The Russian exploration is different from that of the Chinese, Portuguese, and Dutch because they did not extend political control over the territories they explored.
What is the difference between the Russian exploration and other exploration such as the Chinese?
The Russian exploration can be seen to be different from that of other exploration such as the Chinese, Portuguese, and Dutch because in some of their exploration we can see that they do not actually take the total political control on the place they were exploring compare to Dutch.
Fore instance in the 11th century, Russians , it can be seen in how they occasionally penetrated into Siberia and do explore them, unlike the Chinese that will always want the full control, the Russian that penetrated this, usually do this occasionally, however their exploration can as well be seen in Kara Sea as well as the West Siberian.
Therefore, option C is the correct option.
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What is one reason we have stripes of alternating magnetism on the ocean floor?
Answer:
According to the internet: "The patterns reflect the creation and spreading of oceanic crust along the mid-oceanic ridges. Basalt forming at the ridge crest picks up the existing magnetic polarity. Divergence then moves the swath of fresh crust away from the ridge. As long as the magnetic field remains constant, the polarity “stripe” widens."
Explanation:
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What type of gene mutation is cystic fibrosis deletion?.
Mutations in the CF transmembrane conductance regulator (CFTR) gene cause CF. On 70% of CF chromosomes, a three-nucleotide deletion (delta F 508) causing the loss of a phenylalanine residue in the tenth exon of the CFTR gene has been found.
What is the best way to explain cystic fibrosis?
Cystic fibrosis (CF) is a genetic disease that causes a protein in the body to malfunction. Cystic fibrosis patients have a faulty protein that affects the body's cells, tissues, and glands that produce mucus and sweat.
What organ is responsible for cystic fibrosis?
Cystic fibrosis (CF) is a genetic disease that runs in families. It is caused by a faulty gene that causes the body to produce abnormally thick and sticky mucus. This mucus accumulates in the lungs' and pancreas' breathing passages.
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If a hair i located and ha a diameter of 110 micron and the medulla ha a diameter of 27 micron what i the medullary index
If a hair is located and ha a diameter of 110 micron and the medulla ha a diameter of 27 micron what is the medullary index is 0.490.
Recall that the medullary index of hair is calculated via way of means of locating the ratio of the medulla's diameter to the whole hair's diameter:
Medullary Index = whole hair's width / whole hair’s width medulla’s width.From our records, the width of the hair is a 110 microns and the width of the medulla is 27 microns.We then plug in our records into the medullary index components and decrease to lowest terms:= 27 / 110= 13.5 / 55 =0.490 We then divide to get the medullary index: approx 0.490.Recall that the medullary index for human beings is third or much less at the same time as the medullary index for animals is 0.50 or greater.Read more about hair:
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why is it essential to sequence many clones from multiple cdna libraries from different tissue types to annotate a genome?
It is essential to sequence many clones from multiple cDNA libraries from different tissue types to annotate a genome because different genes are transcribed in different tissues and some genes are rarely transcribed in any tissue.
A cDNA library is a group of cloned DNA sequences which are complementary to the mRNA that turned into extracted from an organism or tissue.
cDNA libraries are useful for isolating genes that encode specific mRNAs. cDNA libraries are powerful and useful tools in the field of biotechnology. It aids in the expression of eukaryotic genes in prokaryotes and assists in prokaryotic transcription processes. used to isolate DNA sequences that encode mRNA.
A genome is the entire set of DNA instructions found within a cell. The human genome consists of 23 pairs of chromosomes located in the cell's nucleus and her one small chromosome located in the cell's mitochondria. The genome contains all the information an individual needs to develop and function.
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an ecologist recorded 12 white-tailed deer, odocoileus virginianus, per square kilometer in one woodlot and 20 per square kilometer in another woodlot. what was the ecologist comparing?
The ecologist was comparing the ecological density.
What is ecological density?
It is defined as the population or biomass per unit of habitat area. The population actually settles in the volume or area that is available.
What is biomass?
It is defined as the population or biomass per unit of habitat area. The population actually settles in the volume or area that is available.
What is the population?
Population refers to the number of individual species living in a specific area.
What is species?
It refers to a group of closely related organisms that can mate and transfer the genetic information.
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Can cold-blooded animals control their body temperature?.
Animals with cold blood cannot produce body heat, but they can control it by altering their surroundings.
Reptiles like alligators frequently sleep in the sun and warm up. On the other side, they cool off by swimming, hiding behind a rock for protection, or burrowing into the earth.
They are unable to endure high temperatures. Reptiles, fish, and other cold-blooded creatures are examples. Animals with warm blood are those that can control and maintain a consistent body temperature.
There is no distinction between warm-blooded & cold-blooded creatures in terms of pain or suffering.
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Which part of the microscope allows you to adjust the placement of the slide over the light source?.
IRIS DIAPHRAGM CONTROL this part of the microscope allows you to adjust the placement of the slide over the light source.
How is the light on a microscope adjusted?Result for an image Which area of the microscope enables you to change how the slide is positioned in relation to the light source?
On the side of the compound microscope body is where the rheostat control for the microscope is located. Usually, it will be a knob that may be moved clockwise to intensify the light or counterclockwise to dim it.
The condenser, which is positioned beneath the stage, focuses the light to produce strong, even illumination in the area surrounding the object being seen. Critical illumination is the process of focusing the light source's image via the condenser directly onto the plane of the specimen.
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In the experiment by jacob, monod, and pardee, it was demonstrated that bacteria with a mutant lacl gene that were transformed with a plasmid encoding a functional lacl gene and lac operon were restored to normal repression of the lac operon in the absence of lactose. If their data showed that merozygote strains not receiving lactose still produced β-galactosidase, what might their conclusions have been?.
The conclusion that has been shown are:
b. The lacl gene is a trans-acting repressor.
c. The lacl gene exhibits a trans effect.
e. The lacl allele is a trans-acting inducer.
What is the mutant gene?A genetic mutation is a change in the DNA sequence of a gene that results in something different. It causes a permanent alteration in the DNA sequence of that gene.
Human evolution, or the process of change across generations, requires genetic variances. A random genetic mutation arises in a single individual.
Therefore, the correct options are B, C, and E.
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The question is incomplete. Your most probably complete question is given below:
The lacl gene is a cis-acting element.
The lacl gene is a trans-acting repressor
The lacl gene exhibits a trans effect.
The lacl allele (wild type) is dominant to the lac (mutant) allele.
The lacl allele is a trans-acting inducer
Do the mean rr intervals differ between quiet and deep breathing? how do the sds differ? explain these observations.
The mean RR intervals differ between quiet and deep breathing because the intervals differ, with deep breathing having a better interval.
What are RR intervals?The duration spent between two consecutive R waves of the QRS signal on the ECG (and its reciprocal, the HR) is a function of inherent sinus node features as well as autonomic factors.
Quiet breathing, also known as external breathing, is a type of breathing that occurs at rest and does not require the individual's psychological component of thought.
Deep breathing has a better interval because the time in between breathing when doing deep breathing is longer because you're taking in a lot of air.
Therefore, the duration spent between two consecutive R waves of the QRS signal on the ECG (and its reciprocal, the HR) is a function of inherent sinus node features as well as autonomic factors.
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The question is incomplete. Your most probably complete question is given below:
Observations are given:
There is a difference in the intervals, with the deep breathing having a higher interval because the time in between breathing when doing deep breathing will be longer as you are taking more air in.
What can genetic engineering be used for?.
For instance, transferring a gene from one species to an organism from a different species via genetic engineering may result in the desired characteristic. Genetic engineering has been used in both science and business to produce cancer treatments, brewing yeasts, genetically modified plants and animals, among other things.
The phrase "genetic engineering" is typically used to describe recombinant DNA technology techniques that were developed as a result of fundamental studies in microbial genetics.
Human insulin, human growth hormone, and the hepatitis B vaccination are examples of goods produced using genetic engineering techniques. Other genetically engineered species including disease-resistant plants have also been created using these techniques.
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microRNA (miRNA) and small interfering RNA (siRNA) use a similar process and proteins to regulate gene expression. Which of the following is more commonly associated with the miRNA pathway?A. The protein Drosha is found in the miRNA pathway but not the siRNA pathway.
B. The protein AGO is found in the miRNA pathway but not the siRNA pathway.
C. The protein complex RISC is found in the miRNA pathway but not the siRNA pathway.
D. In animals, the miRNA pathway usually leads to mRNA degradation, and in the siRNA pathway, the mRNA is not degraded.
E. The protein Dicer is found in the miRNA pathway but not the siRNA pathway.
The protein Drosha is found in the miRNA pathway but not the siRNA pathway.
What is miRNA pathway?Together, the available data suggest that miRNAs and siRNAs work with a group of effector proteins to regulate gene expression by impairing translation and hastening mRNA decay, and that each of these regulatory processes is subject to a variety of different mechanisms.
While siRNAs and miRNAs are both short duplex RNA molecules that target messenger RNA (mRNA) to silence genes at the post-transcriptional level, they differ in their modes of action and clinical uses.
MicroRNAs (miRNAs) are small, non-coding RNAs that are endogenously encoded and can prevent the translation of mRNAs with partially complementary target sequences. They are produced by processing short RNA hairpins.
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drag the labels to the correct locations on the flowchart to identify the steps of inhalation and exhalation.
The lungs expand as a result of the diaphragm and rib muscles contracting during inhalation. Air enters the nose or mouth, travels through the trachea and bronchi, and then exits into the alveoli.
The lungs' volume decreases as a result of the diaphragm and rib muscles relaxing during exhalation. Air leaves the alveoli and travels up the bronchi, trachea, and bronchi before leaving through the mouth or nose.
Which of the following statements most accurately sums up ventilation?Gas exchange is the process of bringing oxygen from the outside world into the body and releasing carbon dioxide from the body back into the outside world.
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What is the yield of ATP when each of the following substrates is completely oxidized to CO2 by a mammalian cell homogenate? Assume that glycolysis, the citric acid cycle, and oxidative phosphorylation are fully active.
(a) Pyruvate
(b) Lactate
(c) Fructose 1,6-bisphosphate
(d) Phosphoenolpyruvate
(e) Galactose
(f) Dihydroxyacetone phosphate
(a) 12.5; (b) 14; (c) 32; (d) 13.5; (e) 30 (f) 16
(a) Pyruvate (a) 12.5
(b) Lactate (b) 14
(c) Fructose 1,6-bisphosphate (c) 32
(d) Phosphoenolpyruvate (d) 13.5
(e) Galactose (e) 30
(f) Dihydroxyacetone phosphate (f) 16
(a)Pyruvate : Abstract. Pyruvate, a byproduct of glycolysis, is essential for cell metabolism. It is synthesized in the cytosol and oxidized in the mitochondria, where it fuels the citric acid cycle and increases oxidative phosphorylation.
(b) Lactate : This test determines the concentration of lactic acid, also known as lactate, in your blood. Lactic acid is a substance produced by muscle tissue and red blood cells, which transport oxygen from the lungs to the rest of the body. Lactic acid levels in the blood are normally low.
(c) Fructose 1,6-bisphosphate :Fructose 1,6-bisphosphate, also known as Harden-Young ester, is a phosphorylated fructose sugar on carbons 1 and 6. This compound is found in cells in the -D form. The majority of glucose and fructose enter the cell and are converted to fructose 1,6-bisphosphate.
(d) Phosphoenolpyruvate's : In glycolysis, phosphoenolpyruvate serves as the second source of ATP. The phosphate group transfer from PEP to ADP, catalyzed by pyruvate kinase, is also highly exergonic and thus virtually irreversible under these conditions.
(e) Galactose: Galactose (, galacto- + -ose, "milk sugar"), also known as Gal, is a monosaccharide sugar that is approximately as sweet as glucose and approximately 65% as sweet as sucrose. It is an aldohexose and a glucose C-4 epimer. Lactose is formed when a galactose molecule is linked to a glucose molecule.
(f) Dihydroxyacetone phosphate: Dihydroxyacetone phosphate is a key intermediate in the biosynthesis of lipids and glycolysis. Dihydroxyacetone phosphate has been studied for the treatment of large-cell lymphoma and diffuse lymphoma.
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A cientit i an examining a role of an element found in fat and carbohydrate of living thing. Thi element make up 65% of human body ma which tatement decribe the element he i tudying
A client is investigating the function of oxygen, an element that makes up 65% of the human body and is found in fat and carbohydrates.
What is the role of oxygen in human body?Due to its importance in sustaining life on Earth, oxygen is the most vital element for all living things. According to some estimates, oxygen is required for 90% of our biochemical and metabolic processes. We breathe in oxygen and exhale carbon dioxide as we breathe. Hemoglobin transports oxygen from the lungs to all of the body's cells. The nose has mechanisms that clean and filter the air before it reaches your lungs, hence it is also strongly advised that you breathe through your nose. For a life full of vigor, an adequate supply of oxygen is necessary. One can utilize oxygen cylinders to increase the level of oxygen in the event that it falls.For more information on role of oxygen kindly visit to
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population abundance and density are related to geographic range and adult body size. why and what are the conservation applications?
According to the given statement Geographic range increases as abundance increases.
Why is population density significant?Large populations of a species spanning numerous locations will be more likely to keep their broad distributions as well as high abundance. Additional children are produced by larger populations, increasing the likelihood that the species will colonize more areas and broaden its range.
What factors affect population density?Immigration, emigration, as well as genetic exchange, are examples of processes affecting metapopulations that have an impact on abundance. Because it takes into account so many crucial aspects of a species, including individual features, population controls, as well as metapopulation dynamics, the study dynamics abundance is fascinating.
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2019 3b. The pyruvate dehydrogenase complex (PDC) catalyzes the conversion of pyruvate to acetyl-CoA, a substrate for the Krebs (citric acid) cycle. The rate of pyruvate conversion is greatly reduced in individuals with PDC deficiency, a rare disorder. Make a claim about how PDC deficiency affects the amount of NADH produced by glycolysis AND the amount of NADH produced by the Krebs (citric acid) cycle in a cell. Provide reasoning to support your claims based on the position of the PDC-catalyzed reaction in the sequence of the cellular respiration pathway.
When a PDC-catalyzed reaction is present in the cellular respiration pathway's sequential order, the likelihood of inheritance is zero.
What transpires during the process of acetyl-CoA being converted to pyruvate by pyruvate dehydrogenase?The pyruvate dehydrogenase reaction is the process that transforms pyruvate into acetyl-CoA. The complex of pyruvate dehydrogenases catalyzes it (PDH). While releasing a CO2 molecule, this procedure generates one NADH electron carrier.
What happens to pyruvate as a result of the pyruvate dehydrogenase complex?The oxidative decarboxylation of pyruvate, which results in the synthesis of acetyl-CoA, CO2, and NADH (H+), is catalyzed by the pyruvate dehydrogenase complex (PDC)3 (1,–3). By connecting the tricarboxylic acid cycle's oxidative pathway to the glycolytic pathway, the PDC plays a crucial role in the oxidation of glucose.
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Why must predators in ecosystems with low npp cover huge ranges to survive (e. G. Sharks in oceans, desert birds)?.
Net primary production (NPP) is the amount of biomass or carbon produced by primary producers per unit area and time.
How did this occur ?
NPP is the actual available energy that's produced by primary producers for other organisms to obtain energy from. When a predator lives in a ecosystem that has a low NPP, it means that the predator will have to cover a much wider range in order to have all the needed energy that's produced by those primary producers. If the there was a high NPP the need to search for those primary producers was much diminished as there would be enough energy available close by.To know more about NPP from the given link
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Do Individuals that are well adapted to their environment survive and produce more or fewer offspring?.
Better adapted individuals typically live longer and have more kids, whereas less well adapted individuals either pass away or have fewer offspring.
How well a person survives and reproduces in its surroundings?The ability of organisms to survive and reproduce—with a focus on "reproduce"—is a measure of their fitness. Fitness is officially defined as the average number of children that organisms with a certain genotype or phenotype produce relative to other members of the community.
Why do people who are more acclimated to their surroundings have more children?According to the theory of natural selection, features that may be passed down enable animals to adapt to their environment more effectively than other members of their own species. Compared to other methods, this promotes improved survival and reproduction.
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How do you use frameshift mutation in a sentence?.
Frameshift mutations inside the CFTR genes reason cystic fibrosis (one includes the insertion of two nucleotides, and the opposite entails the deletion of 1 nucleotide).
A frameshift mutation in a gene refers back to the insertion or deletion of nucleotide bases in numbers that aren't multiples of three. that is essential because a mobile reads a gene's code in agencies of three bases while creating a protein.
A frameshift mutation is produced both by insertion or deletion of 1 or greater new bases. due to the fact the analyzing frame starts on the start website, any mRNA constructed from a mutated DNA sequence may be studied out of the body after the factor of the insertion or deletion, yielding a nonsense protein.
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What is the proper way for transporting food?.
Insulated containers may keep the food cold if the trip is brief. You might need to use ice bricks to keep food cold and heat packs to keep food hot if the trip is longer. In an insulated container with a cover, only place pre-heated or pre-cooled food to help maintain safe temperatures.
Excellent methods for delivering meals to others include utilizing foil pans, recycling plastic salad and fruit containers, and wrapping items in foil or plastic wrap.
Food manufacture and distribution depend on the transportation of food. By getting food from farmers to consumers, it keeps the food processing industry in business. However, there is still a chance of contamination throughout this procedure. It's crucial to understand the safest methods for transporting food because of a chance of contamination.
Transporting food is the process of getting it from the producer to the final destinations. In the food processing industry, this procedure is crucial for preserving food safety.
Various forms of transportation are used to convey food. Road, sea, air, and train are a few of them. Trucking, however, is the most popular technique and accounts for the bulk (70.5%) of food transportation in the US.
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pooled image-base screening of mitochondria with microraft isolation distinguishes pathogenic mitofusin 2 mutations | communications biology (nature)
Screening of mitochondria which is pooled image-based with micrograft isolation distinguishes pathogenic mitofusion to mutations.
What is pooled screening?More complicated strategies were needed for pooled screening platforms that include complex traits only visible under a microscope. There are a few methods for maintaining information about the cell's physical location, which is necessary for mapping phenotypic to disruption. Using customized non-commercial sequencing rigs, some platforms use in situ sequencing (ISS) to produce sequencing findings that include positional data of a particular cell. Other technologies use targeted cells to photoactivate endogenous fluorophores, which are then subjected to FACS-seq.What is Mitochondria?Mitochondria is termed as the power house of the cell as it provides the energy and power to the overall cell.
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which explanation is the reason that the bacterium escherichia coli would be the probable causative agent in a client with cystitis?
Binomial fusion would be the probable causative agent in a client with cystitis
Binary fission is an asexual method of reproduction used by prokaryotes, such as bacteria, to divide.
The E. coli begins to divide when the parent cell elongates, which is reproduced by the creation of the septum, producing genetically identical daughter cells. The cellular component is evenly divided into the daughter cell after the septum is formed, and the genome is transferred to each side of the cell.
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1. describe the negative feedback loop that controls the rate of erythropoiesis. under what circumstances would you expect the rate of erythropoiesis to be increased?
Erythropoiesis is regulated through a long-range negative feedback loop, whereby tissue hypoxia stimulates erythropoietin (Epo) secretion, which promotes an increase in erythropoietic rate.
Erythropoietin (Epo) is a glycoprotein hormone produced in the kidney that acts on erythroid progenitor cells in the bone marrow. A negative feedback system, in which tissue oxygenation controls Epo production and Epo controls red blood cell (RBC) production, provides homeostasis in oxygen delivery to body tissues.
under these circumstances you expect the rate of erythropoiesis to be increased:
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This graph shows the effect of removal of urchins and limpets (alone and together) on seaweed cover. Select the statement that accurately describes the results shown in this graph.
Sea urchins have a much greater effect than limpets in limiting seaweed cover.
Submit
Limpets have less of an impact on seaweed cover than sea urchins do.
Does the distribution of seaweed get impacted by sea urchin feeding?Although seaweeds and other types of algae are widespread, they rarely form substantial stands.So it seems that the local distribution of seaweeds is constrained by sea urchins.The biggest increase in seaweed cover was seen when both limpets and urchins were eliminated, showing that both species can affect where seaweed is found.Aristotle's lantern is the mechanism used by sea urchins to consume food.It consists of five rigid plates that join together to form a beak.They scrape algae off rocks using their mouth, which resembles a beak.To learn more about sea urchin 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?.
The antibiotic resistance gene is encoded on the donor insert.
Some plants that have undergone genetic modification have genes that render them resistant to specific drugs. In order to distinguish GM plants and cells from non-GM ones, scientists frequently introduce these resistance genes during genetic modification.
Once a bacteria has acquired a resistance gene and incorporated it into its DNA, the bacterium can dominate other bacteria and convey the resistance gene to all of its offspring. Bacteria reproduce quickly, which amplifies resistance.
F In Human-Associated Commensal Escherichia coli, Plasmids Are the Main Carriers of Genes Associated with Antibiotic Resistance.
Antimicrobial resistance mechanisms can be divided into four primary groups: (1) decreasing medication uptake; (2) altering drug targets; (3) rendering drugs inactive; and (4) active drug efflux.
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What tool do geneticists use to determine the mathematical probability of the potential combinations of genotypes that can occur in offspring, given the genotypes of the parents?.
To anticipate all potential allele combinations from a genetic cross, a punnett square is a graphic (recombination). The phenotypes of the kids may be inferred from the genotypes using this figure.
The specific alleles of the female parent are crossed with the specific genotype alleles of the same genes in the male parent to create a punnet square. The outcome will show the potential genotypes and phenotypes of children. This punnet squarecan be used to represent both the carriers and the affected offspring for a certain genetic illness.
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What does the motif of blood symbolize?.
At some stage in time, blood symbolizes been associated with opposites, which include existence/loss of life, demise/redemption, - everlasting existence - innocence/massacre, illness/remedy, the Aristocracy/malediction (hemophilia in the “Blue Blood” descendants of Queen Victoria), generosity/transmission of infections, and enchantment/repulsion.
Spilled or misplaced blood makes the body weaker, combined blood undermines purity, and alcohol or drugs within the blood are poison or corrupt. At any other stage, blood denotes family tree, lineage, and procreation.
While we dream of blood, we regularly assume it is a premonition of demise. however, blood in the nonsecular realm represents power and lifestyle force. So if you see different human beings bleeding for your dream, it means their lifestyle selections are hurting them so you must select your very own course.
In Macbeth, blood symbolizes guilt for the protagonists. As blood is shed several times during the play, it sticks to the assassin and makes them remorseful and feels guilty about their moves. At the beginning of the play just after Macbeth has killed Duncan, he exemplifies blood to describe his guilt for his actions.
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marcie and dylan are having difficulty trying to conceive. their physician indicated that the reason for their difficulty is dylan's low sperm count. what may be causing his low sperm count?
Dylan's spending too much time in a hot tub, may be the reason for low sperm count.
In anisogamous modes of sexual reproduction, the male reproductive cell, or gamete, is called the sperm. Red algae and some fungi generate spermatia, which are immobile sperm cells, whereas animals create spermatozoa, which are flagellated, motile sperm cells.
Low sperm count can hamper reproduction, and it is attributed to many factors including hot water baths, tight underpants, etc.
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Eukaryotic chromatin is composed of which of the following macromolecules?
a. DNA only
b. DNA and phospholipids
c. DNA and proteins
d. DNA and RNA
Eukaryotic chromatin is composed of DNA and proteins macromolecules. So, the correct option is (C).
What is Chromatin?
Chromatin is defined as the mixture of DNA and proteins that make up the chromosomes found in the cells of humans and other higher organisms.
Some proteins such as histones that package the enormous amount of DNA in a genome into a highly compact form that can fit into the cell nucleus. These cells have histone proteins H1, H2A, H2B, H3, H4, which are important for the formation of chromosome structure or condensation of DNA.
Chromatins are "unwound" condensed structures whereas chromosomes are highly packed and more condensed than chromatin. Thus, chromosomes are the major form of chromatin (or genetic material) during cell division.
Thus, Eukaryotic chromatin is composed of DNA and proteins macromolecules. So, the correct option is (C).
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hutchinson-gilford progeria is an exceedingly rare human genetic disorder in which there is very early senility and death, usually from coronary artery disease, at an average age of 13 years. patients, who look very old even as children, do not live to reproduce. which of the following represents the most likely assumption?
The most likely assumption is the disorder may be due to mutation in a single protein-coding gene.
An exceedingly rare human genetic disorder called Hutchinson-gilford progeria in which there is very early senility and death, usually from coronary artery disease, at an average age of 13 years. Patients, who look very old even as children, do not live to reproduce. The most likely assumption is the disorder may be due to mutation in a single protein-coding gene.
DNA sequences that are transcribed into mRNA are protein coding sequences. In which the transcribed mRNA molecules are translated into a polypeptide chain.
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