in eukaryotes, where do transcription regulators bind? choose one: a. only the tata box b. only downstream from genes they control c. only upstream from genes they control d. only the transcription start site e. upstream, downstream, or within the genes they control
Answers
Option (e) is correct. In eukaryotes, transcription regulators bind upstream, downstream, or within the genes they control.
Transcription regulators: These refer to a group of proteins that bind to regulatory sequences within DNA to start or block the transcription of a gene in eukaryotes. These sequences are mostly upstream or downstream of the gene. They are required to establish a temporal and spatial pattern of gene expression. The protein function to alter the DNA conformational state, which either aids or blocks the binding of RNA polymerase to the gene regulatory regions. Transcription regulators bind upstream, downstream, or within the genes, they control in eukaryotes. Transcription regulators are DNA-binding proteins that interact with RNA polymerase and regulate gene transcription. These proteins bind to regulatory DNA sequences near the gene promoter, upstream or downstream of the gene, or within the gene to either activate or repress gene expression.The transcription factors initiate the transcription process by binding to the promoter region, which is present upstream of the gene. Transcription factors also bind to other regulatory regions present in the upstream and downstream regions of the gene that control its expression. Additionally, they interact with the RNA polymerase, which in turn binds to the promoter region and transcribes the gene into RNA. Option (e) is correctTo learn more about transcription regulators Please visit:
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Related Questions
Why is the Petri dish a good place to grow bacteria?
Answers
Answer:
Cheap and great environment/nutrients
Explanation:
Petri Dishes are filled with nutrients and a bacteria specific surface to promote quick and visible grow
The three most common states of matter on Earth are solids, _____, and gases.
A. plasmas
B. states
C. matters
D. liquids
Answers
Answer:
Plasma
Explanation:
She turned right ____ Park Avenue in an attempt to find parking. A) on to. B) onto
Answers
She turned right onto Park Avenue in an attempt to find parking.
Onto is a preposition that indicates movement toward or into a place or position, usually with a verb that expresses motion. It is used to indicate the position of something in contact with or supported by something else and indicates the movement of someone or something to a place or position. Here, the correct preposition to be used is onto because it refers to an action of a person or object towards or into a surface or direction. For example: She climbed onto the table.
In the sentence "She turned right onto Park Avenue in an attempt to find parking," the correct preposition to use is onto because she moved or directed towards Park Avenue.The correct sentence should read:She turned right onto Park Avenue in an attempt to find parking.
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A crocodile-like morphology evolved independently in a group of Triassic reptiles called phytosaurs, and later, after phytosaurs were extinct, in true crocodiles. This is an example of: Sympatric speciation. Iterative evolution Evolutionary drift Genetic drift Lamarckian evolution
Answers
The correct answer is iterative evolution. A crocodile-like morphology evolved independently in a group of Triassic reptiles called phytosaurs, and later, after phytosaurs were extinct, in true crocodiles. This is an example of iterative evolution.
Iterative evolution is the development of similar structures or forms independently over time in separate lineages. This is frequently seen in unrelated lineages of organisms that evolve similar features through convergent evolution. The crocodile-like morphology that evolved independently in Triassic reptiles called phytosaurs and later in true crocodiles is an example of iterative evolution as they evolved independently in separate lineages. The ability of the phytosaurs to thrive in an aquatic environment likely contributed to the development of this morphology, which later allowed true crocodiles to similarly thrive.
Phytosaurs as flying birds:
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Please Help ill mark brainlest
Answers
Answer:the one u have already picked is the answer a monomer is a molecule that can bind together to form something called a polymer which is a group of monomers.
Explanation:
Someone help please!!!!!
Answers
Answer:
i think it is the second one (2) substance B to enter the cell
answer pls
Describe the results from the following base mutations, substitution, insertion, and deletion.
Answers
Answer:
The results from the following base mutations --- substitution, insertion, and deletion are :
base substitution causes no change in the length of DNA. Base insertion causes an increase in the length of the DNA. Base deletion causes a decrease in the length of the DNA.Explanation:
What is base substitution :
In base substitution form of mutation, one nucleotide is simply replaced or transformed into another nucleotide. This may occur due to replication or transcription error, due to mutagenic exposure, etc. For example A to T, G to C, etc.What is base insertion:
Here, one or more nucleotides get added to a DNA, caused due to mutagenic exposure. Also known as addition, this may occur during recombination when the cell undergoes meiotic cell division.What is base deletion :
In base deletion, one or more nucleotides are deleted from the DNA stand, under the effect of mutagens or a wrongly operating recombination machinery.What are the effects of base mutations:
In light of the change in the length of the DNA strand,base substitution causes no change in the length of DNA. Base insertion causes an increase in the length of the DNA. Base deletion causes a decrease in the length of the DNA.All forms of these mutations, unless otherwise repaired by the inbuilt cellular DNA repair mechanisms, leads to the production of DNA strand different from the original DNA, often producing a defective polypeptide or no functional polypeptide. Such changes are often heritable, and may even be lethal for an organism.To know more about base mutations, visit:
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If a cell measures 10 mm when magnified by 100, what is the cell's actual size?
Answers
Answer: The cells actual size is 0.1
Explanation:
If a cell measures 10 mm when magnified a hundred times the the actual size of the cell would be 0.1 mm.
what is the size of a typical cell?The size of a cell depends on the type of the cell that is whether the cell is eukaryotic or prokaryotic, and on the type of organism to which the cell belongs. The prokaryotic cells are usually smaller than the eukaryotic cells. A typical eukaryotic cell ranges from 0.2- 2 micrometers in size.
The eukaryotic cells have a larger size ranging from 10-100 micrometers. They are about ten times larger in size than prokaryotic cells. Most plant cells are 10-100 micrometers across, while animal cells typically measure between 10 and 30 micrometers.
Animals, fungi, plants, and protists all have eukaryotic cells. Most of them have a nucleus, an organelle encased in a membrane known as the nuclear envelope, where DNA is kept.
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Which method is the typical first step when scientists communicate their scientific results?
Answers
why does it make sense that our host defenses are primed to respond to lipopolysaccharide and peptidoglycan?
Answers
Our host defenses are primed to respond to lipopolysaccharide and peptidoglycan as they are unique to Bacterial cells( Pathogens).
What are Pathogens?
A pathogen is an organism that causes disease in its host, and the severity of the disease symptoms is referred to as virulence. Pathogens are taxonomically diverse, including viruses, bacteria, and unicellular and multicellular eukaryotes.
Pathogens, including bacteria, affect every living organism and are targeted by specialized viruses known as phages.
Pathogens are classified into two types: facultative pathogens and obligate pathogens, based on how closely their life cycle is linked to their host.
Facultative pathogens are organisms that can reproduce in a variety of environments, including the host. Facultative pathogens are primarily environmental bacteria and fungi that can cause infection on rare occasions.
Obligate pathogens need a host to complete their life cycle. All viruses are obligate pathogens because their reproduction is dependent on the cellular machinery of their host. Obligate pathogens include bacteria, which cause tuberculosis and syphilis, as well as protozoans (which cause malaria) and macro-parasites.
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Describe how the skin cells neurons muscle cells and blood cells you have observed relate to the functions of skin nerve muscle and blood tissue
Answers
The cells observed - skin cells, neurons, muscle cells and blood cells - are important parts of their respective tissues and support their unique roles.
1. The skin cells, the outermost layer of the skin, protect against environmental elements and regulate temperature. Through specific receptors, they aid in sensory awareness and create a barrier that prevents viruses from entering the body.
2. The nervous system cannot function properly without neurons. They enable electrical signal transmission, allowing the brain and various parts of the body to communicate.
3. Movement and support are made possible by muscle cells. While smooth muscle cells control involuntary movement of organs and structures, skeletal muscle cells enable intentional movements. Cardiac muscle cells allow the heart to contract, maintaining blood flow throughout the body.
4. Red blood cells, white blood cells and platelets are among the blood cells that are essential for many processes. White blood cells fight germs and contribute to immunity, while platelets help the blood clot, preventing excessive bleeding. Red blood cells take up oxygen and remove carbon dioxide.
Altogether, these cells support the normal biological activities and specific functions of skin, neuron, muscle, and blood tissues, helping them to fulfill their responsibilities for preserving homeostasis.
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1 point
What form is DNA in when it needs to be divided (but cannot be used to
make proteins)? *
Chromatin
Chromosome
Gene
Histone Protein
Answers
which nutrients often limit the distribution and abundance of photosynthetic organisms? select all that apply.
Answers
For nutrients like nitrogen or phosphorus are frequently a source of restriction for photosynthetic organisms (like kelp or phytoplankton).
While phosphorus (P) limitation typically occurs in tropical locations, nitrogen (N) is generally regarded as the primary limiting component in temperate regions. However, nutrient limitation in subtropical regions is little known.
Nitrogen (N), phosphorus (P), and potassium are the three main limiting nutrients in crop yield (K). These three nutrients are frequently added as parts of commercial fertiliser or manure to agricultural areas. You need to understand that the three limiting parameters for photosynthesis are light intensity, CO2 concentration, and temperature. Although a scarcity of water can slow down photosynthesis, other plant functions are typically affected before photosynthesis
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Burning fossil fuels has changed the atmosphere by
producing a hole in the ozone.
increasing the concentration of carbon dioxide.
increasing the concentration of ozone in the atmosphere.
reducing the CFC's in the atmosphere.
Answers
Answer:
increasing the concentration of carbon dioxide.
Explanation: Burning of fossil fuels, like gasoline, causes atmospheric change by increasing the concentration of carbon dioxide.
Please help me answer this
Answers
Answer:
lipids
Explanation:
lipids also can contain sulphur (C, H, O, N, S, P)
when charlie came home from school he turned on the garden hose that had been sitting in the sun all day. the water that came out of the hose was so hot, he could hardly touch it. what happened to the water molecules that made the water so hot?
the solar energy hitting the hose made the water molecules move faster
Answers
Name and describe the four types of aquatic organisms
Answers
Benthos
Plankton
Protozoa
can someone please answer this for me?
Answers
Answer:
50 %
Explanation:
Using a punnets square the four possible crosses are Hh, Hh, hh, and hh. This means there is a 50% chance the child has hh or hemophilia
Which activity uses ATP to lower body temperature?
shivering
panting
sheltering in the shade
fluffing up feathers
I think its C
Answers
Answer:
The correct answer is panting, I just took the test and got it correct.
Explanation:
Hope this helps :)
How does a neuron go from a negative to
positive charge?
A. The spinal cord expands outward, and floods the cell with positive
copper ions.
B. A negatively charged stimulus activates the action potential,
opening sodium channels.
C. The fight or flight instinct is activated and floods the cell with
positive barium ions.
D. The nucleus bonds chemically with another nucleus leaving only
positively charged ions behind.
Answers
Answer:
The answer is B, by opening sodium channels.
describe the interaction between the cardiovascular system and the respiratory system. make sure to include the words hemoglobin and carbon dioxide as well as relevant anatomy you have learned in this lesson.
Answers
The respiratory system is in charge of supplying oxygen to the blood and removing carbon dioxide.
When the heart receives blood that is low in oxygen and high in carbon dioxide, it pumps it to the lungs via the pulmonary arteries. When the lungs expand and take in fresh air from the environment, oxygen is transferred into the low-oxygen blood, which then sends some of its carbon dioxide back into the lungs. Now that this blood contains fresh oxygen and hemoglobin, it returns to the heart, and the heart distributes it throughout the body.
In such a way interaction between the cardiovascular system and the respiratory system
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Explain how you can determine the gibbs free energy (δgo) of the dissolution of urea. t/f
Answers
The Gibbs free energy (ΔG°) of the dissolution of urea can be determined experimentally by measuring the equilibrium constant (K_eq) of the reaction and using the equation ΔG° = -RTlnK_eq.
To measure K_eq, a known quantity of urea is added to water, and the resulting concentration of urea in solution is measured. From this, the concentration of urea in the solid phase can be calculated using the solubility product (K_sp) of urea. The equilibrium constant is then calculated as K_eq = [urea]² / [urea]_solid.
Once K_eq is determined, the Gibbs free energy of dissolution can be calculated using the equation ΔG° = -RTlnK_eq. This value can be used to predict the spontaneity of the reaction and to determine the conditions under which the reaction will occur.
It is important to note that the value of ΔG° will depend on the conditions under which the reaction is carried out, including temperature, pressure, and concentration of reactants and products. Therefore, it is important to measure ΔG° under standardized conditions in order to compare the thermodynamic properties of different reactions.
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Which membrane type allows some things through and restricts the passage of others?.
Answers
How do the mass and the density of the mantle compare with the mass and density of Earth’s core?(1 point)
The mantle’s mass is less than the core’s mass, but with greater density.
The mantle’s mass and its density are less than that of the core.
The mantle’s mass is greater than the core’s mass, but with less density.
The mantle’s mass and its density are greater than that of the core.
Answers
The comparison between mass and density of mental in comparison to mass and density of earths core is the mental mass is greater than the cores mass, but with less density .
Generally crust is considered as silicate solid ,mental consists of molten viscous rock . Mental is denser than the crust as it contain more iron , magnesium and calcium then the crust . they are also hotter and denser because of the temperature and pressure inside the earth .
The density will decrease with each layer as we move outward from the inner core. This occurs because of the gravity . Denser the substance is it will be pulled more closer to the center of earth .
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Answer:
the mantel mass is greater than the cores mass, with less density
Which effects would many organisms likely experience if global warming occours check all that apply
Disrupted food webs
Increased competition
Increased number of glaciers
Disrupted life cycle events
Forced relocation
Answers
Answer:
A. disrupted food webs B. increased competition D. disrupted life-cycle events E. forced relocation
Which wave, A or B, has lower energy?
A, because it has a higher amplitude
B, because it has a higher amplitude
A, because it has a lower amplitude
B, because it has a lower amplitude
answer is C for those who saw the other question
Answers
Answer:
A, because it has a lower amplitude
Explanation:
Energy of wave is represented in the formula:
e = 1/2kA^2
where:
---> k is constant
---> a is amplitude
hence, the increase or decrease of energy depends on the amplitude of the wave
if the amplitude is less, than the energy is also less.
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independent vs dependent ex.
thanks
Turn off the Significant Earthquakes layer and turn on the Significant Volcanic Eruptions layer. Observe the similarities between the locations of volcanoes and the plate boundaries.
More than half of the world’s volcanoes that are above sea level are located in the Ring of Fire. The Ring of Fire surrounds the Pacific plate, as shown on the map.
section of a world map highlighting the Ring of Fire
Zoom out as far as possible and locate the Ring of Fire on your map. Compare the location of the volcanoes in the Ring of Fire with the nearby plate boundaries. Using the plate boundaries legend, which type of boundary is most prevalent at the location of these volcanoes?
Answers
It is correct to state that "The Divergent/Transform Plate boundary" is the most common kind of barrier or boundary at these volcanoes called Ring of Fire. Please see the accompanying maps of the ring of fire.
What is a Transform Plate boundary?A transform fault, also known as a transform boundary, is a fault along a plate boundary with mostly horizontal motion. It suddenly stops when it joins to another plate boundary, which might be another transform, a spreading ridge, or a subduction zone.
The Ring of Fire, also known as the Circum-Pacific Belt, is a track that circles the Pacific Ocean and is defined by active volcanoes and earthquakes. The Ring of Fire contains the majority of the Earth's volcanoes and earthquakes.
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When a cell allows molecules to go in and out of the cell membrane, this is an
example of what? *
Answers
The size of a food chain can vary, but the number of levels that a food chain can reach is limited. Why does this limit exist ?
Answers
Answer:
Energy is lost at each trophic level.
Explanation:
hope this helps have a good rest of your day :) ❤
Energy is lost at each trophic level.
What is food chain ?
Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.
What is tropic level?
Trophic level is defined as the position of an organism in the food chain and ranges from a value of 1 for primary producers to 5 for marine mammals and humans.
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The failure of the brain to work properly would most directly affect the what?
Answers
Answer:
The nervous system
It involves the brain