why does the mrna that leaves the nucleus have far fewer nucleotides than the initial rna product that is made by the transcription of a gene?
Answers
The initial RNA product,undergoes a process called mRNA processing. This process includes the removal of non-coding regions and the joining together of coding regions. As a result, the mRNA that leaves the nucleus is much shorter in length compared to the initial RNA product.
During transcription, the RNA polymerase enzyme synthesizes an RNA molecule that is an exact copy of the gene's DNA sequence, including both coding and non-coding regions. The non-coding regions, called introns, do not contain instructions for protein synthesis and need to be removed. This process is called splicing and occurs during mRNA processing.
The introns are spliced out, and the remaining exons are joined together to form the mature mRNA. This removal of introns significantly reduces the length of the mRNA, resulting in a shorter molecule compared to the initial RNA product. The final mRNA, containing only the coding regions, can then be transported out of the nucleus and used as a template for protein synthesis.
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Related Questions
In the Rainfall and Bird Beaks Gizmos, how did the bird beak depth change in drought conditions?
A. Beaks got longer because the only birds that survived had larger beaks that could crack the hard seeds
B. No change
C. Beaks got shorter because the birds had to scrape more to find seeds.
Answers
Answer:
I believe it would be option a, beaks got longer because the only birds that survived had larger beaks that could crack the hard seeds
Explanation:
In years of extreme drought, Galápagos plants don’t produce new seeds. The small, delicate seeds get eaten up quickly, leaving behind only the largest, toughest seeds.
What is the best way to deal with biodiversity hotspots?
Answers
What are the differences between internal receptors and cell-surface receptors?
A. Intemal receptors bind to ligands that are hydrophobic, and the ligand-receptor complex directly enters the nucleus, initiating transcription and translation Cell-surface
receptors bind to hydrophilic ligands and initiate a signaling cascade that indirectly influences the making of a functional protein
B. Internal receptors bind to ligands that are hydrophilic, and ligand-receptor complex directly enters the nucleus, initiating transcription and translation. Cell-surface
receptors bind to hydrophobic ligands and initiate a signaling cascade that indirectly influences the making of a functional protein
C. Internal receptors bind to ligands that are hydrophobic and initiate the signaling cascade that indirectly influences the making of a functional protein. Cell-surface
receptors bind to hydrophilic ligands, and a ligand-receptor complex directly enters the nucleus, initiating transcription and translation.
D. Internal receptors are integral membrane proteins that bind to hydrophobic ligands, initiating a signaling cascade, which indirectly influences the making of a functional
protein. Cell-surface receptors bind to hydrophilic ligands, and the ligand-receptor complex directly enters the nucleus, initiating transcription and translation
Answers
There are many differences between internal and cell-surface receptors. The following are some of the differences between the Location of the receptor Internal receptors are located within the cytoplasm or the nucleus of the cell.
Type of signalling molecule Internal receptors bind to hydrophobic molecules, whereas cell-surface receptors bind to hydrophilic signalling molecules.
They initiate a signalling cascade, which indirectly influences the making of a functional protein.4. Intracellular versus extracellular pathways.
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Which of the following describes a method of energy conservation?
O A. Driving a car with low fuel efficiency less often than before
O B. Switching to an appliance that has lower energy efficiency
O C. Driving a car with high fuel efficiency more often than before
XOD. Removing the insulation from a home before using the heater in winter
Answers
Label them plzzz!!!!!
Answers
Answer:
1. Mitochondria - you can tell based on the double membrane and the folding of the cristae shown in yellow
2. Centrosome- the centrosome is made up of two cylindrical centrioles.
3. Lysosome - lysosomes are round vesicles (think like bubbles) that digest waste products
4. Cytoplasm - the fluid-filled space inside the cell is the cytoplasm
5. Nucleosome - the "nucleus inside the nucleus" is called the nucleosome. It is where ribosomal RNA is made. It is not surrounded by a membrane
6. Nucleus - the large sphere-shaped organelle that holds the genetic material
7. DNA - the genetic material found inside the nucleus
8. Cilia - hair-like structures that help in locomotion
9. Rough endoplasmic reticulum - a series of folded membranes with ribosomes attached to the surface used in protein synthesis
10. Smooth endoplasmic reticulum - a series of folded membranes without ribosomes, giving a smooth appearance. Also used in protein synthesis, folding and modification.
11. Cytoskeleton - a series of filaments that helps the cell control its internal structure
12. Vesicles - vesicles containing proteins and other organic molecules budding off the endoplasmic reticulum
13. Ribosomes - small round structures that represent cellular protein synthesis machines. Can be free floating or attached to the ER
14. Golgi apparatus - A series of flattened pouches that sorts, packages and transports proteins from the ER
15. Cell membrane - defines the boundary of the cell and controls the entry and exit of different substances
3. Use the list below to write the correct term for each definition below.
analogous system habitat fragmentation
scale model computer mode
pollutants technology
greenhouse gases runoff
a. chemicals emitted into the atmosphere at add to the overall increase in earth's temperatures
b. when roads cross a habitat; they expose animals within the habitat to death due to encounters with vehicles
c. substances which lower the amount of life within a system
d. the knowledge and tools we use to do difficult tasks
e. a research model that studies objects similar in function or design
f. water that travels over the surface of the land during and after rain
g. a miniaturized but proportional version of an object mimic or predict the behavior of real objects or systems
h. a program that allows a computer to quickly and with detail
Answers
b. habitat fragmentation
c. pollutants
d. technology
e. analogous system
f. runoff
g. scale model
h. computer mode
Precipitation in Jacksonville (1961-1990
True or false
Answers
Answer:
your answer is true I believe
Answer:
True it is the precipation in Jacksonville 1961 to 1990
i need help my teacher maked this hard
Answers
Answer: b-7
h-5
i would say tht d-6 but not sure
a-3
e-8
g-4
c-1
f-2
Explanation: not 100% sure but thts what i would say are the right answers srry if they are wrong
how does movement have an impact on a place
Answers
Answer:
it makes you more woke and open mined
Explanation:
The muscle that stretches in response to contraction of the agonist muscle is called the _____ muscle.
Answers
The muscle that stretches in response to the contraction of the agonist's muscle is called the antagonist's muscle.
When two muscles are antagonistic, one contracts while the other relaxes or lengthens. The muscle that is lengthening or relaxing is referred to as the antagonist, while the muscle that is contracting is referred to as the agonist.
An antagonist is a muscle that works in the opposite direction from the prime mover. In order for muscles to function properly, they must perform two crucial tasks: (1) maintaining body or limb position, such as holding an arm out or standing straight; and (2) controlling rapid movement, such as shadow boxing without connecting with a punch or the ability to restrain the motion of a limb.
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The intracellular kinase that is directly responsible for the changes in the strength and speed of cardiac contraction is
Answers
The intracellular kinase that is directly responsible for the changes in the strength and speed of cardiac contraction is Calcium-calmodulin dependent protein kinase II (CaMKII).Calcium-calmodulin dependent protein kinase II (CaMKII) is the intracellular kinase that is directly responsible for the changes in the strength and speed of cardiac contraction.
Calcium/calmodulin-dependent protein kinase II (CaMKII) is a ubiquitous serine/threonine protein kinase involved in the regulation of a wide variety of cellular functions, including neuronal signaling, ion channel regulation, immune responses, and gene transcription.
The CaMKII signaling pathway is essential for proper cardiac contraction and the regulation of cardiac excitation-contraction coupling. The activity of CaMKII is regulated by a variety of factors, including the presence of calcium/calmodulin, autophosphorylation, and interaction with other proteins. Dysregulation of CaMKII activity has been implicated in a number of pathological conditions, including heart failure, arrhythmias, and neurodegenerative diseases.
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Because the Earth’s orbit around the Sun is elliptical, A) Earth is not round in shape, but slightly dented near the poles. B) the distance between the Sun and Earth does not remain the same all the time. C) Earth’s axis is tilted 23.5° away from the perpendicular of its orbital plane. D) the equatorial plane and the orbital plane of Earth do not lie on the same plane.
Answers
Answer:
it’s b
Explanation:
got it right
Please help it’s urgent!!!!
Answers
Answer:
True
Hope this helps :)
exposure to different endocrine disruptors causes effects that are greater than the sum of the individual effects of each endocrine disruptor. this is an example of which type of effect
Answers
This is an example of a synergistic effect.
A synergistic effect occurs when exposure to two or more endocrine disruptors causes effects that are greater than the sum of the individual effects of each endocrine disruptor. This means that the combined effect of the two (or more) disruptors is greater than what would be expected based on the individual effects of each disruptor alone. In other words, the disruptors are acting together in a way that amplifies their effects on the body. This type of effect is of concern because it suggests that even low levels of exposure to multiple disruptors could have significant effects on health.
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8.
What is meant by the term base-pairing? How is base-paring involved in DNA replication?
Answers
Answer: Hydrogen bonds form only between specific base pairs. ase pairing ensures that the complementary strands produced are identical to the original strands.
Explanation:
Questions: Using what you have learned in the lesson and the experiment,
answer the following questions in complete sentences. Do not copy and paste
from any source! Your answers should be in your own words
1. Explain what makes a scientific experiment reliable. Be sure to include at least
three reasons to support your answer. (Review page 4) exploring life lab report
Answers
An experiment is dependable when its repetition yields the same result every time. Peer review is essential in scientific research since it guarantees that there is no misleading data that could lead to incorrect results.
Reliability is a concept used in science to assess the quality of research. The probability that an experiment or result is true, hence preventing and mitigating failures over time, is referred to as reliability.
A trustworthy experiment is one in which successive repetitions provide the same outcome.
Three examples of scientific dependability:
The same as the length of a spider's legThe observation of the same behaviour of bird populations on multiple days and times of day when the byproducts of a given chemical process are the same.An experiment is dependable when its repetition yields the same result every time.
Peer review is essential in science since it guarantees that there are no false dates experiment is repeated two or more times.Peer review is the most extensively utilized method for validating scientific findings. This method (peer review) is critical for advancing scientific understanding.Before a scientific paper is published, independent scientists analyze its originality, dependability, and relevance through peer review.
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Which of the following aspects of water quality is related to changes in weather patterns and circulation of water in the oceans?
Agricultural runoff
Heavy metals in water
Acidification
Salinity and temperature
Answers
Answer:
Sanity and Temperature
Explanation:
They both determine the density of ocean water and density influences the circulation.
Answer: Salinity and temperature
Explanation:
This weekend you are going camping with your closest friends and family. Thankfully, the layers of your skin will help protect you during this adventure. Discuss at least two ways each layer, the epidermis and dermis, may protect you on this excursion.
Answers
Answer:
Epidermis - barrier or protective layer
dermis- thermoregulator or maintain the temperature.
Explanation:
The two main skin layers that are present on the surface of the skin are the epidermis and the dermis layer (below the epidermis). These two layers are helpful in protecting from the excursion.
The epidermis layer is a protecting layer in general that acts as a barrier to protect the inner body from infection and also acts as the waterproofing layer.
The dermis regulates body temperature in an individual if the outer environment is too hot or cold, by sweat in a hot environment as it regulates the sweat glands.
PLEASE ANSWER ASAP!!!!!!!!!!!!!!!!The video shows the movement of oil near the site of the 2010 oil spill. Oil near an oil spill This video shows the shoreline a distance away from this spill. Shoreline away from an oil spill What happens to the oil after it is spilled?
Answers
When oil is spilled, it can have a devastating impact on the environment. The oil spreads over a wide area, coating plants, animals, and shorelines and also enter the food chain, harming both marine life and humans.
What can be damaged from oil spill?There are a number of things that can happen to oil after it is spilled. Some of the oil will evaporate, but most of it will remain in the environment. The oil that remains can be broken down by bacteria, but this process can take many years.
In the meantime, the oil can cause a number of problems. It can smother plants and animals, making it difficult for them to breathe and survive. It can also contaminate water supplies, making them unsafe to drink or use for bathing.
The 2010 oil spill in the Gulf of Mexico is a good example of the damage that oil spills can cause. The spill released over 200 million gallons of oil into the Gulf, and it took years to clean up the mess. The spill had a devastating impact on the environment, killing thousands of birds, fish, and other marine animals. It also caused economic damage to the Gulf Coast region, as tourism and fishing were disrupted.
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1. Identify Study the picture of the cockroach to the
right and identify some characteristics that
you could use to describe a cockroach
Answers
Answer:
you should use the head and the body to describe a cockroach
Explanation:
What structure within the membrane transports large molecules?
Answers
Answer:
A vesicle
Explanation:
Explanation:
With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon molecule that functions as the backbone of these membrane lipids.
PLEASE HELP!!! WILL MARK BRAINLIEST
Answers
Answer:
its f-gamma ray telescope since thats what is being observed
Explanation:
Which two animals are able to generate internal heat to maintain their body temperature in a cold environment?
parrot
snake
frog
dog
crocodile
Reset Next
Answers
Answer:
dog and parrot
Explanation:
Because they are warm blooded animals there for they are able to generate internal heat letting them maintain a constant temp no matter the temperature in their surroundings
Answer:
Parrot and Dog
Hope this helps!
Explanation:
What are the reactants in the following chemical reaction?
C6H12O6 + 6 O2 → 6 CO2 + 6 H2O
A. Carbon dioxide (CO2) and water (H2O)
B. Carbon dioxide (CO2) and oxygen gas (O2)
C. Glucose (C6H12O6) and oxygen gas (O2)
D. Glucose (C6H12O6) and water (H2O)
Answers
Answer:
its (A)
Explanation:
These reactions, which are described in detail in the chapter Cells and Energy, break down the simple sugar glucose (C6H12O6). The process uses oxygen and glucose and results in carbon dioxide (CO2), water (H2O), and usable energy. Oxygen and glucose are the reactants. Hope it helps you.... I tried my best.pls mark me as branliest really need it pls pls pls.describe the primary function of glucose in cells
Answers
Answer:
The primary function of glucose is to serve as a biological fuel source for the body. All cells of the body are capable of using glucose to generate energy. Through a series of complex biochemical reactions, the breakdown
Dogs do not get measles because their cells lack the correct receptor sites for that virus. True False
Answers
Answer:
True
Explanation:
A viroid is a completely developed infectious agent composed of nucleic acid and surrounded by a capsid. Glycoprotein spikes are found on the capsids of all viruses.
The answer is TRUE.
Dogs do not get measles because their cells lack the correct receptor sites for that virus. A viroid is a completely developed infectious agent composed of nucleic acid and surrounded by a capsid. Glycoprotein spikes are found on the capsids of all viruses.
What happens if you get measles?Measles can lead to serious problems if it spreads to other parts of the body, such as the lungs or brain. Problems that can be caused by measles include pneumonia. meningitis.
What is the main cause of measles?Measles is caused by a virus found in the nose and throat of an infected child or adult. When someone with measles coughs, sneezes or talks, infectious droplets spray into the air, where other people can breathe them in. The infectious droplets can hang in the air for about an hour.
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Help As soon as possible !!!
Answers
adding more coils increases the strength between the poles
What does it mean for a genotype to be hetrozygous?
Answers
Answer:
this means the 2 letters in the genotype can not be both lowercase or both uppercase
Explanation:
Therefore a genotype that is heterozygous will always be heterozygous dominant and will look like Bb
The balance between fusion and fission is likely a major determinant of __________ of mitocondria.
a degree of interconnection
b number
c number, length and degree of interconnection
d length
e color
Answers
The balance between fusion and fission is likely a major determinant of c) number, length and degree of interconnection of mitochondria.
The balance between fusion and fission is likely a major determinant of the number, length, and degree of interconnection of mitochondria. Mitochondria undergo constant fission and fusion processes to maintain their shape, size, and distribution within cells.
These processes are crucial for maintaining mitochondrial function and are regulated by various factors. The balance between fusion and fission determines the number and length of mitochondria, as well as their degree of interconnection. Therefore, disruptions in this balance can lead to changes in mitochondrial morphology and function, which may contribute to various diseases.
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a researcher uses the chemical inhibitor to stop atp production in a neuron. what would be one effect of preventing atp production?.
Answers
One effect of preventing ATP production in a neuron is that it would disrupt cellular functions and impair the neuron's ability to transmit signals. ATP (adenosine triphosphate) is the primary energy source for cells, including neurons. It is essential for maintaining the neuron's membrane potential and driving various cellular processes, such as the movement of ions across the membrane, synthesis of neurotransmitters, and maintenance of the cell's structure.
Without ATP, the neuron's ion pumps, which help maintain the electrochemical gradient across the membrane, would fail. This gradient is crucial for the generation of action potentials – the electrical signals that enable communication between neurons. Consequently, the neuron would be unable to propagate these signals, leading to a breakdown in neural communication and overall brain function.
Additionally, the lack of ATP would impair the synthesis and reuptake of neurotransmitters, which are essential for signal transmission between neurons. This would further hinder the neuron's ability to communicate effectively with other neurons, ultimately affecting the brain's ability to process information and control bodily functions.
In summary, preventing ATP production in a neuron would have detrimental effects on its function and communication, leading to disruption of cellular processes, impaired signal transmission, and a potential breakdown in overall brain function.
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