During DNA replication, a short RNA primer is synthesized by the enzyme primase, which provides a starting point for DNA synthesis by DNA polymerase.
What is a Polymerase ?Polymerase fills in the gap by adding nucleotides to the 3' end of the adjacent DNA strand, using the complementary DNA strand as a template. This process is called primer removal or primer excision, and it is essential for the completion of DNA replication. After the primer is replaced with DNA, the nick in the sugar-phosphate backbone is sealed by DNA ligase.
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To______
means to allow another
road user to cross or use an intersection or
roadway before you do.
Answer: Yield
Explanation: Yielding is an important traffic rule that promotes safety and smooth flow of traffic. It is an important practice that helps maintain order on the roads and promotes safety for all road users. It's essential to be attentive, follow traffic signs and signals, and be aware of the right of way rules in your area to ensure a safe driving experience.
When you yield, you give the right of way to another driver or pedestrian. This means that you let them go first, even if it might inconvenience you or require you to slow down or stop.
Yielding is typically required in situations such as:
Yielding to pedestrians: When you approach a crosswalk or intersection where pedestrians are waiting to cross, you should yield to them and allow them to safely cross the road before you continue to drive. Drivers must yield to pedestrians within a crosswalk.
Yielding at intersections: When you approach an intersection where there are other vehicles, you should yield to those already in the intersection or approaching from the right. This helps prevent accidents and ensures a smooth flow of traffic.
Yielding when merging: When merging onto a highway or another lane, you should yield to the vehicles already in that lane. This allows for a safe and efficient merging process.
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what are the steps of creating a DNA profile
Answer:
The DNA testing process is comprised of four main steps, including extraction, quantitation, amplification, and capillary electrophoresis.
Explanation:
1. Separate white and red blood cells with a centrifuge.
2. Extract DNA nuclei from the white blood cells. ...
3. Cut DNA strand into fragments using a restriction enzyme.
4. Place fragments into one end of a bed of agarose gel with electrodes in it. 5. Use an electric current to sort the DNA segments by length.
Which region of myosin interacts with actin filaments? A. the head domain B. the rod domain C. the light chains D. the tail domain
Answer:
A. the head domain
Explanation:
The head domain of the myosin interacts with the actin filaments. It binds to an active site on the actin producing an inclination of the myosin head and the hydrolysis of ATP. As a consequence of these changes, the myosin has the necessary energy and is in the right position, ready to move along the actin filament producing the contraction of the muscle.
Does the equation below demonstrate the Law of Conservation of Mass?
Yes
No
Answer:
No sorry if im wrong
Explanation:
What was the Scientific Revolution of the mid-1500s and 1600s? What is the scientific method? List the major steps of the scientific method. What are the lasting consequences of the scientific revolution?
Answer:
Question: What was the Scientific Revolution of the mid-1500s and 1600s?
Answer: Before the mid-1500s and 1600s, Scientists feed on ancient scholars scientific materials and what the church explains through the Bible of how God created the universe and the people that lived in the world. The interest people have to observe their natural environments, coupled with the rise of more educated scientists led to the Scientific Revolution which uses observation of the natural world, experimentation, and a well-followed scientific method to discover the world.
Question: What is the scientific method?
Answer: During the mid-1500s and 1600s scientists developed a method called the scientific method with the aim to lay emphasis on observing the natural world and experimentation to test hypothesis. Making them start thinking like scientists instead of accepting unproven theories.
Question: List the major steps of the scientific method.
Answer:
1. Observation
2. Experimentation
3. Logical Ideas
4. Hypothesis
Question: What are the lasting consequences of the scientific revolution?
Answer:
1. It shaped the way people think and make people question and observe their environments.
2. It embraces the acceptance of proven and tested theories rather than some mystical beliefs.
Each enzyme catalyzes one particular chemical reaction. which term describes this property of enzymes?
This property of enzymes is known as enzyme-substrate specificity.
Enzyme- Proteins called enzymes serve as biological catalysts by quickening chemical reactions. The molecules upon which enzymes may function are termed substrates, and the enzyme changes the substrates into new molecules known as products.
Enzyme-Substrate Specificity- Specificity is a property of the enzyme, indicating what type of linkage the enzyme acts on. Completely specific enzymes would act only on a particular chemical structure, rather than several kinds of similar molecules.
Chemical Reaction- When molecules undergo a chemical reaction, the bonds among atoms in the reactants are broken and newly formed bonds form a new product is called the Chemical Reaction.
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imagine that the middle head of the deltoid were the only muscle supporting the outstretched arm below. the muscle must support the weight of the arm plus a five pound weight. if we measured the force generated by the muscle is would be
If we measured the force generated by the muscle it would be more than 5 pounds.
Deltoid muscles play an important part in helping you move your arm in different directions. They also stabilize your shoulder joint and cover it from injuries analogous to dislocations. People who perform a lot of repeated above movements, analogous as insensibility, jugs, or mechanics, are at the trouble of injuring their deltoid muscles. utmost deltoid muscle injuries heal with nonsurgical treatments. The muscle supports the weight of the arm plus a five-pound weight.
It's present in your shoulder, which is the ball-and-socket joint that connects your arm to the box of your body. Like utmost other muscles in your body, the deltoids are cadaverous muscles. Tendons attach them to bones. Cadaverous muscles are voluntary muscles, meaning you choose to move them.
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Background Information:
You have been married for quite some time and are interested in growing your family. Thalassemia is a disease that runs in one side of the family. You would like to know more about genetic testing and whether or not you should go through with it.
You are curious about how diseases are passed down from one generation to the next and what the likelihood of passing down this disease is, if you’re a carrier. You and your spouse have discussed whether decisions about reproducing should be based on predispositions to a disease. You’ve come to a genetic counsellor to walk you through this emotionally challenging time
How do I demonstrate???
The inheritance pattern of thalassemia disease can be established by observing the genotype of an individual and/or estimating frequency by a pedigree.
What is thalassemia?Thalassemia is a blood disorder/disease that is inherited as a recessive condition, which means that both alleles must be present to show the disease state.
In a monogenic disease, the expression of dominant alleles can mask the presence of dominant alleles in carrier individuals, but they are evidenced by a pedigree tree.
In conclusion, the inheritance pattern of thalassemia disease can be established by observing the genotype of an individual and/or estimating frequency by a pedigree.
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Multiple sclerosis (MS) involves an immune-mediated process in which an abnormal response of the body’s immune system is directed against the central nervous system (CNS) (i.e. the brain, spinal cord, and optic nerve). A hallmark of MS are lesions within CNS tissues that increase with volume over the lifetime of the patient or model animal. Mesenchymal stem cells (MSCs) have the ability to produce immunomodulatory factors that can alter the immune response in multiple tissues and are currently being investigated for their therapeutic efficacy in treating MS. In a mouse model of MS, a single MSC treatment can reduce the volume of MS lesions by 50% over the course of several months. Based on this study, researchers believe similar treatments can work in human patients.
You have been contracted to design a clincal trial for an MSC treatment of MS in partnership with the Mayo Clinic. Mayo has 2,558 patients under their care diagnosed with "mid stage MS" being treated with the current standard of care. The basis of diagnosing MS in these patients and monitoring disease progression is by imaging CNS lesions with MRI. Mid stage MS is defined as having a total lesion volume from 25-100 mm3 in the brain. In the proposed trial, patients will be given a single MSC infusion of 10M cells. Over the course of a year doctors will monitor lesion volume.
H0: σ1=σ2
colab coding
a) Generate a histogram marking the mean and the limits of α out to a 95% probability. Include labeled axes and a figure legend denoting mu, sigma and n.
b) How would you describe these data? Generate a box plot showing the mean and the median. Include both values in the plot legend.
c) As a compromise, the board has asked you to reduce outliers by only considering the inner 90% of all patients for the trial. What would the range of minimum and maximum lesion volumes be using only these patients?
d) Plot distribution of the MEAN with lines showing the STANDARD ERROR and include the standard error value in a figure legend.
f) Consider the means of the original data and your new measurements. Does the mean of the original data fall within the 90% confidence interval of your new dataset? Show a PDF of the new mean distribution, the 90% confidence intervals and the original mean.
Multiple sclerosis (MS) is a condition that occurs when the immune system attacks the central nervous system (CNS), including the spinal cord, brain, and optic nerve. This leads to lesions in CNS tissues that increase in size over the course of the patient's life.
Mesenchymal stem cells (MSCs) are being investigated for their potential use in treating MS due to their ability to produce immunomodulatory factors that can change the immune response in various tissues. A clinical trial is being planned to test an MSC treatment for MS.
Examine the means of the original data and your new measurements. Is the mean of the original data inside the 90 percent confidence interval of your new dataset. Show a PDF of the new mean distribution, the 90 percent confidence intervals, and the original mean.
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Explain how visible inherited traits are diffrent amongst offspring of the same parent.
Answer:
Although an individual gene may code for a specific physical trait, that gene can exist in different forms, or alleles. ... In other cases, each parent provides a different allele of a given gene, and the offspring is referred to as heterozygous ("hetero" meaning "different") for that allele.
Which of the following are mutations* that would allow a phage to grow on a host of E. coli containing the EcoR1 restriction enzyme *if it occured in a phage that was prevented from growing on an E. coli host through because of EcoR1 cleavage Question 6 options: 3' CTTAAG 5' -> 5' GAATTC 3' 3' CCCGGG 5' -> 3' CCCTGG 5' 3' CTTAAG 5' -> 5' GAACTC 3' 3' CTTAAG 5' -> 3' CTAAAG 5'
The mutation that would allow a phage to grow on an E. coli host containing the EcoR1 restriction enzyme would be the second option: 3' CCCGGG 5' -> 3' CCCTGG 5'.
This mutation changes a single nucleotide and would alter the amino acid sequence of the phage's enzyme, allowing it to cleave the EcoR1 restriction site. This would prevent the host cell from cleaving the phage's DNA and allow for successful infection and replication.
Mutations play a crucial role in evolution and adaptation, allowing organisms to develop new traits and survive in changing environments. Enzymes are essential for many biological processes, including DNA replication, transcription, and translation.
They catalyze chemical reactions and allow for the efficient processing of biological molecules.
Option 3: 3' CTTAAG 5' -> 5' GAACTC 3'
Which of the following are mutations* that would allow a phage to grow on a host of E. coli containing the EcoR1 restriction enzyme *if it occured in a phage that was prevented from growing on an E. coli host through because of EcoR1 cleavage Question 6 options: 3' CTTAAG 5' -> 5' GAATTC 3' 3' CCCGGG 5' -> 3' CCCTGG 5' 3' CTTAAG 5' -> 5' GAACTC 3' 3' CTTAAG 5' -> 3' CTAAAG 5'
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Question 2:Which definition best describes gene flow?
A. A random change in allele frequency
B. Movement of alleles between populations
C. The best adapted are able to survive and reproduce
D. A random change in nucleotide
Answer:
B. Movement of alleles between populations
Explanation:
What are ways that a young plant differs from a parent plant
Answer:
their size
Explanation:
The most distinct difference between a baby plant and an adult plant is their size. They look very similar but baby plants are much smaller, like a miniature version.
Data Table 4: Diffusion Rates
5 minutes in vinegar:
Length of side:
10 mm (1cm)
20 mm (2cm)
30 mm (3cm)
The chart asks for “Distance Vinegar Diffused” and “Diffusion Rate (mm/minute)”
If you have this same assignment, please help. I’m in K-12.
Answer:
need to know what u r asking
Explanation:
Which of the following describes a density-independent factor?
a parasite that infests pig intestines
a hurricane that wipes out the bird population on an island
a lion hunting and killing zebra
a factor that depends upon population size
A density-independent factor is a factor that affects a population regardless of its size.
Therefore, the correct answer is a hurricane that wipes out the bird population on an island.
Hurricanes are natural disasters that can wipe out entire populations, regardless of their size or density. Parasites, predators, and other factors that depend upon population size are considered density-dependent factors because they are influenced by the size of the population they are affecting.
In contrast, density-independent factors are usually environmental factors, such as weather events, that have an impact on a population regardless of its size.
It is important for ecologists to understand the difference between these two types of factors in order to accurately predict and manage populations of different species.
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The genotype of a fetus can be screened for SNPs associated with some diseases.
The given statement genotype of a fetus can be screened for SNPs associated with some diseases is true.
This enables the SNP to be used as a genetic marker in what way?SNPs can be utilized as markers for putative disease genes because of the co-inheritance of SNPs with genes of interest (i.e., disease genes). An SNP can be used to identify an illness if it occurs in more than 1% of people.
Why are SNPs significant and what do they entail?They make it possible for researchers to quantify individual genetic variations. SNPs are specific base pairs in a chromosome's DNA that differ at the same locus in a different chromosome or person.
A genotype's simple definition is what?The term "genotype" broadly refers to an organism's genetic makeup; in other words, it characterizes an organism's whole gene pool. The phrase can also be used to describe the alleles, or different forms of a gene, that an organism carries in a more specific meaning.
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Which of the following describes an impact of floods on ecosystems?
Answer:
Soil erosion.
Explanation:
Soil erosion is the impact of floods on ecosystems because the floods moves very fast which takes soil with itself. Due to soil erosion, the productive layer of the soil or the layer in which nutrients are present are eroded which has a negative impact on the plants due to unavailability of nutrients. The floods moves very fast and the soil has no the ability to hold its particle tightly which leads to erosion of the soil that negatively affected the ecosystem.
Which animal would most likely move fastest in the water?
(1) Sailfish
(2) Seahorse
(3) Blowfish
(4) Octopus
Answer:
Sailfish
Hope it is helpful
All of the following are reasons why is copper (Cu) so widely sought
after EXCEPT: *
A. Used for/in a lot of things
B. Highly conductive
C. Has the ability to turn into gold
D. Antibacterial properties
Which describes the notation TT for the trait of a plant height?a. homozygous genotypeb. heterozygous genotypec. homozygous phenotyped. heterozygous phenotype
The notation TT for the trait of a plant height, the correct option is (b) homozygous genotype.
The parts of an organism's genome that make up its genotype. The set of alleles or genetic variations that a person possesses inside a certain gene or genetic area is also referred to as their genotype.
Tallness (T) is more prevalent than shortness (S) in pea plants (t). In the case of a cross between a homozygous short plant and a heterozygous tall plant. White flowers are subordinate to purple blossoms. Purple flowers that are heterozygous for both colours are crossed.
Both parents have the Tt genotype. As a result, both parents will produce T and t gametes. Three different genotypes TT, Tt, and tt in the ratio 1:2:1 could be present in the offspring resulting from this cross. That tallness is the dominant characteristic, the phenotype of offspring with genotypes TT and Tt will be tall.
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Blood passes from the vessels into the sinuses in which system?-Bilateral Symmetry-Open circulatory system-Closed circulatory system-Cephalization
The blood passes from the vessels into the sinuses in the open circulatory system.
What would happen if that first codon was not part of the sequence ?
Answer:
What would happen if a genetic mutation in a gene changed a start codon to some other codon? The messenger RNA transcribed from the mutant gene would be nonfunctional because ribosomes could not initiate translation correctly. ... An incoming tRNA molecule with the right amino acid moves into the A site on the ribosome.
Explanation:
both the tricuspid and mitral valves have string like structures that ancore them and prevent them from inverting. what is the name of these heart strings?
The string-like structures that anchor the tricuspid and mitral valves and prevent them from inverting are called chordae tendineae or chordae.
These fibrous cords connect the free edges of the valve leaflets to the papillary muscles, which are small muscles located within the heart's ventricles. When the ventricles contract, the papillary muscles also contract, pulling on the chordae and keeping the valve leaflets in their proper position, thereby preventing the backflow of blood.
The chordae tendinae( CT) are strong, stringy connections between the stopcock circulars and the papillary muscles. These are attached to the circulars on to the ventricular side and help the cusps from swinging back into the atrial depression during systole.
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HELP DUE IN 10 MINS!
What type of mutation is shown?
inversion
translocation
deletion
duplication
This is an inversion.
The section of chromosome has been reversed end to end.
Answer:
I think its B. translocation
Describe the wall of lymphatic capillaries.
a. Thin-walled, with tightly joined squamous cells
b. Thin-walled, with tightly joined cuboidal cells
c. Thick-walled, with overlapping squamous cells
d. Thick-walled, with tightly joined squamous cells
e. Thin-walled, with overlapping squamous cells
Answer:
Lymphatic capillaries have thin walls, only as thin as a single cell. The cells overlap each other so that interstitial fluid easily enters the capillaries. Lymphatic capillaries are closed at one end. They contain a mini-valve that lets interstitial fluid flow into but not out of them.
Experts caution women with breast cancer or a history of this disease to limit their _____ intake because it could stimulate cancer cells by closely imitating the actions of estrogen.
Experts caution women with breast cancer or a history of this disease to limit their Soy food intake because it could stimulate cancer cells by closely imitating the actions of estrogen.
The breast cancer cells are taken out in a biopsy/surgery and gets tested to find if they have ample proteins which are estrogen or progesterone receptors.
The estrogen helps in stimulating hormone receptor-positive breast cancers to grow.
It is so because women get impacted by the diagnosis and treatment of early breast cancer. Whereas, personal fitness/diet reduces the risk of chronic disease, colon and breast cancers, diabetes, high blood pressure.
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What is the main observation scientists made prior to their experiment with turbinmicin
The main observation made by the scientists before their experiment with turbinomycin was the presence of a specific microorganism or biological particle and its activities.
What type of microorganism was observed?Fungi.Bacteria.Cancer cells.Healthy cells.Turbinmicin is a molecule that has antifouling activities and for this reason, it stimulated the curiosity of scientists who wanted to know more about this molecule and its performance in living organisms in the fight against diseases and other ailments.
However, before promoting studies on turbinmicin, it was necessary to carry out preliminary studies on microbiology, molecular biology, toxicity, among others.
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donker m, straver me, wesseling j, loo ce, schot m, drukker ca, et al. marking axillary lymph nodes with radioactive io- dine seeds fo
The purpose of marking axillary lymph nodes with radioactive iodine seeds is to aid in their localization and identification during surgical procedures, particularly in the context of breast cancer.
During breast cancer surgery, it is important to identify and remove the affected axillary lymph nodes for accurate staging and proper treatment planning. To facilitate this process, radioactive iodine seeds can be implanted in the axillary lymph nodes prior to surgery.
The radioactive iodine seeds emit radiation that can be detected using specialized equipment, such as a gamma probe, during the surgical procedure. This allows the surgeon to precisely locate and remove the marked lymph nodes, ensuring that all potentially cancerous nodes are appropriately excised.
By marking the axillary lymph nodes with radioactive iodine seeds, the procedure becomes more efficient and targeted. It helps reduce the risk of unnecessary lymph node removal while maximizing the likelihood of detecting and treating cancerous nodes.
Overall, marking axillary lymph nodes with radioactive iodine seeds improves the accuracy and success of axillary lymph node dissection in breast cancer surgery.
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The complete question is:
What is the purpose of marking axillary lymph nodes with radioactive iodine seeds?
The foxp2 gene is thought to be involved in language in humans. At prophase i, how many copies of the foxp2 gene are present in a cell? keep in mind that humans are diploid.
Four copies, one on each sister chromatid in a pair of homologous of the foxp2 gene are present in a cell.
What is the FOXP2 gene in charge of?Forkhead box P2 is a protein that can be produced using instructions from the FOXP2 gene. As a transcription factor, this protein regulates the activity of other genes. Through what is referred to as a "forkhead domain," it binds (attaches) to the DNA of these genes.
As two functional copies are necessary for the normal development of speech and language in humans, FOXP2 is the first gene to have been linked to language problems and fine orofacial motor control.
Meiosis is a sort of reductional cell division in which a cell replicates its DNA before dividing twice to create four daughter cells, each of which carries half of the original DNA.
Meiosis I and Meiosis II are the two cell divisions that occur during meiosis.
A diploid (2n) cell's genetic material is duplicated prior to Prophase I (Meiosis I), therefore at this point in cell division, the parental cell has four chromatids in a pair of homologous chromosomes.
One gene locus where the FoxP2 gene can be mapped is present in each sister chromatid.
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Which of the following is an example of a nonspecific immune response?