Imagine that you have set up a genetic screen to identify e. Coli mutants that cannot metabolize the amino acid tryptophan for energy. Beginning with a master plate containing many colonies, you prepare replica plates on medium with glucose or tryptophan as the only energy source. You would look for colonies that _____.

Answers

Answer 1

Replica plates on medium that only contain glucose or tryptophan as a fuel source. You would search for colonies that can only develop on glucose-containing plates.

How do RNA hairpin twists and the end of transcription in E. coli connect to one another?

Complementary base pairing produces the twists that divide the RNA transcript from the transcription bubble. The highest frequency of GbM is found in "housekeeping" genes, while the lowest frequency is found in genes with the most varied expression.

The hairpin loop that forms on the mRNA strand during transcription divides the DNA template strand from the RNA polymerase. The mechanism is known as rho-independent or intrinsic termination, and the sequences involved are known as terminator sequences.

To know more about genes visit:  brainly.com/question/8832859

#SPJ9


Related Questions

Classify a pet dog select all that apply

Answers

Dogs are classified as follows:

Kingdom—Animalia (note the Latinized spelling)
Phylum—Chordata (presence of a nerve cord along the back)
Class—Mammalia (presence of hair, milk glands)
Order—Carnivora (meat eaters)
Family—Canidae (dog family)
Genus, species—Canis familiaris.

(i can’t exactly help because there are no answer choices . sorry)

Answer: Hey, can you please give us options? It'd be helpful for us to assure the answer we give will be correct.

Explanation:

how much protein (amount in mg) do you have for each unknown based on the original volumes? in other words, you started with 10 ml of extract. how much protein did this 10 ml contain? what about your samples?

Answers

This is an experiment that will be done in the laboratory. The exact protein based on the originals volumes can easily be obtained by Concentration (mg/ml) = Absorbance at 280 nm divided by path length (cm.) Pure protein of known absorbance coefficient.

What is  protein MG?A protein in urine test quantifies the amount of protein in your urine (pee). Your urine typically contains relatively little protein. If your urine contains a lot of protein (proteinuria), you may have a kidney issue. In order to produce urine, your kidneys filter excess water and waste from your blood.Large molecules called proteins are necessary for your body to function properly. Every aspect of your body, including your blood, contains protein. The huge protein molecules are prevented from leaving your body through urine by microscopic filters that your kidneys use to remove waste from your blood.Protein can leak into your urine if your kidneys aren't working properly. high quantities of protein over time in your urine

To learn more about what is  proteinMGrefer:

https://brainly.com/question/14649240

#SPJ9

Two Questions pls help :)

Crossing over is responsible for some of the variation seen in offspring produced by sexual
reproduction. Explain what this means.

Compare the number of different allele combinations on the chromosomes in the gamete cells when crossing over occurs and when it does not?

Answers

Crossing-over occurs during prophase I, and it is the exchange of genetic material between non-sister chromatids of homologous chromosomes.

Chromosomes ?The thread-like components known as chromosomes are found in the nucleus of both animal and plant cells. Long segments of DNA are carried by chromosomes, which are organelles that can be found in the nucleus of cells. The substance that houses genes is called DNA. It serves as the foundation for the human body. Additionally, proteins found in chromosomes aid in the appropriate structure of DNA. Humans typically have 46 chromosomes, or 23 pairs of them in each cell. The appearance of twenty-two of these pairs, known as autosomes, is the same in both sexes. Males and females have different 23rd pair sex chromosomes.

To learn more about Chromosomes ?refer to:

https://brainly.com/question/11912112

#SPJ13

An object whose volume is calculated by multiplying length, width and height.

Answers

A rectangular prism would be your answer.

Pls help In 4 sentences describe a couple of areas in the brain that are responsible for creativity.

Answers

Answer: frontal cortex

Explanation: frontal cortex has been thought of as the hub or center of creativity as it seems to be responsible for many of the functions that contribute to creative thinking.

in addition to epinephrine, your body also releases a steroid that responds to stress. epinephrine wears off quickly, but the steroid, corticosterone, can last hours. where we would predict that corticosterone (the signaling molecule) would bind to its receptor?

Answers

The glucocorticoid receptor (GR, or GCR) also known as NR3C1 (nuclear receptor subfamily 3, group C, member 1) is the receptor to which cortisol and other glucocorticoids bind.

By interacting with mineralocorticoid and glucocorticoid receptors in the brain, corticosteroid hormones help the body adapt to stress (MR and GR). These receptors serve as important transcription factors in considerable part.

The glucocorticoid receptor controls how the body will react to stress, even though cortisol is a blatant indicator that stress is there. A mechanism that affects the production of specific stress-response proteins is activated when cortisol binds to the glucocorticoid receptor.

To learn more about glucocorticoid receptor follow this link

https://brainly.com/question/13639832?referrer=searchResults

#SPJ4

during cell division, dna molecules are replicated in a semiconservative manner. what happens to the original dna molecule during semiconservative replication?

Answers

the original dna acts as a template so it can build a new strand

invariant residues are those that are essential for the structure and/or function of the protein and cannot be replacwd by other residues. which amino residue in the globin chain is most likely to be invariant

Answers

The amino residue in the globin chain is most likely to be invariant is His F8

The invariant amino acid residues is most likely to be Histidine F8. The nitrogenous component of the  i oda ole ring of histidine F8 would serve as one of the ligands to which the iron in the heme group would attach. This residues often play a pivotal role in the structure and function of both myoglobin and hemoglobin. Futthermore, it is essential for the correct binding of oxygen. Thus, substitution or replacement of this amino acid has a tendency to interfere with the binding ability of the protein and could also impact how effectively oxygen is being released. It is however, worthy of note that in these two species (myoglobin and hemoglobin) when compared several residues in both the E helix and F helix are considered invariant (they contain distal His E7).

To learn more about amino residue in the globin chain. Click, https://brainly.com/question/21884818

#SPJ4

How many cells are there are each of the beginning of the cell cycle?

Answers

There is just one cell at the start of cell division or the cell cycle.

A mother cell divides twice, once through mitosis to produce two daughter cells and once through meiosis to produce four daughter cells.

What are cell division and cell cycle?

The cycle of a cell's growth and division entails a variety of processes. A cell spends the majority of its time, known as interphase, developing, duplicating its chromosomes, and preparing to divide. The cell continues its division process through mitosis after exiting interphase. Each of the freshly produced cells, known as daughter cells, enters its own interphase and initiates a new cycle of the cell.

The two different cell division processes are meiosis and mitosis.

During the mitotic cell cycle phase, which is also known as division, replicated chromosomes are split into two new nuclei. Cell division known as mitosis creates genetically identical cells with a conserved chromosome number.

In sexually reproducing mammals, meiosis is a special type of germ cell division that produces gametes, such as sperm or egg cells. After two rounds of division, four cells with a single copy of each chromosome are created.

To know more about cell cycle visit:

https://brainly.com/question/7196669

#SPJ10

What differences do you notice between what happens in the Rest activity level and what happens in the Jog activity level?

please help i give the 20 pt or more or 50

Answers

The Rests activity level and what happens in the Jog activity level It is lower while you are asleep and at rest and higher while you exercise.

When you exercise your muscles need extra oxygen. That's about three times more than when the muscle is resting. This need means that your heart beats faster and your pulse quickens. Frequent exercise strengthens the heart and helps circulate blood throughout the body. A stronger heart means more blood is pumped through the body each time the heart beats.

This makes the heart beat less and distributes the same amount of blood. Heart rate can increase dramatically from a resting heart rate of 60-80 beats per minute to a maximum heart rate of about 200 in young adults. Running redirects blood flow to the tissues that need it most. For example muscles in the leg, and arteries relax, and blood flow increases. Endurance exercise increases parasympathetic activity and decreases sympathetic activity in the resting human heart.

Learn more about muscles here:-https://brainly.com/question/13920046

#SPJ1

why does the membrane of an egg cell change it’s structure immediately after fertilisation

Answers

After fertilization by a single sperm, the cell membrane changes, blocking the entry of additional sperm.

How does the egg change upon fertilization?

The fertilized egg is a single cell for the first 12 hours following conception. It splits into two cells after about 30 hours. The two cells divide into four after about 15 hours. And after three days, the fertilized egg cell has developed into a 16-cell berry-like structure.

What is the purpose of the membranes in an egg?

Directly below the shell are two membranes, the outer and inner shell membranes. These membranes prevent fluids from the egg from evaporating too quickly and protect its contents from bacterial invasion.

To know more about cell membrane :

https://brainly.com/question/13524386

#SPJ10

identify which organism possesses traits that enable it to exploit the rocky shoreline more efficiently than the other populations in the community. explain.

Answers

The organism which possesses traits that enable it to exploit the rocky shoreline more efficiently than the other populations in the community is orange mussels.

In an ecosystem, an orange mussels is referred to as a keystone species.

An experiment was conducted on different species of organisms by placing them along a rocky shoreline to find our their particular traits and characteristics.

A rocky shoreline is a restricted space with limited and fixed resources.

Only those organisms can survive in a rocky shoreline who are adaptive, less vulnerable to harsh conditions and have high rate of reproduction.

In such experiment, the organism which possessed the abovementioned characters were orange mussels as they possess stable population and high exploitation rate of reproduction.

If you need to learn more about heterotroph organisms click here:

https://brainly.com/question/21450466

#SPJ4

Which of these organelles is NOT found in Animal Cells? Golgi Apparatus Chloroplasts Cell membrane Cell Wall (large) Central Vacuole Mitochondria​

Answers

Answer:Chloroplasts,is NOT found in animal cells

Explanation:

What is the function of the cell wall?
A. to contain the genetic information of an organism
B. to package proteins in an animal cell
C. to transport materials throughout a cell
D. to provide structural support for a plant cell

Answers

Answer:

D

Explanation:

the answer is d the cell wall provides support and protection

A basketball is dropped and each time it bounces, the maximum height it reaches becomes smaller and smaller. Is this an example of a system in which nonconservative forces are acting?.

Answers

Yes, It is an example of a system in which non-conservative forces are acting.

What are non-conservative forces?

When work done by the force depends on the path followed by the body, the force is said to be non-conservative. examples include Frictional force, Air resistance, Viscous force.

When the basketball hits the ground with kinetic energy, it loses some of the energy to the ground and then with the action reaction pair with the ground, is bounced back but with lower energy to a lower height.

Learn more on non-conservative forces from:

https://brainly.com/question/24248748?referrer=searchResults

#SPJ4

what is the name of the enzyme complex that is responsible for synthesis of rna? (note remembering names of important enzymes is required for this course)

Answers

Answer:

RNA Polymerase is the enzyme responsible for the synthesis of RNA

Explanation:

Ribonucleic acid [RNA] is synthesized from DNA in a process known as transcription. this process is facilitated by RNA polymerase enzyme. The corresponding RNA produced is complementary to the parent DNA

While DNA is usually double-stranded, RNA is single-stranded and they are synthesized from each strand of DNA.

RNA polymerase is responsible for unwinding the double strands of DNA and copying the information into the newly formed RNA strand.

To learn more about RNA polymerase, check here

https://brainly.in/question/41898645      

The enzyme responsible for the synthesis of RNA is RNA polymerase

RNA polymerase is responsible for unbinding the double strands of DNA into two single strands of the RNA and transcribing the information in DNA into the newly formed RNA

This process is known as Transcription

there are four types of RNA polymerase

RNA polymerase I; Synthesize most ribosomal RNA [rRNA]RNN polymerase II; Synthesize messenger RNA [mRNA] RNA polymerase III; Transcribe ribosomal RNA into transfer RNA [tRNA] andRNA polymerase IV and V; which are mostly found in plants

To learn more about RNA polymerase, click here

https://brainly.in/question/41898645

#SPJ4

Which type of bonds share electrons?

A. Covalent bonds
B. Ionic bonds
C. Carbon bonds
D. Hydrogen bonds

Answers

Answer: A. Covalent bonds.

Explanation: Trust me.

What is the term fo the material though which wave moves

Answers

The material through which a wave moves is called a medium.

What are waves?

wave: the regular, systematic spread of disturbances from one location to another. The waves that travel on water's surface are the most well-known, but waves also exist in sound, light, and the movement of subatomic particles. The disturbance oscillates periodically (see periodic motion) with a set frequency and wavelength in the simplest waves. While electromagnetic waves (see electromagnetic radiation) do not require a medium to travel through and can move through a vacuum, mechanical waves, like sound, need one. The characteristics of the medium affect how a wave travels across it. also see seismic wave.

Many waves require something to travel through. Water waves travel along the surface of the water, and sound waves travel through air. You can even make a wave travel along a rope. The material through which a wave travels is called a medium. Gases (such as air), liquids (such as water), and solids (such as ropes) all act as mediums. Waves that require a medium through which to travel are called mechanical waves.

Hence The material through which a wave moves is called a medium.

To learn more about wave from the given link

https://brainly.com/question/1968356

#SPJ9

the deltoid muscle fibers are separated into . the deltoid muscle fibers are separated into . superficial and deep anterior, middle, and posterior lateral, medial, and proximal superior, middle, and inferio

Answers

Answer:

anterior, middle, and posterior

Explanation:

hope it helps though have nice day

why is it important to study the intentions of matter and energy on earth as an interconnected system 

Answers

It is important to study the intentions of matter & energy, so that we know more about our earth. We must know what surrounds us, & what happens from our day to day life in space. Matter & energy consists of what our earth is made of, & it consists of important properties such as gravity.
Energy and Matter are essential concepts in all disciplines of science and engineering, often in connection with systems. “The supply of energy and of each needed chemical element restricts a system's operation—for example, without inputs of energy (sunlight) and matter (carbon dioxide and water), a plant cannot grow.

What happens to the lungs when air is blown in?

Answers

Your lungs have more room to grow larger as they fill up with air.
Every time you inhale air, dozens of body parts work together to help get that air in there without you ever thinking about it. As you breathe in, your diaphragm contracts and flattens out. This allows it to move down, so your lungs have more room to grow larger as they fill up with air.

What does iron measure in water

Answers

Answer: The standard limit for iron in drinking water is 0.3 mg/L

(If you wat density)

Explanation:

The number below the matching color square represents,

What did Darwin see in South America that surprised him?

Answers

Answer:

In South America, Darwin saw fossils of sea animals high in the mountains.

Explanation:

consider the bacterium thiomargarita namibiensis. imagine you are comparing two individuals that are the same size. individual 1 has a vacuole that is twice as large as the other, individual 2. which of the two would you expect to have a higher surface area-to-volume ratio for its membrane relative to its cytoplasm?

Answers

When the vacuole size for individual 1 is twice as large as individual 2, individual 1 will have higher surface area-to-volume ratio for its membrane relative to its cytoplasm.

Vacuole is the membrane bound cell organelle more prominent in plant cells. The vacuole is known to increase the surface area-to-volume ratio of the cell. Therefore larger the vacuole, larger is the surface area-to-volume ratio of that cell.

Membrane is the outer layer of the cell and cell organelles. It is made up of the lipid bilayer. It is very essential to separate the components of the cell from each other. Membrane is selectively permeable.

To know more about membrane, here

brainly.com/question/10972012

#SPJ1

in the second half of the glycolytic pathway, atp molecules are produced and with the offset of atps consumed in the first half, the net yield is atps per glucose.in the second half of the glycolytic pathway, atp molecules are produced and with the offset of atps consumed in the first half, the net yield is atps per glucose.

Answers

During the first half of glycolysis, two molecules of ATPs are consumed. In the second half however, 4 molecules of ATPs are produced per glucose. If we remove the two ATPs that has been consumed, the net yield is two ATPs per glucose

Glycolytic pathway is an anaerobic process that converts glucose into pyruvate molecules and Adenosine Triphosphate [ATP]

The pathway consist of 10 steps.

During the first phase [first five steps], 2 molecules of ATP are consumed to two molecules of Glyceraldehyde-3-phosphate [GA3P] which enter the second phase of the pathway.

At the end of the second phase, 4 molecules of ATPs and 2 molecules of pyruvate are produced

To learn more, click here

https://brainly.in/question/2011464

#SPJ4

Which structures does a single cell organism need for movement? question 3 options: cilia and flagella mitochondria and cytoplasm ribosomes and nucleus cilia and cytoskeleton

Answers

The structures that a single-cell organism need for movement include cilia and flagella (Option A).

What are cilia and flagella?

Cilia and flagella are subcellular structures that cells use to move in the surrounding media. These structures are composed of monomers that connect each other and they can suffer polymerization-depolymerization cycles in order to maintain a movement in response to environmental stimuli. For example, cilia are composed of microtubules that link to the plasma membrane.

Therefore, we can conclude that cilia and flagella are structures of the cytoskeleton that help microorganisms to move in their surrounding environment.

Learn more about cilia and flagella here:

https://brainly.com/question/226194

#SPJ1

A person begins at 0 and walks 5 meters to the right, turns around and walks 8
meters to the left. What is the distance? What is the displacement?

Answers

The distance is calculated out to be 13 meters and the displacement is calculated out to be 3 meters.

What is distance and displacement and how it calculated out to be so?Distance is the measure of how many meters or kilometers you covered in the time period under consideration.Distance is the measure , or a quantity to measure the distance or the product of the speed and time.Displacement is the shortest distance from the initial point to final point.Here is given that the man walks 5 meters to the right and turn around and walks 8 meters to the left.The distance is 13 meters and displacement is 3 meters.

To know more about distance visit:

https://brainly.com/question/15172156

SPJ13

What systems or system is responsible for the tingling in our foot?

Answers

Answer: Peripheral neuropathy, a result of damage to the nerves located outside of the brain and spinal cord (peripheral nerves), often causes weakness, numbness and pain, usually in the hands and feet. It can also affect other areas and body functions including digestion, urination and circulation.

Your peripheral nervous system sends information from your brain and spinal cord (central nervous system) to the rest of your body. The peripheral nerves also send sensory information to the central nervous system.

Peripheral neuropathy can result from traumatic injuries, infections, metabolic problems, inherited causes and exposure to toxins. One of the most common causes is diabetes.

People with peripheral neuropathy generally describe the pain as stabbing, burning or tingling. In many cases, symptoms improve, especially if caused by a treatable condition. Medications can reduce the pain of peripheral neuropathy.

If this helped you please consider marking this as the Brainliest Answer, if i make it to 10, I can be promoted to an expert. How? - Once you get more than 1 answer of a question. A message is shown above each answer that is "Mark as brainiest". Click on the option to mark it the best answer. Thank you!

What is the difference between old agriculture and new agriculture?

Answers

Answer: Traditional agriculture relies on outdated information, outdated tools, and organic fertilisers, whereas contemporary agriculture relies on technologically improved tools and machinery

n the chemical equation for photosynthesis, carbon dioxide and water are converted to glucose and oxygen.

6CO2 + 6H2O ® C6H12O6 + 6O2

Which component could be added to complete this chemical equation?
light energy
ATP and NADPH
chemical energy
rubisco

Answers

Answer: Light energy is the element that may be included to complete this chemical equation. The correct answer is A.

Explanation:

Photosynthesis: The process of producing food by plants and other organisms that possess chlorophyll is known as photosynthesis. As a byproduct of the process, oxygen is released along with glucose.

Water and carbon dioxide are required for photosynthesis, which can only occur in the presence of sunlight. Upon completion, glucose is produced as an energy source and oxygen is released as a byproduct.

Only creatures that contain chlorophyll can carry out the process because chlorophyll helps to catch sunlight to complete it. Chlorophyll is found in plant leaves.

Thus, the correct answer is option A, Light energy.

To learn more about photosynthesis, visit:

https://brainly.com/question/17947165

Other Questions
Please help I know its only 10 points but please mor n, winquist j. self-focused attention and negative affect: a meta-analysis. psychol bull. 2002 jul;128(4):638-62. doi: 10.1037/0033-2909.128.4.638. pmid: 12081086. 29. How many protons, neutrons, and electrons does 35/17C1+ have? Sierra hiked to the 5 mile marker. She then hiked 3more miles. At noon she hiked back to where she started.How many miles did Sierra hike in total? 3 reasons why you like ocean waves. (please be specific) Based on the map above, what Italian city-state had begun to build a commercial trade empire in the Mediterranean Sea by 1400? The Ottomans Papal States Milan Venice a chemical that denatures proteins is most likely to be classified as a(n) agent. a chemical that denatures proteins is most likely to be classified as a(n) agent. detergent bacteriostatic bacteriocidal antiseptic Describe the layout of a typical Sumerian city and state the functions of the different parts f(x) = -4/3 (-x+5)^3 +12 A forest fire leaves behind an area of grass burned in an expanding circularpattern. If the radius of the circle of burning grass is increasing with timeaccording to the formula r(t) = 2t + 1, express the area burned as a function oftime. A dolphin swims at a depth of 13.5 meters below sea level while a seagull flies 10 meters above sea level. How far apart are they? Write and evaluate an expression to answer this question. Find the first 5 terms of the sequence given the nth term. 1. an=2n^2+5n-102. an=3n+4/n^2+5 Describe how proteins are made, packaged, and transported within the cell????????????? If anyone could answer this kind of fast that would be great; this is due tomorrow whats the explicit equation for r=3; f ( 1 ) = 1 I need help i dont understand this How did the capture of the forts at Vincennes, Kaskaskia and Cahokia help end the war? A) It helped the Americans control the Ohio Valley. B) It helped the Americans control the Appalachian Mountains. C) It helped the Americans control the Mississippi Delta. D) It helped the Americans control Virginia. what type of chemical bond is shown in the diagram ? What do janes questions reveal about her? she is amused by mrs. fairfax. she is curious about mr. rochester. she is hoping to marry mr. rochester. she does not trust mrs. fairfaxs opinions. the sides of a triangle are xcm,x+3cm and 10cm. If x is a whole numberof x, find the highest value of x