Positive effects of Technology. Less expense, better efficiency, contact channels, increase in networks, etc. Negative effects of Technology. Social isolation, job loss, adverse health effects, scams, etc.
What are the positive effects of technological advancement?In addition to enhancing business strategy, technology has also made trade easier, more effective, and more cost-efficient. In the days before the Internet, businesses were limited to running ads in newspapers and magazines. If they had the funding, they could run ads on TV or radio as well.
Examples of such new technologies contain carbon capture and storage systems, more efficient irrigation techniques, essential medicines, household water purification machines, and manufacturing processes that minimize destruction and corruption
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Glucagon and insulin have antagonistic effects. glucagon signaling results in an increase in blood glucose concentration. What do you expect is the result of insulin signaling?
Since Glucagon and insulin have antagonistic effects, if glucagon signals increase in blood glucose concentration, insulin would result in a decrease in blood glucose concentration.
Glucagon and insulin are both important hormones that play essential roles in regulating your blood glucose (sugar).
Both hormones come from your pancreas — alpha cells in your pancreas make and release glucagon, and beta cells in your pancreas make and release insulin.
The two hormones counterbalance each other to stabilize blood glucose. When blood glucose levels fall too low (low blood glucose), the pancreas pumps out more glucagon.
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Stabilizing selective pressures result in _______. a. rapid, broad evolutionary changes b. limited evolutionary changes c. an increase in genetic diversity d. extreme gene distributions please select the best answer from the choices provided a b c d
A Final statement or concluding statement
Correct answer is ‘B’ .
Stabilizing selective pressures result in limited evolutionary changes
How do selective pressures affect evolution?Stabilizing selection is a type of natural selection that results in a decrease in genetic diversity and the stabilization of population traits over time.
Selective pressures are thought to be forces that drive evolution through natural selection.
Depending on the external conditions, some phenotypes are more advantageous than others.
A phenotype is a specific way that genes are expressed in an organism's physical traits or characteristics.
To work, selective pressure must have at least two possible phenotypes for members of a population to exhibit.
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Nevus, also known as a mole, is a small dark skin growth that develops from melanocytes in the skin. _____ are atypical (meaning abnormal) moles that can develop into skin cancers.
Nevus, also known as a mole, is a small dark skin growth that develops from melanocytes in the skin. dysplastic nevi are atypical (meaning abnormal) moles that can develop into skin cancers.
These are unusual-looking moles that have formless features when observed under a microscope and their presence means that there is an increased risk of melanoma.
What is a Skin Disease?This refers to the growths on the skin that is caused by foreign substances and develops into melanocytes.
Hence, we can see that dysplastic nevi are atypical (meaning abnormal) moles that can develop into skin cancers.
They can appear benign but they are abnormal and they have formless features when observed under a microscope and their presence means that there is an increased risk of melanoma.
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Why is aquatic animal respiratory system is different from ours?
The aquatic animal's respiratory system is different from the human respiratory system because the aquatic animals have gills while the human has lungs.
What is respiratory system?The respiratory system is one of the major systems of the body that helps in the intake of oxygen and removal of carbondioxide as waste products from the body.
The aquatic animals are those animals that live, reproduce and survive in the water while human survive in the terrestrial ecosystem.
Due to the difference in the ecosystem existing between the aquatic animals and humans, they have different respiratory system that functions differently too.
The aquatic animals possess gills which can absorb oxygen from water while the human has lungs which allows the diffuser of oxygen with release of carbon dioxide.
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The respiratory systems of aquatic animals differs from ours aquatic animals are adapted to absorb oxygen from the water they filter while we human diffuse air which is more easier and efficient
This goes to say that our respiratory system is more efficient to use than that of aquatic animals
What is respiration?Respiration can simply be defined as ability of living organisms to exchange of gases between itself and its environment.
There are two major types of respiration which occurs in living organisms. These are:
Aerobic respirationAnaerobic respirationSo therefore, the respiratory systems of aquatic animals differs from ours aquatic animals are adapted to absorb oxygen from the water they filter while we human diffuse air which is more easier and efficient
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What city occupies a relatively flat drainage divide between the indus and ganges plains. The two most productive agricultural areas of india?
Delhi is located on a strip of relatively level land that separates the Indus and Ganges rivers. In terms of agriculture, West Bengal and Uttar Pradesh are India's two most productive regions.
The drainage system of India:
The Indo-Brahma river is believed to have split into 3 primary draining structures and systems-
the Ganges as well as its Himalaya counterparts in the center.the Indus and its 5 branches in the west; and the Assamese section of the Brahmaputra as well as its branches in the east.The disruption that occurred during the Pleistocene epoch in the western Himalayas, namely the elevation of the Potwar Plateau (Delhi Ridge), which served also as a hydrological divide between Indus and Ganga drainage facilities, is most likely what caused the fragmentation. The Ganges and Brahmaputra rivers were also redirected to flowing toward this Bay of Bengal due to the mid-Pleistocene down thrusting of the Malda gap region in between Rajmahal ranges and the Meghalaya plains.
Agriculture areas:
In India, West Bengal produces the most food grains. It is renowned for producing rice. The entire amount of rice produced in West Bengal is 146.05 lakh tonnes, with a yield of 2600 kilos per hectare. It falls under India's states that produce rice. Producing fruits including mangoes, litchi, papaya, pineapple, and citrus is a business in West Bengal.As the main agricultural region of India, Uttar Pradesh ranks well when it regards the cultivation of important Indian state-level crops including wheat bran, maize, sucrose, agricultural goods, and numerous others. It is among the top states of India for grain production. The greatest center for sugarcane production in the world is Uttar Pradesh, where it is also the most widely grown crop.Learn more about the Ganges here:
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What adaptation do seed plants have in addition to the seed that is not found in seedless plants?.
Seed plants have pollen
The dust produce male gametes in the wake of entering the female gametophyte. The male gametes intertwine with the egg cell and structure the undeveloped organism inside ovary which develops and frames seeds. The vascular seed plants come up short on dust yet rather creates male gametes in gametangia which are supplanted by the dust in the seed plants.
What adaptation do seed plants have?Seeds and pollen as a Developmental Transformation to Dry Land
Capacity tissue to support development and a defensive coat give seeds their predominant transformative benefit. A few layers of solidified tissue forestall parching, liberating propagation from the requirement for a steady stockpile of water.
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What type of microorganism can live and multiply only inside an appropriate host cell?
Answer: Viruses
Explanation:
Viruses are tiny infectious agents that rely on living cells to multiply. They may use an animal, plant, or bacteria host to survive and reproduce.
If you do an ames test on a substance and the results show many bacteria colonies growing, what does this indicate?
If in an Ames test the result with many bacteria colonies growing indicates that the chemical that is being tested is a mutagen.
Any physical or chemical agent that has the ability to alter an organism's genetic makeup and result in a mutation is referred to as a mutagen.
The Ames test is a biological experiment used to evaluate a chemical compound's potential for mutagenicity. It makes use of bacteria to examine whether a specific chemical can result in DNA alterations in the test organism. Bruce N. Ames created the test in the 1970s.
A large number of colonies indicates that the chemical has caused alterations in the genetic material of the bacteria. Since cancer is frequently linked to mutation, a positive test result will suggest that the substance is mutagenic and so may serve as a carcinogen but not necessarily.
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What is the name of the control mechanism that is used to ensure that all necessary information for a transaction has been entered?
Completeness control - The aim is to make sure that the accounting records don't contain any legitimate transactions that have been missed so as to avoid the risk of the company's assets being inflated.
The criterion for data in a software system is whether the data is accurate or inaccurate, or whether it leads to accurate information, Accurate information leads to accurate decision-making, which in turn leads to agreements, stability, and solid management (in a non-profit framework) or a competitive edge (in a for-profit framework).
It is a crucial component of all data handling tasks, whether you are gathering data on the ground, processing data, or getting ready to deliver data to stakeholders. Your results won't be accurate if your data is inaccurate from the start. For this reason, data must be verified and checked before use. To minimize any project flaws, data must be analyzed for quality, clarity, and specificity. Without data analysis, you run the danger of making judgments based on faulty data that is not truly representative of the current situation.
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The portion of the small intestine that attaches to the cecum is the? appendix. ileum. haustrum. jejunum. duodenum
The portion of the small intestine that attaches to the cecum is the Ileum.
Hence Option (b) is correct.
With a length of almost 1.8 m(6 feet), the ileum is the section of the small intestine that is the longest.
Compared to the jejunum, it is thicker, more vascular, and has more advanced mucosal folds.
At the ileocecal sphincter, the ileum connects with the cecum, the first segment of the large intestine (or valve).
The small intestine's coiled tube is separated into three sections. These are the duodenum, jejunum, and ileum, arranged proximally (at the stomach) to distally.
The 25.4 cm (10 in) long duodenum, which starts at the pyloric sphincter, is the shortest section.
The jejunum connects the duodenum to the ileum and is roughly 0.9 m (3 feet) long (in life). The jejunum and the ileum, the last section of the small intestine, do not have a distinct boundary.
Hence, The portion of the small intestine that attaches to the cecum is the Ileum.
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Which genetic change causes alterations in only one or a few nucleotide bases?
The genetic change causes alterations in only one or a few nucleotide bases in known as mutation.
A mutation is a change in a brief section of a genome's nucleotide sequence. Another frequently replaces one nucleotide in point mutations; other changes involve the insertion or deletion of one or more nucleotides.
Errors in DNA replication or the harmful effects of mutagens, such as chemicals and radiation, which react with DNA and alter the architecture of individual nucleotides, are the leading causes of mutations.
DNA repair enzymes are present in all cells and work to reduce the frequency of mutations. These enzymes reduce genetic information loss, double-strand break formation, and DNA crosslinking by repairing DNA damage.
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What relationship did boyle and joss-reid (2004) predict about sense of humor and illness symptoms?
The negative correlation relationship did boyle and joss-reid (2004) predict about sense of humor and illness symptoms.
A sample of 504 people divided into three groups was used to study the impact of sense of humour on health.
The following were the hypotheses:
1. Humor would be significantly connected with health after adjusting for other factors.
2. That the evaluation of the factor structure of the Multidimensional Sense of Humor Scale (MSHS) would support its construct validity in the Australian context.
3. That people with a greater sense of humour would report significantly higher levels of good health when compared to those with less humour.
Their findings supported the idea that a sense of humour is linked to health and also validated the MSHS instrument's validity and reliability.
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In an isolated population of 1000 individuals, 444 are genotype mn, 478 are mm, and 78 are nn. What are the frequencies of the m and n alleles in this population?.
f(M) = 0.7, f(N) = 0.3 are the frequencies of the m and n alleles in this population.
What is the relative fitness of genotype BB What is the relative fitness of genotype BB?
A relative fitness of 1.0 can occur for more than one genotype. B. The relative fitness of genotype BB in a population of chickens used as a sample is 1.0. The selection coefficients for genotype Bb and genotype Bb are respectively 0.3 and 0.4.Which of the following processes tends to increase genetic variation in a population?
Genetic diversity is typically increased by mutations while being decreased by the other three mechanisms. Migration tends to homogenize genetic variation, reducing the genetic diversity between populations, whereas natural selection and genetic drift tend to increase it.Where are alleles?
Alleles are matching genes; one from our biological mother, one from our biological father. We have two copies of every gene (strings of code that drive some biological function on our chromosomes). They can be identical, but they can often have slight differences.Learn more about alleles
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A respiratory device involving a surgical opening in the neck into the trachea is:________.
Answer:
A tracheostomy
Explanation:
A tracheostomy is an opening created at the front of the neck so a tube can be inserted into the windpipe (trachea) to help you breathe. If necessary, the tube can be connected to an oxygen supply and a breathing machine called a ventilator.
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Does the genetic message get altered when the information is conveyed intracellularly under normal conditions? Support your answer with an example
Genetic transmission is the mechanism that drive evolution.Asexually reproducing organisms reproducing organisms reproduce using mitosis, while the sexually reproducing organisms reproduce using meiosis.
Both these mechanisms are involved in duplication of DNA which then get passed to offspring and RNA is key component in the duplication of DNA. The genetic information heritable biological information coded in the nucleotide sequence of DNA or RNA.
Genetic material is includes genes and DNA which control the development , maintenance and reproduction of organisms. These messages is passed from generation to generation through inherited units of chemical information. It consist of only two transcription and translation they known as gene expression , during this process of transcription store in gene DNA is passed to similar molecule called RNA in nucleus.
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Which of the following is NOT applicable
in the United States?
A. National Oceanic and Atmospheric Administration
(NOAA)
B. Registration, Evaluation, Authorisation and Restriction
of Chemicals (REACH)
C. National Park Service (NPS)
D. Occupational Safety and Health Administration (OSHA)
research on dengue virus according to biological method
Answer:
diagnose dengue, including detection of the dengue virus, viral RNA, viral antigens, and antibodies against the virus in the patient's blood or tissues (Figure 1). The virus can be detected in the blood for only four to five days after the onset of symptoms.Which cranial nerve pair has two sensory branches which both pass through the internal acoustic meatus?
VIII cranial nerve pair has two sensory branches which both pass through the internal acoustic meatus.
A unique somatic afferent nerve is cranial nerve VIII. The vestibular nerve and the cochlear nerve make up its two components. Hearing is made possible by the cochlear portion, while balance and movement are mediated by the vestibular portion.
Both pieces come together to form the vestibulocochlear nerve, which exits the body of the skull through the internal acoustic meatus. Therefore, The auditory vestibular nerve, sometimes referred to as the vestibulocochlear nerve or CN VIII, is a cranial nerve that travels from the inner ear to the brain carrying information about balance and sound.
Therefore, VIII cranial nerve pair has two sensory branches which both pass through the internal acoustic meatus.
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Match the term to its description. (4 points) c 1. astronomical body a 2. comet b 3. galaxy d 4. moon a. an object in space b. a system of stars held by gravitational attraction c. a celestial object consisting of a nucleus of ice and a stream of gas and dust d. an astronomical body that orbits around a planet
Astronomical body - An object in space
Galaxy - A system of stars held by gravitational attraction
Comet - A celestial object consisting of a nucleus of ice and a stream of gas and dust
Moon - An astronomical body that orbits around a planet
What are different Astronomical bodies ?The astronomical bodies or the space bodies are the entities and the substances that are present in space. Some astronomical bodies are
Galaxy: It is the system of stars that are held together with the gravitational pull.Comet: These are the celestial bodies in space that are consist of ice, gas, and dust.Moon: It is the outer space body that revolves around the earth.Astronomical body: It is an object that is present in space.Learn more about Astronomical bodies here:
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In a hardy-weinberg population, 16% of individuals display the homozygous recessive phenotype. What proportion of the population will be heterozygous carriers of the recessive allele?.
The proportion of the population will be heterozygous carriers of the recessive allele is 0.48.
What is Hardy-Weinberg principle?
Hardy-Weinberg principle says that allele frequencies in a population are stable and is constant from generation to generation. The gene pool (total genes and their alleles in a population) remains a constant. This is called genetic equilibrium. Sum total of all the allelic frequencies is 1. Individual frequencies, for example, can be named p, q, etc. In a diploid, p and q represent the frequency of allele A and allele a. The frequency of AA individuals in a population is simply p². This is simply stated in other ways, i.e., the probability that an allele A with a frequency of p appear on both the chromosomes of a diploid individual is simply the product of the probabilities, i.e., p². Similarly. that of aa is q², of Aa 2pq. Hence, p²+2pq+q²=1, is a binomial expansion of (p+q)².By given data
[tex]q2=16%[/tex]%
[tex]q2=\frac{16}{100}=0.16[/tex]
[tex]q=0.4[/tex]
[tex]p=1-0.4=0.6[/tex]
[tex]2pq=2(0.6)(0.4)=0.48[/tex]
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The energy content and biomass of ________ is lowest in any terrestrial food web.
The energy content and biomass of the top carnivore is the lowest in any terrestrial food web.
The terrestrial food web connects all land animals, from the smallest soil bacteria to the largest forest beasts. The relationships between herbivores (animals that consume plants), scavengers (animals that consume dead animals or plants), and decomposers are investigated by ecologists at SERC.
Write down the principal producers, herbivores, omnivores, and predators for the selected habitat to establish a terrestrial food web. Arrows that depict a predator and prey are used to connect them. The finished product can resemble a food web or map. The tundra, taigas, temperate deciduous woods, tropical rainforests, grasslands, and deserts are a few examples of the terrestrial food web.
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Which factor can confound neuroprognostication during the post-cardiac arrest phase?
Targeted temperature management factor can confound neuroprognostication during the post-cardiac arrest phase.
What is post cardiac arrest?After a patient has been revived from a cardiac arrest, they may experience post-cardiac arrest syndrome, an inflammatory condition of pathophysiology. The body goes through a special kind of global ischemia during cardiac arrest.Global brain damage, myocardial failure, macrocirculatory dysfunction, increased susceptibility to infection, and persisting precipitating pathology are all symptoms of the clinical condition known as post-cardiac arrest syndrome.These effects, which include movement issues, memory loss or impairment, speech difficulties, weakness or immobility, and cognitive impairments including problems with attention, focus, and visual-motor skills, may be permanent or they may get better with time.Care after a cardiac arrest requires a variety of management techniques. To diagnose and treat coronary artery obstructive disease, early invasive coronary angiography should be taken into consideration. The primary shock treatment involves vasopressors like norepinephrine and dobutamine.Learn more about cardiac arrest here:
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A virus life cycle that involves the incorporation of the viral dna into the host chromosome is.
A virus life cycle that involves the incorporation of the viral DNA into the host chromosome is lysogenic cycle.
What is Lysogenic cycle?For viral entry and replication within cells, the lysogenic cycle is a complement to the lytic cycle. While both bacterial phages and animal viruses share the lytic cycle, animal viruses are more likely to exhibit the lysogenic cycle.
The stages of the lysogenic cycle are as follows:
The viral genome invades the cell The viral genome merges with the host cell's genome. The host cell's DNA When a cell divides, virus chromosomes are passed on to the daughter cells by the polymerase. The viral genome separates from the host cell's DNA and enters stage 2 of the lytic cycle at any time the virus is "activated".Learn more about Lysogenic cycle here:
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Which model holds true to explain the synthesis of atp by energy released from electron transport chain?
Chemiosmotic coupling holds true to explain the synthesis of atp by energy released from electron transport chain.
Peter Mitchell suggested that it would be possible to produce ATP by using an electrochemical gradient of protons across a membrane. The process is known as chemiosmosis because he compared it to osmosis, which is the diffusion of water across a membrane. Only a membrane protein known as ATP synthase allows hydrogen ions in the matrix space to pass through the inner mitochondrial membrane.
ADP is converted into ATP by ATP synthase as protons pass through. Oxidative phosphorylation describes the process by which ATP is produced in mitochondria by chemiosmosis. Proton gradient, ATP synthase, and proton pump are the essential elements required for the chemiosmosis process.
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why are silkworm economically importance?
Answer:
The silkworm litter is used for bio-gas production and used as a fuel for cooking in the rural area. Thus sericulture not only provides silk for fashionable clothings, it also provides several very useful bye products to the human society.
What is the arrangement of the phospholipids a substance encounters as it passes through the plasma membrane?
The phospholipids in the plasma membrane are arranged in two layers, called a phospholipid bilayer, with a hydrophobic, or water-hating, interior and a hydrophilic, or water-loving, exterior.
Phospholipids are a class of lipids whose molecule has a hydrophilic "head" containing a phosphate group and two hydrophobic "tails" derived from fatty acids, joined by an alcohol residue (usually a glycerol molecule). Marine phospholipids typically have omega-3 fatty acids EPA and DHA integrated as part of the phospholipid molecule. The phosphate group can be modified with simple organic molecules such as choline, ethanolamine or serine.
Phospholipids are a key component of all cell membranes. They can form lipid bilayers because of their amphiphilic characteristic. In eukaryotes, cell membranes also contain another class of lipid, sterol, interspersed among the phospholipids. The combination provides fluidity in two dimensions combined with mechanical strength against rupture. Purified phospholipids are produced commercially and have found applications in nanotechnology and materials science.
In aqueous solutions, phospholipids are driven by hydrophobic interactions, which result in the fatty acid tails aggregating to minimize interactions with the water molecules. The result is often a phospholipid bilayer: a membrane that consists of two layers of oppositely oriented phospholipid molecules, with their heads exposed to the liquid on both sides, and with the tails directed into the membrane. That is the dominant structural motif of the membranes of all cells and of some other biological structures, such as vesicles or virus coatings.
Phospholipid bilayers are the main structural component of the cell membranes.
In biological membranes, the phospholipids often occur with other molecules (e.g., proteins, glycolipids, sterols) in a bilayer such as a cell membrane. Lipid bilayers occur when hydrophobic tails line up against one another, forming a membrane of hydrophilic heads on both sides facing the water.
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During the embryonic period, the endoderm is formed, which will develop into the?
Answer:
in the fetus
Explanation:
because the development of an emrory occurs in an oviduct when a man cooperate
If a client receiving parenteral nutrition develops eczema, the client is probably experiencing what defieciency?
The client is probably experiencing essential fatty acid deficiency.
What is fatty acid deficiency?A global scaly dermatitis made up of thicker, erythematous, and desquamating plaques is brought on by an essential fatty acid deficit. Long-term parenteral nutrition without lipid supplementation, extremely low-fat diets, anorexia nervosa, alcohol use disorder, cystic fibrosis, and nephrotic syndrome are a few factors that might contribute to fat malabsorption in the gastrointestinal tract.Eczema could be an indication of an essential fatty acid shortage in a patient receiving fat-free parenteral nutrition. Vitamin C deficiency symptoms, such as bleeding gums and the destruction of scar tissue, do not cause eczema. Eczema is not a symptom of inadequate protein-energy intake. Phospholipids and sterol are produced by the body, therefore deficiencies don't exist.Learn more about fatty acid here:
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A ddntp is often used in the sanger sequencing process. Compared to the normal dna precursors, ddntps lack a(n)___________ at the _____________ carbon
The ddNTP lacks the oxygen atom at 3' carbon in addition to at the 2'carbon which is lacking in the dNTP.
What is Sanger sequencing?It is a chain termination method developed by Frederick Sanger and colleagues in 1977.
The process to determine the sequence of nucleotide bases in a part of a DNA molecule is called DNA sequencing. In the process of Sanger sequencing, the DNA molecule to be sequenced is copied multiple times by using polymerase chain reaction (PCR).
This creates DNA fragments of different lengths. Fluorescent labelled dideoxynucleotides are then used to terminate further chain formation.
This process marks the end of fragments and allows sequence determination. Therefore, a ddNTP is used in the Sanger Sequencing process. Compared to the normal DNA precursors, ddNTP lacks oxygen at the 3' carbon.
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Mueller et al. created a strain of mice that lacked the receptor that normally responds to a bitter substance called cyx. The mice that did not have this receptor?
Mueller et al. created a strain of mice that lacked the receptor that normally responds to a bitter substance called cyx. the mice without this receptor did not avoid cyx.
What is cyx receptor?
cyclohexamide(cyx) is a toxic antibiotic with a unique chemical structure genrated by the actinomycete, streptomyces griseus,has emerged as a primary focus of studies on mammalian bitter taste.Rats and mice avoid it at concentrations well below the thresholds for most bitter stimuli and T2R G-protein coupled receptors specific for cyx with appropriate sensitivity identified for those species.Like mouse and rat,golden hamsters,Mesocricetus auratus, also detected and rejected micromolar levels of cyx.
the gene for the high affinity cyx receptors is a member of a cluster of 5 orthologous T2R genes that are likely rodent specific ;thus "cyx clade " is found in the mouse,rat and probably hamster, but not in the human or rabbit genome.
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