Eukaryotic initiation begins with the assembly of ________________.
A) Preinitiation complex
B) Cap-binding complex
C) Poly-binding complex
D) 48S Initiation complex
E) Translational initiation complex
Answers
The Preinitiation complex is assembled to start eukaryotic initiation.
What functions do the preinitiation complexes have?The preinitiation complex denatures the DNA, places it in the Dna synthesis II enzymatic activity for transcription, and puts RNA polymerase II on gene transcription start sites.
What causes the preinitiation complex to form?A protein complex known as the careful and extensive (PIC) is created in eukaryotic cells prior to the start of transcription. It comprises of Dna specialized role for RNA polymerase.
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Eukaryotic initiation of translation begins with the assembly of the preinitiation complex, which consists of several initiation factors that bind to the small ribosomal subunit, mRNA molecule, and initiator tRNA. This complex is essential for positioning the ribosome at the correct start codon and ensuring the accurate initiation of protein synthesis.
The preinitiation complex formation is initiated by the binding of the cap-binding complex, which recognizes the 5' cap structure of the mRNA and recruits other initiation factors to the mRNA molecule. This is followed by the recruitment of the small ribosomal subunit, which binds to the mRNA molecule at the 5' untranslated region (UTR) and moves along the mRNA until it reaches the start codon.
Once the small ribosomal subunit reaches the start codon, the initiator tRNA (which carries the amino acid methionine) binds to the start codon and forms a complex with the ribosome and initiation factors. This complex is known as the 48S initiation complex, which then recruits the large ribosomal subunit to form the complete ribosome and initiate protein synthesis.
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Related Questions
Many types of plants produce fruit which is eaten by animals. The seeds of these plants are typically undigestible. Which of the following is an advantage for plants having undigestible seeds? It allows seeds to reside in the gut until conditions are appropriate for germination. It ensures that flowers of these plants will be pollinated. It allows the seeds to be dispersed into other areas. It provides a source of nutrients for the germinating seed.
Answers
The advantage for plants having undigestible seeds is that it allows seeds to reside in the gut until conditions are appropriate for germination.
Fruits are a source of nutrition for animals that consume them, and they are also a means of seed distribution for plants that produce them. Many types of plants generate fruit that is consumed by animals; nevertheless, the seeds of such plants are usually indigestible. As a result, the seeds can be dispersed into new areas by animals that eat the fruit.
However, having undigestible seeds provides a distinct benefit to plants: it allows seeds to reside in the gut until conditions are appropriate for germination, which aids in seed growth and germination.
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16. If you do not follow the instructions for mixing, contact time, and the type of surface the
disinfecting product can be used on, you are not complying with federal law.
True
False
Answers
The statement " If you do not follow the instructions for mixing,.....you are not complying with federal law" is TRUE
Disinfecting products are used to prevent and fight against disease causing organisms but they can be harmful to individuals when applied or used wrongly on the wrong surface or if they come in direct contact with human skin for a prolonged period.
The quantity of chemicals and proportion of chemicals used during the production of disinfecting products should follow a particular guideline as established by regulatory authorities. and if not followed would be violating federal law.
Hence we can conclude that the statement If you do not follow the instructions for mixing,..... is TRUE
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Which of the following 'unit name' describes the fully assembled ribosome in bacterial cells? a. 70 {~S} b. 50 {~S} c. 80 {~S} d. 30 {~S}
Answers
The fully assembled ribosome in bacterial cells is described as 70S.
Ribosomes are cellular structures responsible for protein synthesis. They exist in both bacterial and eukaryotic cells, but their sizes differ. Ribosomes are characterized by their sedimentation coefficient, denoted by the letter 'S.'
In bacterial cells, the fully assembled ribosome consists of a large subunit and a small subunit, combining to form a 70S ribosome. The large subunit is approximately 50S, while the small subunit is around 30S. When these two subunits come together, they form the 70S ribosome.
The other options listed, 50S, 80S, and 30S, refer to either the individual subunits or ribosomes found in different organisms. The 80S ribosome, for example, is characteristic of eukaryotic cells rather than bacterial cells.
Therefore, the correct option is option (a)
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Help please!! We have been up for like 2 hours and this is our last questions!!
Answers
Answer:
Similarity: Both exocytosis and endocytosis are in the process of transporting huge molecules, a makeup of different atoms, across the membrane using a vesicle and needs energy.
Difference: Endocytosis brings materials into the cell, while exocytosis takes materials out.
Explanation:
how does the mother’s body cycles through labor rhythmically
Answers
Answer:
One theory about what triggers labor is that the mother's body, specifically her pituitary gland, begins to secrete oxytocin when the baby is fully developed and ready to be born, according to Medical News Today. Oxytocin is the hormone that stimulates contractions, reading the cervix for labor.
Explanation:
This is all I know.
Hope it helps!!~
I need help ASAP
Earth is a sphere with 360 degrees. It rotates upon its axis once every 24 hours. How many degrees will a star have appeared to move in one hour?
Answer choice
0
180
15
23.5
Answers
The degree in which a star appears to move in one hour is 15° and is denoted as option C.
What is Rotation?This is referred to as the circular movement of an object around a central axis such as that of the earth which rotates on its axis once a day.
Since the earth rotation takes about 23 hours and 56 minutes and is at an angle of 361° then we can calculate the per hour by the following below:
Since 24 hours = 1 day
Then 361°/24 = 15° then the number of degrees will a star have appeared to move in one hour.
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Name one example of an enzyme in the human body and it's function.
Answers
Answer:
A couple of examples
amylase: break down starch into sugar.
protease: break down proteins into amino acids.
lipase: break down lipids (fats and oils) into fatty acids and glycerol.
What are the solutions to the human impacts of water?
no link answers please and put this in your own words will give brainliest!
Answers
Answer:
Conserving water, reducing car travel and other reasons for using gasoline, planting with organic gardening materials and not using traditional fertilizers, properly disposing of pharmaceuticals and finding alternatives to harsh soaps and detergents are all ways of decreasing the amount of pollution that ends up in our waterways.
Explanation:
In chickens, Black feathers (B) are dominant over white feathers (b). Complete the Punnett
Square for the following cross:
Mother: BB
Father: bb
What percentage of offspring will be Black?
What percentage of offspring will be White?
Answers
Answer:
(attached Punnett square below)
100% of the offspring will have black feathers
0% of the offspring will have white feathers
Explanation:
All the possible offspring have the genotype Bb, and since B (black) is dominant it will be the phenotype regardless of the presence of a b allele.
Therefore, all the offspring will be black (100%) and since none of the genotypes are bb there's no chance for white feathered chickens (0%)
hope this helps!
What is one thing people can do to reduce the amount of carbon in theatmosphere?A. Plant more trees.OB. Drive longer distances.OC. Use more electricity.OD. Burn more fossil fuels.
Answers
Reduction of carbon in the atmosphere
Plants consume carbon dioxide (CO2) in the process of photosynthesis as a substrate to form their food, i.e, sugars such as glucose, following the formula:
6 CO2 + 6 H2O + light --
to determine
(1) The scientist placed a white laboratory rat in the pparatus
how quickly the rat could find its way out.
that the rat was
(2) From his observations, the scientist could _dcoule
able to learn the correct route in the maze.
(3) If you
your time wisely, you will finish your work more quickly.
(4) The sky was filled with
black clouds.
before he melted it.
(5) In the lab the scientist placed gold in a
(6)
in his white lab coat, the scientist resembled a physician.
(7) The scientist determined that the unknown metal possessed
because it could be hammered into a thin sheet.
(8) The unknown metal did not possess
because it could not be
drawn out into a wire.
(9) For centuries, men have searched for an
that would change
lead to gold.
(10) The
possessions we have on Earth will not retain their value
in Heaven.
(11) Our group, which includes people of many different races, is a
one.
(12) After assembling all the
Answer the question
Answers
Which statement describes the movement of water when a cell shrinks and shrivels due to osmosis?
Water went into the cell because the concentration of water inside the cell was lower than the concentration outside the cell.
Water went out of the cell because the concentration of water inside the cell was higher than the concentration outside the cell.
The cell membrane used energy to move water into the cell through passive transport.
The cell membrane used energy to move water out of the cell through passive transport.
Answers
Answer:
the anser is B pls mark branlest
Explanation:
Explain how scientists used the scientific method to learn more about how dinosaurs became extinct.
Answers
Scientists use radioactive dating, fossils, other geological evidence, biological studies, and studying factors of the ecosystem to learn more about how dinosaurs became extinct.
Who are dinosaurs?Dinosaurs are extinct reptiles. They were very large and both carnivorous and herbivorous. They were present 65 million years ago. Likewise, they become extinct due to unknown reasons, but many hypotheses are made by scientists.
The study of dinosaurs or extinct animals or things is called paleontology. In these scientists discuss, learn and experiment to know more about extinct animals and plants.
Thus, to find out more about how dinosaurs became extinct, scientists employ radioactive dating, fossils, other types of geological evidence, biological investigations, and ecosystem-related issues.
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is
it correct?
If you provide enough stimulation of the presynaptic neurons, spatial and temporal summations of the local potentials are likely to generate an action potential in the postsynaptic neurons.
Answers
Yes, If enough stimulation of the presynaptic neurons is provided, then the spatial and temporal summations of the local potentials are likely to generate an action potential in the postsynaptic neurons.
Temporal stimulation refers to the process where the presynaptic neuron releases neurotransmitters into the synaptic cleft in a series of pulses, producing an accumulation of neurotransmitters that ultimately triggers an action potential in the postsynaptic neuron. It is essential to generate an action potential.
Presynaptic neurons refer to the neuron that releases neurotransmitters into the synaptic cleft. They are located before the synaptic cleft.
An action potential refers to the electrical charge produced in nerve or muscle cells, which signals the cell to depolarize. The action potential is generated when the electrical charge inside the cell becomes more positive than the electrical charge outside the cell, which causes the cell to depolarize and send an electrical signal along the neuron.
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Which of the following is surrounded by two phospholipid bilayers?
a) Ribosomes b) the vesicles
C. CYTOPLASM
D) THE NUCLEOPL
Answers
Answer:
D. THE NUCLEOPLASM.
Explanation:
I think there is a typo in your option but that's fine! I understand.
During the Cretaceous period of Earth’s geological history, eastern Montana was covered with lowland swamps rich in plant life. These plants were buried and slowly decomposed. What did these plants eventually form?
Answers
These Plants eventually produce fossil fuels like coal.
The Cretaceous is the final part of the Mesozoic Era, lasting from 145.5 million years ago to 65.5 million years ago, and is characterized by the demise of the dinosaurs (except birds). The supercontinent Pangea was already rifting apart at the start of the Cretaceous, and by the middle of the period, it had fragmented into several smaller continents. As a result, the two new land masses experienced a significant geographic isolation that led to a divergence in the development of all land-based species. Along with the huge new beaches, the rifting apart also increased the amount of near-shore habitat that was accessible. In addition, as the world's climate cooled, the seasons became more distinct. By the end of the Cretaceous period, oaks, hickories, and magnolias had become widespread in North America, and forests had evolved to resemble modern forests.
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The plants buried during the Cretaceous period and slowly decomposed get transformed into fossil fuels like coal.
The Cretaceous period in early geologic time was known to exist for about 66 million years and is one of the three periods of the mesozoic era.
With the evolution of time and history the mostly expected form to come out from the buried plant remains of eastern Montana is of the fossils and mainly coal.
Due to the presence of the swampy area in the region of eastern Montana peat is the form of coal to be mined out from this region of search.
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how does the burning of fossil fuels contribute to the net increase in atmospheric carbon? group of answer choices carbon released by the burning is not in a form that can be readily absorbed by plants, leaving residual carbon in the atmosphere. photosynthesis is reduced by virtue of increased smoke and haze. carbon released by the burning increases plant growth, producing more carbon for the atmosphere. carbon released by the burning is more easily absorbed in the atmosphere than that produced by natural means. carbon that has been sequestered underground is added to the carbon cycling between the atmosphere and the biosphere.
Answers
Burning fossil fuels contributes to the net increase in atmospheric carbon because (С) Carbon that has been sequestered underground is added to the carbon cycling between the atmosphere and the biosphere.
Fossil fuels are made with the aid of using decomposing flowers and animals. These fuels are observed withinside the Earth's crust and include carbon and hydrogen that may be burned to supply energy. Coal, oil and herbal fueloline are examples of fossil fuels.
Fossil fuels are formed by the decomposition of buried carbon-based organisms that died millions of years ago. They create carbon-rich deposits that are decomposed and burned for energy. They are non-renewable and currently provide about 80% of the world's energy.
These have a lot of carbon in them and when they were buried underground they took the carbon out of the atmosphere.
In summary, burning fossil fuels puts carbon back into the atmosphere, increasing the carbon in the atmosphere.
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PLS I need help with this
Answers
Answer:
The answer is C
Explanation:
prophase is first, meta is second, ano is third and telo is last
Answer:
prophase,metaphase,anaphase,telophase
a threshold stimulus applied to an excitable membrane is one that is just sufficient to a. trigger a graded potential in the membrane b. trigger an action potential in the membrane. c. cause net inward movement of positive charge through the membrane. d. a and c e. b and c
Answers
A threshold stimulus applied to an excitable membrane is one that is just sufficient to: trigger a graded potential or an action potential in the membrane, or to cause net inward movement of positive charge through the membrane. The correct option is A and C
A graded potential is a membrane potential that varies in magnitude depending on the strength of the stimulus. It is a relatively small, local potential that occurs in response to a stimulus but does not generate an action potential.
An action potential is an all-or-nothing response, meaning that the same stimulus strength is always required to trigger the action potential. It is an electrochemical signal that travels along the membrane of a cell, initiating a signal cascade that produces a physiological response.
The net inward movement of positive charge is caused by the opening of specific ion channels in the membrane when stimulated. This allows a greater number of positively charged ions to enter the cell, resulting in a net inward movement of positive charge through the membrane.
In summary, a threshold stimulus applied to an excitable membrane is one that is just sufficient to trigger a graded potential, an action potential, or to cause net inward movement of positive charge through the membrane.
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Dr. Mrs. Brown has Rh+ blood, but her father is Rh-. What must her full blood type genotype be?
Answers
Answer:
Her full blood type genotype is Dd.
Explanation:
Rh (Rhesus) factor is a type of protein found on the outside of red blood cells. It is genetically inherited. An individual that has this protein is Rh-positive, and the one that doesn't is Rh-negative. The Rh-positive gene is dominant, while the Rh-negative gene is recessive. This means that a person must inherit at least one dominant (D) allele from their parents in order to be Rh-positive.
If Dr. Mrs. Brown is Rh-positive, and her father is Rh-negative, her mother must be Rh-positive (DD or Dd), as well. Her father has two recessive alleles (dd), which means that Dr. Mrs. Brown must have one recessive allele. Since she is Rh-positive, she must have one dominant allele. This makes her genotype Dd.
What happens if a gene is not expressed?
A different protein is synthesized.
A protein is destroyed.
A protein is shaped differently.
A protein is not synthesized.
Answers
Answer: a protein is not synthesized .
Explanation: i misread the answer above me and got it wrong so it showed me the correct answer .
Signs and symptoms of a sympathomimetic drug overdose include:A. sedation.B. tachycardia.C. hypotension.D. slurred speech.
Answers
Sedation, tachycardia, hypotension, and slurred speech are warning signs and symptoms of a sympathomimetic medication overdose.
What is symptom?A subjective sign of a sickness or disease, such as pain, nausea, or weakness, is referred to as a symptom. It is any ill-feeling or bodily or mental alteration brought on by a sickness, and it may be accompanied by objective symptoms like aberrant test findings.
When certain substances like cocaine or heroin are consumed in excessive doses, the sympathetic nervous system, which is responsible for these symptoms, is stimulated. Some typical signs of an opioid overdose include confusion, hallucinations, excessive bowel movements, panic, seizures, hypothermia, hypertension, tachycardia, hyperthermia, mydriasis (dilated pupils), nausea, vomiting, urination, diarrhea, muscle fasciculations, weakness, and arrhythmia.
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What is a difference between prokaryotic and eukaryotic cells?
A)Only prokaryotic cells have cytoplasm
B)Only eukaryotic cells have a cell membrane
C)Only prokaryotic cells have genetic material (DNA)
D)Only eukaryotic cells have membrane bound organelles.
Answers
Answer:
Answer is option D
........................................
Answer:
D)Only eukaryotic cells have membrane bound organells
Helppp a b c or d? Helppppppppo
Answers
Answer:
A
Explanation:
ppl were scared that japenece ppl were spies with no evidence
Answer:
b
Explanation:
after the bombing of Pearl Harbor you couldn't trust anyone that was Japanese because there was a chance they were a spy
Maria has been in labor for 12 hours, and her obstetrician thinks that it is time to artificially induce birth. what hormone will the physician inject?
Answers
The physician would inject oxytocin into Maria
If the physician gives Maria the oxytocin, it will allow Maria to lactate easier, make her feel (more) affectionate and selfless, and when it comes to labor, its main function is to bringing on contractions
the dna sequences chart shows a portion of the code for insulin in humans and cows. within this portion of dna, how many codons are different in humans compared to cows?
Answers
To accurately determine the number of codons that are different between humans and cows in the given portion of the DNA sequence for insulin, the specific DNA sequence would need to be provided. Without the actual DNA sequence, it is not possible to determine the exact number of different codons.
However, in general, it is known that there are genetic differences between species, including humans and cows. These genetic differences can lead to variations in the DNA sequence, including differences in codons. Insulin, being a protein, is encoded by a specific DNA sequence that is translated into amino acids using the genetic code.
By comparing the DNA sequences of insulin in humans and cows, it is possible to identify the specific codons that differ between the two species. The number of different codons would depend on the extent of genetic variation in that particular portion of the DNA sequence.
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Almost all rocks sink but a type of rock called pumice floats. Based on the reading, what would you say about the density of this floating rock compared to the density of water
Answers
Answer:
i would say that the rock's density is lower due to the rock having the ability to float, and if the rock was more dense it would have sinked.
Explanation:
well I pretty much just explained it in the answer
vegetation increases slope stability in two ways is called
Answers
The concept of vegetation increasing slope stability in two ways is called the "biotechnical approach." The first way that vegetation helps to stabilize slopes is through its roots, which bind soil particles together and create a cohesive network that reduces erosion and helps to anchor the soil in place.
This can be especially important in areas with high rainfall or other erosive forces, where soil erosion can quickly destabilize a slope.
The second way that vegetation helps to stabilize slopes is through its ability to absorb and transpire water. Plants take up water from the soil and release it through their leaves in a process called transpiration. By doing so, they reduce the amount of water that flows over the surface of the slope, which can help to reduce erosion and prevent mass wasting. Additionally, plants can absorb excess water from the soil, which can help to prevent landslides and other forms of slope failure.
Overall, the biotechnical approach recognizes the important role that vegetation plays in stabilizing slopes, and emphasizes the use of vegetation as a tool for erosion control and slope stabilization in engineering and environmental management practices.
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The first fuel Paul’s body uses is ________________________ from Paul’s last meal, which are stored in his _____________ & his ______________ (technically the bits in his BLOOD are used up before that even). The body turns them into ____________, which is burned in ____________. That fuel lasts Paul about ________________.
Answers
1. The first fuel Paul’s body uses is carbohydrate, which is generated from Paul’s last meal.
2. These carbohydrates are stored in his liver and muscles (technically, the bits in his blood are used up before that even).
3. The body turns the carbohydrates into glucose, which is burned in mitochondria during an aerobic cellular respiration.
4. That fuel lasts Paul about 3 miles, 40 minutes (\(\frac{2}{3} \;hours\)).
A fuel can be defined as the resources that power the body of a living organism such as a human being. Also, the three (3) main types of fuel that power the human body include the following:
OxygenWaterFoodFat is a nutritional element of food and it is beneficial to the body of a living organism because after the body exhausts its carbohydrates, it then uses its own fat as a fuel to power the body.
In this context, the first fuel Paul’s body uses is carbohydrate, which is generated from Paul’s last meal. These carbohydrates are stored in his liver and muscles (technically, the bits of carbohydrates in his blood are used up before the storage).
Furthermore, the body turns the carbohydrates into glucose, which is burned in mitochondria during an aerobic cellular respiration. Also, the fuel would only last Paul for a distance of about 3 miles, 40 minutes (\(\frac{2}{3} \;hours\)).
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What are the advantages and disadvantages of robots?
Answers
Disadvantages: they can have errors and they take away people’s jobs
Answer:
disadvantage
As realistic as they might become, a major disadvantage of robotics is their inability to feel, empathize, and interact as humans do. It's another important factor on this list of pros and cons of robots.
advantage
Safety. Safety is the most obvious advantage of utilizing robotics. ...
Speed. Robots don't get distracted
Consistency. Robots never need to divide their attention between a multitude of things. ...
Explanation: