming from the ER before delivering the final goods into various cell regions or secreting them outside the cell.
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What is the purpose for assigning two names to classify organisms?
Latin requires two words to name things.
The scientist who discovers the organism can assign a name.
The naming convention is the same throughout the world.
It shows how all organisms are different.
Latin requires two words to name things.
Each living thing has a two-part name that identifies both the genus and the particular species of the thing.
What is organisms?Every recognized species on earth is given a two-part scientific name, at least in theory. The term "binomial nomenclature" refers to this system. These names are significant because they enable clear communication about animal species among people all across the world.Every recognized species on earth is given a two-part scientific name, at least in theory. The term "binomial nomenclature" refers to this system. These names are significant because they enable clear communication about animal species among people all across the world.On this planet, there are literally millions of these organisms. In order to categorize the information about them, we need names for these organisms so that we can then catalog all of the information according to how organisms are related to one another and how they have evolved.To learn more about organisms refer to:
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In selecting recombinant bacteria, cells are chosen that are resistant to a specific antibiotic. How are the bacteria made resistant?.
Bacteria are made resistant by encoding the antibiotic resistance gene on the donor insert. On this basis, they are pre-selected for the experiment.
What is recombination in bacteria?
In recombination, genetic material is transferred from one bacterial cell to another.
Recombination in bacteria is of three types:
Transformation: foreign DNA is taken up by the bacterial cell from the environment. The free DNA being transferred from the donor, the surroundings which are extracellular, results in assimilation and an expression of the acquired characteristics in the recipient bacteria. This is known as bacterial transformation.
Transduction: when DNA is moved from one bacterial cell to another by a virus or bacteriophages.
Conjugation: DNA is transferred between two bacterial cells via a tube. Conjugation is the exchange of genetic material between two cells who are in contact with each other.
Therefore, Bacteria are made resistant by encoding the antibiotic resistance gene on the donor insert.
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In a certain species of rabbits, black coat color is dominant over brown coat color. What is the probability of producing a rabbit with brown coat color from two rabbits that are both heterozygous with black coat color?.
If the 2 variations are one of a kind, you've got a heterozygous genotype for that gene. for example, being heterozygous for hair shade could suggest you have one allele for crimson hair and one allele for brown hair. the connection among the 2 alleles impacts which developments are expressed.
Homozygous and heterozygous are phrases which can be used to describe allele pairs. individuals sporting identical alleles (RR or rr) are called homozygous. even as individual organisms bearing one of a kind alleles (Rr) are called heterozygous.
Heterozygous is a time period used in genetics to explain when two versions of a gene, referred to as alleles, are paired on the equal vicinity (locus) on a chromosome. by using comparison, homozygous is while there are two copies of the equal allele on the identical locus.
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which of the following is not a probable explanation for the threshold of lactate appearance in the blood?
The threshold of lactate appearance in the blood cannot be explained by a high rate of carbohydrate metabolism.
How can I locate the graph's lactate threshold?How to determine lactate threshold: On a graph, the relationship between your blood lactate concentration and effort will be shown. The increase in lactate during exercise is largely linear up until your lactate threshold (LT), at which time the slope of the displayed line sharply increases; this is known as the inflection point.
The lactate threshold is where?Maximum steady-state exercise or "tempo runs" are terms frequently used to describe steady-state training at the lactate threshold. According to research, the lactate threshold is reached by trained persons at 80–90% of heart rate reserve (HRR) and by untrained individuals at 50–60% HRR (Weltman).
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In what ways are red invasive fire ants (rifas) costly? (site 1)
Red invasive fire ants (RIFA) are costly because they can cause severe damage in variety of fields like in agricultural crops, in constructed building as well as electrical equipment. They can even kill the tissues of the person they sting by injecting some poison on to the area.
RIFA are the species of ants that are native to South America. They are simply called the fire ants. The species are believed to be spread in the soil carried through the cargo ships that then became spread profusely. Since they can reside at any area they are estimated to cause million dollars of damage every year.
Tissues are the aggregate of cells of similar type that come together in order to perform a similar function in a coordinated manner. There are different types of tissues in plants and in animals.
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Why is the cell membrane sometimes called the fluid mo-
saic model?
A Many small pieces make one moving design.
B
There is a lot of water in the cell membrane.
C The man who discovered its structure was named Mosaic.
D The cell membrane keeps fluids in the cell.
The cell membrane is sometimes referred to as the fluid mosaic model because A. Many small pieces make a single moving design (i.e. proteins arranged spread out like a mosaic).
The cell membrane, also known as the plasma membrane, is a thin structure consisting of two layers of lipids (lipid bilayer). Among the lipids consist of integral proteins and peripheral proteins arranged in a mosaic that surrounds a cell and each is inserted between two layers of lipids of a fluid consistency. Lipid molecules in cell membranes are amphiphilic, that is, they have a hydrophilic (polar) group on the head and a hydrophobic (non-polar) group on the tail. The cell membrane also consists of oligosaccharides, glycolipids, and cholesterol. Cholesterol is between the phospholipid molecules, and its presence can be reduces the fluidity of the cell membrane.
A gene called p53 code for a protein which ultimately hut off cell diviion if damaged DNA i detected. Which would be the mot likely outcome of cell diviion if the p53 gene mutate and no longer function?
Anwer option with 5 option
A. Cell diviion would be hut down completely. B. Cell diviion would reult in more cell with damaged DNA. C. Cell diviion would reult in fewer cell with damaged DNA. D. Cell diviion would reult in maller cell. E. Cell diviion would reult in cell identical to the normal cell
The likely effect of mutated p53 on cell division will be (B) Cell division would result in more cell with damaged DNA.
p53 is a gene also known by the name cellular tumor antigen p53. The gene encodes for a protein that is crucial for cancer prevention in humans. It regulates the cell division and growth of defective cells by either halting the division or causing cell death of the defective cell.
Cell division is the process of forming daughter cells from a cell by distributing its cytoplasm and nucleus into two parts. The daughter cells are genetically identical to the parent cell. Cell division can be of two types: Mitosis and Meiosis.
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when the urinary bladder is full, receptors on the surface send a signal to the brain notifying it that the bladder is full. this is an example of a/n
When the urinary bladder is full, receptors on the surface send a signal to the brain notifying it that the bladder is full this is an example of a visceral sensory message.
The viscera, or internal organs, are the source of visceral sensory information. In order for the CNS to control their regulation, sensory neurons closely monitor the heart, lungs, stomach, and bladder.
Visceral sensory neurons keep an eye on the organ systems and internal surroundings. The somatic fibers in the peripheral nerves innervate the skin, muscles, joints, and body walls. Similar to this, internal organs and blood vessels are innervated by visceral fibers.
A visceral sensory region of the neocortex, the insular cortex (deep to sylvian fissure), receives input from the thalamus (ventral posterior nuclei). A visceral motor region of the neocortex is the medial frontal cortex, also known as the rostroventral cingulate gyrus.
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What general role does acetylation of histone protein amino acids play in the transcription of eukaryotic genes?.
Answer:
Histone acetylation events are most often associated with transcription activation.
Explanation:
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The phenotypic ratio of the f2 generation of the dihybrid cross in mendel’s experiment with pea plant was?.
His dihybrid cross yielded nine plants from F2 offspring with a 9:3:3:1 ratio.
How frequently do pea plants produce F2?Mendel repeatedly noticed a 3:1 phenotype ratio in the F2 generation, which is the offspring of monohybrid crosses, between plants with the dominant and recessive phenotypes.
About 25% of the pea plants' F2 generations, what did Mendel discover?Mendel's initial research with pea plants is shown in this diagram. All of the flowers in the F1 generation, which was produced by the cross-pollination of two parent (P) plants, were purple. Self-pollinated F1 plants produced the F2 generation, which had 25% white and 75% purple flowers.
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how could you adjust the radius of the efferent arteriole to compensate for the effect of reduced blood pressure on the gfr
Lower blood pressure would be made up for by either expanding the afferent radius or contracting the efferent radius.
The best way to offset the impact of low blood pressure on the glomerular filtration rate is by afferent arteriole dilatation. The glomerular filtration rate and blood pressure can both be maintained at normal levels thanks to this change. The opposite happens when the afferent arteriole's diameter is reduced. Reduced resistance results in an increase in efferent arteriolar diameter, which lowers the glomerular capillary hydrostatic pressure and lowers GFR. The opposite happens when the efferent arteriole's diameter is reduced. Afferent arteriole constriction has two effects: it lowers pressure downstream from the constriction, which lowers the GFR; and it raises vascular resistance, which decreases renal blood flow (RBF).
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This type of muscle contractions are responsible for the constant length of body's postural muscles, such as the muscles of the back.
Isomeric muscle contractions are responsible for the constant length of body's postural muscles.
Isometric contractions are contractions that is responsible for no change in the length of the muscle. No motion in joint or in limbs occurs. Isometric exercises are generally related to tightening (contractions) of a specific muscle or many muscles associated with each other of muscles.
During Isometric exercises, the muscle doesn't relatively changes their length. Also the affected joint also doesn't move. Isometric exercises help to maintain strength.
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What do carbohydrates not contain? *
O Hydrogen
O Carbon
O Water
O Oxygen
Answer:
Water
Explanation:
Carbohydrates are composed of carbon, hydrogen, and oxygen and have a general formula that approximates CH2O. They are polyhydroxy aldehydes or ketones or form polyhydroxy aldehydes or ketones when hydrolyzed. Carbohydrates occur as monosaccharides, disaccharides, oligosaccharides, and polysaccharides
Coactivation is a phenomenon in which contraction of an agonist muscle leads to _______ in the antagonist muscle.
Using the theories of muscles, we got that Coactivation is a phenomenon in which contraction of an agonist muscle leads to provide joint stability in the antagonist muscle.
Muscle coactivation occurs when the agonist and the antagonist muscles (or synergist muscles) surrounding the joint contract simultaneously to provide joint stability. It is also known as the muscle contraction, since two muscle groups are contracting at same time.
The phenomenon of the agonist-antagonist muscle coactivation is discussed with respect to its consequences for the movement mechanics (such as the increasing joint apparent stiffness, facilitating faster movements, and effects on the action stability), implication for movement optimization, and involvement of the different neurophysiological structures.
Hence, Coactivation is a phenomenon in which contraction of an agonist muscle leads to provide joint stability in the antagonist muscle.
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A 21-year-old male presents with inflammation of the testes. He has a high fever and edema and redness of the testes. Which organism is the most likely the cause of his symptoms?.
If he has a high fever and edema and redness of the testes. The most likely cause of his symptoms is mumps.
A vaccine can easily prevent mumps, a viral infection that affects the salivary glands. The parotid glands, or salivary glands below and in front of the ears, are affected by mumps. Infected saliva spreads the disease.
Mumps is the most prevalent infectious cause of orchitis, usually affecting men who have just turned men. The testicles would not swell as a result of herpes. Infection with Escherichia coli would not cause testicular swelling and redness. Testes are not affected by cytomegalovirus, a sexually transmitted disease.
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(Complete question)
A 21-year-old presents with inflammation of the testes and is diagnosed with orchitis. What is the most likely cause of his symptoms?
a. Herpes virus
b. Escherichia coli
c. Mumps
d. Cytomegalovirus
What is Taiga...?
Helpp :'v
Hello..!
¿What is Taiga?
It is one that has a vegetation typical of the continentally cold climate zone, and is composed of large forests and bushes.
¿What is Taiga?
The taiga or boreal forest is a biome characterized by its coniferous forest formations, being one of the largest forest masses on the planet.
Image Represented to observe the taiga.
In the somatic cell of a mammalian female, one of the two x chromosomes is randomly inactivated and condensed, resulting in the formation of a.
In the somatic cell of a mammalian female, one of the two x chromosomes is randomly inactivated and condensed, resulting in the formation of Barr body
What is Barr body ?Mammals that reproduce sexually are heterogamous (XY), whereas male mammals are homogamous (XY) (XX). Inferring that females have a "double dose" of X chromosome gene products would be logical. By inactivating one of the two X chromosomes at random in females, dosage compensation is achieved. The heterochromatized X chromosome, which is the body with a dark stain attached to the nuclear membrane, is absent in females and males.
After Canadian cytogeneticist Dr. Murray L. Barr originally saw and described the phenomenon in cats, the heterochromatin X chromosomes are commonly referred to as Barr Bodies.One of the two X chromosomes is randomly and irreversibly inactivated in cells other than egg cells very early in female embryonic development. This process is known as lyonization or X-inactivation.Learn more about Barr body here:
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White dwarf supernovae are good standard candles for distance measurements because?.
Due of their brightness, they may be used to calculate the separations between galaxies that are billions of light-years apart.
What qualifies a type La supernova as a reliable standard candle and a helpful tool for measuring distances?The visual magnitude of a type supernova, as witnessed from Earth, reveals its distance from Earth. Because of their constant peak luminosity, these explosions can be used as reference points to determine the distance to their host galaxies.
Why are supernovae useful as distance markers?Supernovae as distance indicators: positive and negative qualities. Very luminous, so it can be seen from a very long way away. With the most distant event occurring at z=3.9, astronomers have discovered supernovae much beyond z=1! Supernovae can therefore travel MUCH further into space than any other type of object.
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natural selection, a process that increases adaptive traits through time, has three conditions or principles. one is variation, another is differential reproductive success, and the third is:
Explain how two samples can produce identical dna fingerprints. Be sure to include the use of restriction enzymes and how they relate to dna nucleotide sequences in your explanation.
Two samples can produce identical dna fingerprints by cutting DNA samples by the same restriction enzymes and analyzing the resulting DNA fragments by DNA fingerprinting indicates which DNA samples have similar restriction sequences.
The restrict sequences alongside the DNA are inherited, thus, folks that are associated have comparable restrict sequences alongside their DNA. Cutting DNA samples via way of means of the equal restrict enzymes and studying the ensuing DNA fragments via way of means of DNA fingerprinting suggests which DNA samples have comparable restrict sequences.
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How does the rda for iron for adult premenopausal woman compare to the rda for adult men?.
Men typically consume 16 to 18 mg of iron per day, while women typically take in 12 mg.
How much iron is required for a 40-year-old woman?Women between the ages of 19 and 50 require 18 mg of iron daily. In order to make up for the quantity of iron lost through sweat, female athletes have higher demands. Women who are over 51 years old need 8 mg of iron daily.
Is an iron shortage a common perimenopause symptom?A lack of iron is prevalent, particularly in premenopausal women who lose blood during their periods. The National Heart, Lung, and Blood Institute estimates that 20% of women under 50 have an iron deficiency.
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If you want to protect the plants from insect damage, should you encouraged birds to forage on the plants, or put netting over the plants to keep birds out? explain your reasoning.
The insect converts about ten percent of the plant's energy into biomass.Only 10% of the insect's energy is subsequently converted by the bird into biomass. As you move up the food chain, this persists.
This explains why an ecosystem's energy model has a pyramidal structure. The biomass decreases as you move up the food chain.This is because energy is transferred very inefficiently across tropic levels, with 90% of the energy being wasted to the environment as heat energy.In the scientific discipline of biotechnology, organisms’ genetic makeup is altered. This raises the standard of living.Inserting a gene that causes plants to release compounds that fight insects into them is the best choice among the possibilities presented. This is due to the fact that it entails altering the genome of the plant organism in order to provide it resistance to insect invasion.
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describe how the surface area-to-volume ratio should be in order for cells to optimize the exchange of material through the plasma membrane.
The efficiency of material exchange through the plasma membrane increases with surface area to volume ratio.
Why is it called plasma membrane?Protoplasm, often known as plasm, is a tractor trailer living substance found inside every cell. The plasma membrane, a biological membrane, protects this living substance, also known as plasmic. In the ER, proteins that create membranes are put together. Lipid synthesis enzymes are present in this sensory organ, and as lipids are produced within the Era, they are incorporated into the organelle's inner membranes.
Where can you find plasma membrane?The term "cell" or "plasma membrane" refers to the outside layer that protects the cytoplasm and nucleus of live cells. The barrier has different permeability states. Cell walls are found on the outside of plant and bacterial cells. On the cell walls of animal cells, there is a cell membrane.
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Mitosis and Meiosis 1. Read the information about mitosis and meiosis, in each bids, write the number of chromosomes that would be found in the cell at that stage in the process
The number of chromosomes after each stage of mitosis and meiosis are:
Mitosis:a single parent cell's process of dividing into two new daughter cells. A full set of chromosomes from the parent cell are transferred to each daughter cell.
mitosis starts with 23 pairs of chromosome thus total 46 chromosomes are there once it completes mitosis there are same number of chromosomes that is 46
Meiosis:In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes.
Meiosis I begins with 46 chromosomes that is 23 pairs.
Half of the original 46 chromosomes, or 23 chromosomes, will be present in each daughter cell.
Each gamete cell has 23 chromosomes after meiosis II, when each parent cell is divided into two gametes.
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gel electrophoresis is a laboratory technique designed to separate molecules such as dna, rna, or proteins based upon what property?
Gel electrophoresis is a scientific procedure used to separate molecules like DNA, RNA, or proteins according to their size and charge.
What is gel electrophoresis, and how is it used in laboratories?By separating DNA, RNA, or protein molecules according to their size and electrical charge, electrophoresis is a laboratory method. The molecules are moved through a gel or other matrix by an electric current.
Which gel types are used to separate DNA, RNA, and proteins?Agarose and polyacrylamide gels are the two forms of gel that are most frequently employed. Different sizes and types of analytes work well with each type of gel.
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which of the following is classified as a macrocytic-normochromic anemia? a. iron deficiency b. pernicious c. hemolytic d. sideroblastic
Iron deficiency is classified as a macrocytic-normochromic anemia.
Macrocytic Normochromic anemia is a form of anemia, right?The blood disease known as macrocytic anemia is brought on when your bone marrow makes too many big red blood cells. These abnormal blood cells lack the nutrition necessary for red blood cells to function correctly. Despite not being a deadly disease, macrocytic anemia can have serious health effects if left untreated.
How do you define normocytic macrocytic anemia?A normal MCV range of 80 to 100 fL is indicative of normocytic anemia, which is anemia with low hemoglobin and hematocrit levels. Hemolytic and non-hemolytic subtypes of this anemia are distinguishable. Normocytic hemolytic can happen intravenously or extravascularly and have a variety of causes.
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brca1 and brca2 genes have been linked to a series of cancers. the gene product of brca1 and brca2 is involved in which of the following? choose one: a. base excision repair b. double-strand dna break repair c. nucleotide excision repair d. mismatch repair e. single-strand dna break repair
The gene product of brca1 and brca2 is involved in double-strand DNA break repair
What are BRCA1 and BRCA2 genes?
The breast cancer 1 (BRCA1) and breast cancer 2 (BRCA2) genes are the ones that are most frequently impacted in hereditary breast and ovarian cancer. Inherited mutations in the BRCA1 and BRCA2 genes account for roughly 3% of breast cancers (7,500 women annually) and 10% of ovarian cancers (2,000 women annually).
Although BRCA1 and BRCA2 are unrelated proteins, they are both routinely expressed in the cells of the breast and other tissues, where they aid in the repair of DNA damage or, if this is not possible, the destruction of cells. They play a crucial part in the error-free repair of DNA double strand breaks in addition to being engaged in the repair of chromosomal damage.
Breast cancer risk is increased if BRCA1 or BRCA2 is harmed by a BRCA mutation because defective DNA repair is prevented. The terms "breast cancer susceptibility genes" and "breast cancer susceptibility proteins" have been used to refer to BRCA1 and BRCA2. The dominant allele in these genes functions normally and tumor suppressively, but high penetrance mutations in these genes result in a loss of tumor suppressive activity that is associated with an elevated risk of breast cancer.
The BRCA1-associated genome surveillance complex is a sizable multi-subunit protein complex made up of BRCA1, additional tumour suppressors, DNA damage sensors, and signal transducers (BASC). The BRCA1 protein interacts with histone deacetylase complexes via the C-terminal domain and RNA polymerase II through its association with the latter. As a result, this protein functions in transcription as well as DNA repair for double-strand DNA breaks, ubiquitination, and transcriptional control.
Each individual possesses two copies of the BRCA1 and BRCA2 genes, with one copy coming from the mother and the other from the father. A person still has the normal copy of the BRCA1 or BRCA2 gene from the other parent even if they inherit a BRCA1 or BRCA2 mutation from one parent. Cancer develops when a second mutation, affecting the healthy copy of the gene, prevents a person from having functional BRCA1 or BRCA2 genes. Contrary to the hereditary BRCA1 or BRCA2 mutation, the second mutation would only be found in the cancer tissue and not elsewhere in the person's body.
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