What is the best form of microbial control you could use for purifying a protein from genetically modified E. coli?
A. diffusion
B. filtration
C. secretion
D. reabsorption
Answers
The best form of microbial control to purify a protein from genetically modified E. coli would be filtration. The correct option is (B)filtration.
Filtration is commonly used in the biopharmaceutical industry for microbial control and purification processes. It involves passing the culture or solution through a filter with a defined pore size that can effectively remove microbial cells, debris, and larger contaminants while allowing the protein of interest to pass through.
Since diffusion (option A) describes the process by which molecules or particles move from an area of higher concentration to an area of lower concentration, it is not commonly employed for protein purification or microbial control.
Secretion (option C) is a process in which proteins are naturally released from the producing cells into the surrounding environment. While it can be used for protein production and purification, it is not specifically a method of microbial control.
Reabsorption (option D) generally refers to the process of absorbing or taking up a substance again. It is not a standard method for microbial control or protein purification.
In summary, filtration (option B) is the most appropriate form of microbial control among the given options when purifying a protein from genetically modified E. coli. However, it's important to note that other purification techniques, such as chromatography and centrifugation, are often used in conjunction with filtration for a comprehensive purification process.
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Related Questions
Which of the following would be considered the strongest evidence that two species are related to one another?
a. common structures
b. shared taxon
c. similar genes
d. same extinction pattern
Answers
i want to paraphrase this part
Likewise, dengue transmission is on rise due to unusual global warming, as various vectors like mosquitoes, previously rare
in this part of the world, are breeding faster. Consequently, the geographical distribution of vector-borne infectious diseases is likely to proliferate with an incremental increase in the duration and intensity of heat and humidity globally. Humanity is now standing at a crossroads. We must now decide which path we want to take. How do we want the future living conditions for all living species to be like?" remarked Greta Thunberg.
Answers
Greta Thunberg's remark serves as a reminder that humanity must make a crucial choice regarding the future living conditions for all species. The escalating transmission of diseases like dengue due to global warming demands immediate action. We have the power to shape a sustainable future and prioritize the well-being of all living beings. It is our responsibility to act decisively, mitigating the effects of climate change and safeguarding the planet for generations to come. Together, we can create a path that fosters a harmonious coexistence for all species.
Similarly, the incidence of dengue transmission has been escalating due to the alarming effects of global warming. Unusual changes in temperature have led to the proliferation of various disease-carrying vectors, such as mosquitoes, that were previously uncommon in this region. This, in turn, has raised concerns about the geographic spread of vector-borne infectious diseases, which are expected to expand as global heat and humidity levels rise.
At this critical juncture, humanity faces a pivotal choice. Greta Thunberg, a prominent environmental activist, highlights the urgency of the situation and calls upon us to consider the consequences of our actions. The future living conditions for all species hang in the balance, and our decisions today will profoundly impact life on Earth. We have the power to shape a future that prioritizes sustainability and the well-being of all living beings, or one that perpetuates the harm caused by climate change. It is our responsibility to act decisively, implementing measures to mitigate global warming and safeguard the planet for generations to come. Together, we can forge a path towards a sustainable and harmonious coexistence for all living species.
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What two letter types would represent the alleles for fin length on a fish if the allele was represented by the letter “F”?
Answers
Fish with long fins would have either genotype "FF" (homozygous dominant) or "Ff" (heterozygous), while fish with short fins would have the genotype "ff" (homozygous recessive).
What are alleles?An allele is a variation of same sequence of nucleotides at the same place on a long DNA molecule.
To represent alleles for fin length on fish using the letter "F", we can use two different letter types to represent the two possible forms of the gene, one inherited from each parent.
Common convention is to use uppercase and lowercase letters to represent the two alleles, with dominant allele represented by the uppercase letter and recessive allele represented by the lowercase letter. Using this convention, two letter types that could represent the alleles for fin length on a fish would be:
"F" to represent the dominant allele for long fins, and
"f" to represent the recessive allele for short fins.
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What is true of nuclear power
It produces greenhouse
It is not a sustainable source of energy
It creates waste that is not only unusable but radioactive
All of the above
Answers
6. When scientists “culture” human cells what exactly does that mean?
Answers
Answer:
The process by which cells are grown under controlled conditions, generally outside their natural environment. After the cells of interest have been isolated from living tissue, they can subsequently be maintained under carefully controlled conditions.
Explanation:
It means that the human cells are being grown outside of the human body in controlled conditions.
With Mitosis, The daughter cells are genetically___?
Answers
Answer:
With mitosis, the daughter cells are genetically identical to each other, and to the parent cell.
Explanation:
The process in which a single parent cell divides into two new genetically identical daughter cells having the same amount of chromosomes as that of parent cell is called mitosis.
Question 12 (3 points)
Use the diagram below to answer the following questions for 1 point each:
1. Identify ONE similarity between mitosis and meiosis.
2. Identify ONE difference in the results of mitosis and meiosis.
3. Identify ONE difference in the processes of mitosis and meiosis.
Answers
Answer:
Production of DNA.
Somatic cells and sec cells.
Diploid and haploid chromosome.
Explanation:
Similarity between mitosis and meiosis is the production of DNA and both passes through the same phases of cell division. Mitosis cell division occur in somatic or body cell whereas meiosis occur in sex cell of plants and animals. Daughter cells that is produced in mitosis are diploid i. e. double number of chromosome while on the other hand, daughter cells that is produced in meiosis are haploid i. e. half number of chromosome.
This wave picked up by the space probe was most likely a(n) — radio wave radio wave infrared ray infrared ray visible light visible light gamma ray gamma ray
Answers
Answer:
Gamma rays
Explanation:
If you really read what was written on the top, it said "extremely high energy and really short wavelengths.
what is the correct order of the rats digestive organs starting at the mouth?
Answers
Answer:
The digestive tract of the rat, similar to the human one, starting from the mouth, involves the pharynx, esophagus, stomach, small intestine and large intestine. The digestive glands can appropriately be divided into the large and small ones.
Explanation:
Answer:hope this picture helps
Explanation:
What is function/purpose of RNA
Answers
Functions of RNA :
Regulation of gene expressionProtein codingProduction of regulatory moleculesDevelopment of gametes by the ncRNA (non-coding RNA)Define Metabolism.. !
Answers
Answer:
Metabolisms are the chemical processes that occur within a living organism in order to maintain life
Explanation:
jeff can feel the water in a pot is still only warm, even though he burned his hand touching the metal pot.
Answers
Answer:
before water would boil, the pot has to be hot first before the water because the heat from the burner will pass through the metal pot because the metal pot is a good conductor of heat and the heated metal will cause the water to warm... therefore it is assume that once the metal pot is hot the water is warm
Which of the following statements best describes how science has developed
over time?
A. Worldwide, scientists work independently to build the scientific
knowledge within their own countries.
B. All useful scientific knowledge has been developed within the past
100 years.
C. Until 50 years ago, only men made contributions to scientific
knowledge.
D. Men and women all over the world have investigated scientific
questions throughout history.
Answers
Answer:
D is the correct answer!!!
Please help my brain cannot comprehend this :p
Answers
Answer:
its the third one
a person running 100m straight
Explanation:
idfk some sh*t we learn in physics class
TRUE/FALSE. Non-shivering thermogenesis is the metabolism of brown adipose tissue (fat) in a newborn.
Answers
The statement "Non-shivering thermogenesis is the metabolism of brown adipose tissue (fat) in a newborn" is true. Which is an important mechanism for maintaining body temperature in cold environments.
Non-shivering thermogenesis is a process by which the body generates heat without shivering, which is particularly important for newborns to maintain their body temperature in cold environments. Brown adipose tissue (BAT), also known as brown fat, is a specialized tissue that is particularly important for non-shivering thermogenesis in newborns. Brown adipose tissue contains a high concentration of mitochondria, which are responsible for generating heat through the process of uncoupled respiration. In this process, the electron transport chain is uncoupled from ATP synthesis, and energy is dissipated as heat.
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1. Key Concept What is the
greenhouse effect?
Answers
Answer:
the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.
Explanation:
Answer:
the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.
Explanation:
Sexual reproduction in animals depends on the production of gametes.
Which of these processes produces gametes in animals? *
Mitosis
Fertilization
O Meiosis
Binary fission
Answers
The process that produces gametes in animals is meiosis.
What is MeiosisMeiosis is a specialized type of cell division that occurs in the reproductive cells, or germ cells, of animals. It involves two rounds of cell division, resulting in the production of four haploid daughter cells, each with half the number of chromosomes as the parent cell.
During meiosis, the genetic material is shuffled and recombined through processes such as crossing over and independent assortment. This genetic variation contributes to the diversity of offspring produced through sexual reproduction.
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Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins, forming a dirt-like substance that’s rich in nutrients. The next season, farmers use this substance as a natural fertilizer for their crops. A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial fertilizer. Answer the following questions to plan an investigation using the steps of the scientific method and help the student find the answer to his question. Part E How would you conduct your investigation? In your answer, explain your independent and dependent variables.
Answers
Answer
no . you should give one plant natural fertilizer and the other artificial fertilizer to decide which works the best
Explanation:
because it is made for tomatoes
Answer:
part E
The dependent variable is the growth rate of the plant. The independent variable is the type of fertilizer used over time. There will be three groups of tomato plants raised from seed: one group will be a control group without any fertilizer, the second group will be planted in soil with artificial fertilizer, and the third group will be planted in soil with compost. The height of the plants will be measured every five days, over a 30-day period.Explanation:
According to Arrhenius, an acid produces H+ ions when dissolved in water?
Answers
Explanation:
According to Arrhenius, the acids are the hydrogen-containing compounds which give H+ ions or protons on dissociation in water and bases are the hydroxide compounds which give OH− ions on dissociation in water.
crossing over in prophase i of meiosis is the source of___
Answers
Genetic variation is caused by crossing over during meiotic prophase I. The exchange of genetic material between non-sister chromatids of homologous chromosomes takes place during prophase I.
In meiosis prophase 1, what crosses over?The exchange of genetic material between non-sister chromatids of homologous chromosomes, or crossing-over, takes place during prophase I. Remember that homologous chromosomes align in pairs, gene for gene down their whole length, generating a configuration with four chromatids known as a tetrad during prophase I.
What happens when prophase I crossing over occurs?Crossover occurs during prophase I and adds genetic diversity by exchanging homologous chromosomal segments. Independent assortment, which considers how the homologous chromosomes line up, adds more genetic variety.
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6) which of the following is a local regulator responsible for activating an enzyme that relaxes smooth muscle cells? a) nitric oxide b) prostaglandin f c) epinephrine d) a and b only e) a, b, and c
Answers
It is commonly accepted that glyceryl trinitrate (GTN) is transformed into NO or a NO congener (S-nitrosothiol, SNO) in vascular smooth muscle cells, which activates guanylate cyclase and relaxes vascular smooth muscle (1, 2).
What particular enzyme relaxes smooth muscles?Increased cGMP in smooth muscle cells will stimulate cGMP-dependent protein kinase, which in turn activates MLCP, causing myosin light chains to be dephosphorylated and eventually causing smooth muscle to relax.
What causes smooth muscle cells to unwind?Removal of the contractile stimulus or the direct action of a drug that causes inhibition of the contractile mechanism both lead to smooth muscle relaxation.
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the tympanic membrane: a. leads from the auricle into the temporal bone. b. surrounds the cochlea and the semicircular canals. c. closes the inner end of the auditory canal. d. is also known as the inner ear.
Answers
The tympanic membrane closes the inner end of the auditory canal is the correct statement.
Option (c) is correct.
The tympanic membrane, commonly known as the eardrum, is a thin, cone-shaped membrane located at the inner end of the auditory canal. It separates the external ear from the middle ear and forms the boundary between the outer and middle ear. When sound waves enter the ear through the auditory canal, they cause the tympanic membrane to vibrate.
These vibrations are then transmitted to the ossicles (three small bones in the middle ear), which amplify and transmit the sound further into the inner ear. The function of the tympanic membrane is to convert sound energy into mechanical vibrations, allowing sound to be efficiently transmitted from the outer ear to the middle ear.
Therefore, option c, stating that the tympanic membrane closes the inner end of the auditory canal, is the correct statement.
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Identify FOUR prescription drugs which are commonly abused.
Answers
Answer:
Oxycodone
Prednisone
Acetaminophen
Morphine
Explanation:
Answer:
Barbiturates
Benzodiazepines
Codeine
Morphine
Place the steps of protein synthesis in order
Answers
Identify the property of water that best describes each
situation
A. A water strider insect is able to walk on water.
B. Water molecules bond with other water molecules
as they are transported throughout a plant.
C. Na+ and Cl- lons dissolve and are able to be
transported into and out of cells.
Answers
Answer:
B. Water molecules bond with other water as they are transported throughout a plant.
Students use alphabet letters to represent the genetic instructions for a trait of an organism. The students write these alphabet letter in graphic organizers. The students are trying to show genetic instructions passing from parent to offspring.
Which graphic organizer does NOT represent asexual reproduction?
Answers
Answer:
It’s B
Explanation:
Individuals who experience an acute stress disorder may experience ___________ symptoms such as a sense of detachment, feelings of unreality, and inability to recall an important aspect of the trauma.
Answers
Individuals who experience an acute stress disorder may experience symptoms such as a sense of detachment, feelings of unreality, and an inability to recall an important aspect of the trauma.
Other common symptoms may include recurrent distressing dreams or intrusive memories related to the traumatic event, avoidance of reminders of the trauma, persistent negative emotional states (e.g., fear, horror, anger, guilt), hypervigilance (being constantly on guard), and exaggerated startle response. These symptoms typically occur within one month following the traumatic event and can significantly impact the person's daily functioning. Individuals who experience an acute stress disorder may experience symptoms such as a sense of detachment, feelings of unreality, and an inability to recall an important aspect of the trauma. Individuals who experience an acute stress disorder may experience symptoms such as a sense of detachment, feelings of unreality, and an inability to recall an important aspect of the trauma.
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What do you think is the same characteristic/attitude of a person and your chosen pets?
Chosen pet: Bird
Answers
Answer:
Eagle: Loves authority & power.
Peacock: Is the crowd-pleaser.
Owl: The 'numbers' guy (or girl)
Dove: The nurturer & helper.
Explanation:
hope it help
have a nice day
in mice, the gene (C) for colored fur is dominant over its allele (c) for white. The gene (N) for normal behavior is dominant over ()n for waltzing. Pairs of mice were mated, and the following results obtained. In each case, give the probable genotypes of the parents:
a) colored normal mated with white normal produced 29 colored normal, and 10 colored waltzers.
b) colored normal mated with colored normal produced 38 colored normal, 15 colored waltzers, 11 white normal, and 4 white waltzers
c) colored normal mated with white waltzer produced 8 colored normal, 7 colored waltzers, 9 white normal, and 6 white waltzers
Answers
The probable genotypes of parents include:
a) CcNn and ccNn
b) CcNn and CcNn
c) CcNn and ccnn
How to determine probable genes?a) The probable genotypes of the parents in this case would be CcNn and ccNn, where C represents the dominant allele for colored fur, N represents the dominant allele for normal behavior, c represents the recessive allele for white fur, and n represents the recessive allele for waltzing behavior.
b) The probable genotypes of the parents in this case would be CcNn and CcNn, where C represents the dominant allele for colored fur, N represents the dominant allele for normal behavior, c represents the recessive allele for white fur, and n represents the recessive allele for waltzing behavior.
c) The probable genotypes of the parents in this case would be CcNn and ccnn, where C represents the dominant allele for colored fur, N represents the dominant allele for normal behavior, c represents the recessive allele for white fur, and n represents the recessive allele for waltzing behavior.
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why shouldnt you move the objective lense towards the stage when focusing