TRUE/FALSE. individuals with restrictive lung disorders have difficulty inspiring enough air. when the cause is a lung disease, the lung tissue is stiffened
Answers
The statement' individuals with restrictive lung disorders have difficulty inspiring enough air' is true due to decreased lung compliance, which makes it harder for the lungs to expand during inhalation.
Restrictive lung disorders are a group of lung diseases that result in reduced lung compliance, making it harder for the lungs to expand during inhalation.
Compliance refers to the ability of the lungs to stretch and expand in response to changes in pressure, allowing air to flow in and out of the lungs. In individuals with restrictive lung disorders, the lung tissue becomes stiff or scarred, reducing its ability to stretch and expand during inhalation.
This results in reduced lung volume and decreased oxygen exchange, leading to symptoms such as shortness of breath, fatigue, and coughing.
Common causes of restrictive lung disorders include lung diseases like pulmonary fibrosis, sarcoidosis, and interstitial lung disease, as well as other conditions such as scoliosis and neuromuscular disorders.
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Related Questions
all fuels are sources of energy
Answers
Answer:
they are usually considered to be a primary energy source.
Explanation:
Which of the following must be visually studied using electron microscopy? Multiple Choice viruses eukaryotes fungi prokaryotes
Answers
The correct option is: Viruses.
Among the given options, viruses must be visually studied using electron microscopy.Electron microscopy is a microscopy technique that uses electrons to illuminate the sample instead of light. Electrons have shorter wavelengths compared to visible light, which means that they can achieve higher resolution.
Electron microscopy is necessary to study structures that cannot be seen with visible light, such as viruses. Viruses are sub-microscopic infectious agents that require electron microscopy to be seen and studied. Viruses consist of nucleic acid enclosed in a protein coat and may also have a lipid envelope.
The dimensions of viruses are usually in the nanometer (10-9m) range, which is beyond the resolution of light microscopy, making electron microscopy the ideal method for studying these tiny structures.
An electron microscope is a microscope that illuminates with a beam of accelerated electrons. It is a unique kind of microscope with extremely sharp images that can magnify objects down to the nanometer scale. The images are created by carefully directing electrons in a vacuum and are then captured on a phosphorescent screen.
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The remnants of an ancient fire in a cave in Peru showed a decay rate of 4. 5 counts per minute per gram of carbon. Assuming that the decay rate in freshly cut wood is 13. 6 counts per minute per gram of carbon, calculate the age of the remnants. The half life of carbon - 14 is 5730 years
Answers
The carbon isotope C-14 is used in this process. When a living organism dies, the level of carbon-14 starts to decay. In this process, carbon-14 transforms into Nitrogen-14 with a half-life of 5730 years.
The remnants of an ancient fire in a cave in Peru showed a decay rate of 4.5 counts per minute per gram of carbon. Assuming that the decay rate in freshly cut wood is 13.6 counts per minute per gram of carbon,
we can calculate the age of the remnants. Half-life of carbon-14 = 5730 years
Decay rate of C-14 in ancient remnants = 4.5 counts per minute per gram of carbon
Decay rate of C-14 in freshly cut wood = 13.6 counts per minute per gram of carbon
We know that the decay rate of C-14 reduces by half for every 5730 years.
This means that we can use the formula:
Decay rate = (initial rate) x (1/2)^(t/half-life)
where t is the time elapsed, and the half-life of carbon-14 is 5730 years. Let's find the age of the remnants.
We know that:
Decay rate of C-14 in ancient remnants
= (initial rate) x (1/2)^(t/half-life)4.5
= 13.6 x (1/2)^(t/5730) (divide by 13.6 on both sides)0.33
= (1/2)^(t/5730) (take logarithm of both sides)log(0.33)
= (t/5730) x log(1/2)(log 0.33)/(log 1/2)
= t/5730t = 5730 x (log 0.33)/(log 1/2) t
= 12931 years
Therefore, the age of the remnants is approximately 12931 years.
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What is the complementary RNA sequence for the DNA sequence ATA
CGC TAA*
Answers
Which of the following do not match?
Prokaryotic and Anaerobic OR Eukaryotic and Anaerobic0
Answers
Which type of allele is likely to be responsible for an inherited human disease when the symptoms are due to a decrease in the production of a specific protein
Answers
A functional protein's synthesis is frequently reduced as a result of the loss of allele. This pattern relates to how affects an individual's phenotypic. hormones may control how genes are expressed at the molecular level. The phenotypic impact of alleles may be affected by this.
What are the names of the alleles you inherit?The genotype of an organism inside a single organism is the particular set of alleles for that gene, and (as was already noted) the physical characteristic linked to that genotype is referred to as the organism's phenotype.
A gene that is inherited only from one autosome is said to be autosomal. It follows that both men and women have an equal chance of inheriting the gene.
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The smaller cell produced by oogenesis meiosis i, called the first polar body, is essentially a packet of discarded nuclear material.
Answers
The statement "The smaller cell produced by oogenesis meiosis is called the first polar body, is essentially a packet of discarded nuclear material.". is a true statement. This is further explained below.
What is oogenesis?Generally, Oogenesis is a process that takes place in the ovary's outermost layer, where the initial meiotic division commences in a primary oocyte.
In conclusion, oogenesis meiosis is essentially a packet of discarded nuclear material.
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Mendel’s law of independent assortment states that alleles of genes on nonhomologous chromosomes assort independently during gamete formation. Which phase of meiosis determines the combinations of alleles of different genes that end up in the daughter cells?.
Answers
The mix of alleles from various genes that end up in the daughter cells is determined by the anaphase 1 of meiosis 1.
Chromosome segregation during meiosis is mirrored in the segregation of alleles. During anaphase, 1 of meiosis 1 homologous chromosomal separation leads to allele segregation.
Chromosomes display autonomous assortment when they are randomly split into daughter cells during meiosis.
What takes place in anaphase 1?During meiosis I, sister chromatids remain together as homologous chromosomes separate. To appreciate the development of germ cells, it is crucial to comprehend how this odd chromosomal segregation behavior came to be. Here, we show that the pattern of chromosomal segregation during meiosis I is determined by the microtubule-kinetochore interactions that are inhibited during prophase I and the premeiotic S phase.
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The majority of a cell's interior is made
up of...
O mitochondria
O cytoplasm
Onuclei (that's plural for nucleus)
Oribosomes
Answers
Answer:
Nucleus
Explanation:
Directions: Answer the following questions in your own words using complete sentences. Do not copy and paste from the lesson or the internet.
1. Discuss the following terms:
asexual reproduction
nuclear membrane
reproduction
tetrad
gene
chromosome
nucleus
daughter cell
parent cell
2. Identify the following:
a. the original cell that produces new cells through mitosis or meiosis
b. a group of four chromosomes that takes part in meiosis
c. the sex cell produced by the male
d. a unit of DNA that determines a specific hereditary trait in an organism; comes in pairs
e. a twisted and coiled strand of DNA within the nucleus that carries the codes for reproductive traits such as eye and hair color
f. the process through which organisms produce offspring; creation of a new individual
g. the creation of a new cell or organism identical to the parent; does not involve the union of sex cells
h. the cell part that holds the chromosomes and DNA that controls all cell activities
i. one of the two cells created when a parent cell divides through mitosis
j. a thin wall or covering that surrounds the nucleus of the cell
3. Identify the following:
a. the sex cell produced by the female
b. cell division in which two cells, each with the same number of chromosomes identical to the parent, are produced from one cell
c. cell division that results in the formation of four sex cells, each of which has half the number of chromosomes as the parent cell
d. a cell part that organizes the web along which chromosomes move during cell reproduction
e. a jellylike, living substance inside the cell membrane but outside the nucleus
f. the creation of a new organism through the union of an egg and a sperm
g. the union of a male sex cell (a sperm) and a female sex cell (an egg)
h. the strands of material that determine traits of daughter cells (deoxyribonucleic acid)
i. refers to any trait or material that determines characteristics passed on from the parent(s)
j. a group of molecules used as both building materials for cell growth and as a control factor for cell behavior
4. Complete the following paragraph by adding the correct terms.
Cells can make new cells. One cell can (a) ____________ into two new cells. This is called (b)__________________. The process of cell division goes through various states. First, the cell nucleus (c)________________ into two. A new cell surface membrane then (d)____________ the cell divides. The two new cells are called (e)_______________ and they are small. They will grow and become larger. They grow by getting (f)______________ from the food that is eaten. Once they grow to full size they can also (g)_____________. If cells divide more quickly than they should, or divide in the wrong way, (h)_____________ can develop.
5. Why is RNA necessary to act as a messenger? Why can't the code be taken directly from the DNA? How do some cells become brain cells and others become skin cells, when the DNA in ALL the cells is exactly the same? In other words, if the instructions are exactly the same, how does one cell become a brain cell and another a skin cell?
Answers
Answer:
Explanation:
Asexual reproduction: Reproduction that involves only one parent and produces offspring that are identical to the parent.
Nuclear membrane: A double-layered membrane that surrounds the nucleus and separates it from the cytoplasm.
Reproduction: The process by which organisms produce offspring.
Tetrad: A group of four homologous chromosomes that come together during meiosis.
Gene: A unit of heredity that determines a specific trait in an organism.
Chromosome: A structure made up of DNA and protein that carries genetic information.
Nucleus: A membrane-bound organelle in eukaryotic cells that contains genetic information.
Daughter cell: One of the two cells produced by the division of a parent cell.
Parent cell: The original cell that undergoes cell division to produce daughter cells.
a. Parent cell
b. Tetrad
c. Sperm
d. Gene
e. Chromosome
f. Reproduction
g. Asexual reproduction
h. Nucleus
i. Daughter cell
j. Nuclear membrane
a. Egg
b. Mitosis
c. Meiosis
d. Spindle
e. Cytoplasm
f. Sexual reproduction
g. Fertilization
h. DNA
i. Genetics
j. Proteins
a. divide
b. cell division
c. divides
d. forms
e. daughter cells
f. nutrients
g. divide
h. cancer
RNA is necessary to act as a messenger because it is able to leave the nucleus and travel to the ribosomes in the cytoplasm, where it can direct the synthesis of proteins. DNA cannot leave the nucleus, so it needs RNA to act as a messenger between the nucleus and the ribosomes.
Although all cells in an organism contain the same DNA, different cells have different functions because different genes are expressed in different cells. The genes that are turned on and off in a cell determine its function. For example, brain cells and skin cells have different functions because different sets of genes are active in each cell type. The regulation of gene expression is controlled by various factors, including the cell's environment and developmental signals.
what experimental evidence provided the initial insights into the compositions of codons encoding specific amino acids? select the three correct answers. what experimental evidence provided the initial insights into the compositions of codons encoding specific amino acids?select the three correct answers. electron microscopy studies of resulting polypeptides studies on homopolymer rna s introduced into an in vitro system studies on heteropolymer rna introduced into an in vivo system studies on homopolymer rna s introduced into an in vivo system assays of the relative amino acid composition of resulting polypeptides studies on heteropolymer rna s introduced into an in vitro system
Answers
Studies on homopolymer RNAs, heteropolymer RNAs, and assays of the relative amino acid composition of resulting polypeptides are the experimental evidence in its terms: Option B, C, and E.
Studies on homopolymer RNAs introduced into an in vitro system, studies on heteropolymer RNAs introduced into an in vivo system, and assays of the relative amino acid composition of resulting polypeptides are the experimental evidence that first revealed the compositions of codons encoding specific amino acids.
They created proteins with multiple types of amino acids using synthetic RNAs that randomly combined two bases at various ratios. From these proteins, they were able to determine that the genetic code is triplet and to restrict the codon options for further amino acids. By 1966, Nirenberg's team had successfully deciphered every codon for an amino acid.
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Correct question is:
What experimental evidence provided the initial insights into the compositions of codons encoding specific amino acids? select the three correct answers.
electron microscopy studies of resulting polypeptides
studies on homopolymer rna s introduced into an in vitro system
studies on heteropolymer rna introduced into an in vivo system
studies on homopolymer rna s introduced into an in vivo system
assays of the relative amino acid composition of resulting polypeptides
studies on heteropolymer rna s introduced into an in vitro system
PLEASE HELP ILL GIVE BRAINIEST
Answers
Answer:
Decomposers (Figure below) get nutrients and energy by breaking down dead organisms and animal wastes. Through this process, decomposers release nutrients, such as carbon and nitrogen, back into the environment. These nutrients are recycled back into the ecosystem so that the producers can use them.
Explanation:
What are some synthetic stocks for a Mosin–Nagant?
Answers
Answer:
ATI ProMag Archangel
Explanation:
The ATI stork is very kind of terrible
By how much did the three organisms investigated in this activity grow over the course ten weeks when the average water temperature was 20°C? (You may wish to save the graphs of data to your computer and paste them below to help answer this question
Answers
Answer: By how much did the three organisms investigated in this activity grow over the course often weeks when the average water temperature was 20°
Answer:
The graph of growth moves upward and downward due to temperature of the medium.
That organism which grow best in the temperature range from 15°C to 25°C, the graph moves in the upward direction due to the presence of optimum temperature for the growth of that organism.
The organism which grow best in the temperature range from 5°C to 15°C, the graph moves in the downward direction because the water temperature is not suitable for the growth of that organism.
The organism which grow best in the temperature range from 25°C to 35°C, the graph also moves in the downward direction because the water temperature is not good for its growth so we can conclude that the growth rate increases and decreases due to temperature of water.
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Which of these is an example of how the ocean influences climate?
It causes long droughts and rainfalls in coastal areas.
It causes temperatures near shorelines to be less variable.
It reduces the amount of rainfall near lakes.
It makes the weather warmer near the poles than expected.
Answers
Answer:
It causes temperatures near shorelines to be less variable.
Explanation:
got it right vlacs!
“The rest is lost largely through metabolic processes as heat.”
How can I word that sentence differently?
pls help
Answers
Answer:
The rest is lost generally through metabolic cycles as warmth.
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If a deer population increases what might happened to the wolf population
Answers
Answer:
Yes
Explanation:
Because the wolf's will die
Which descriptions accurately characterize rectal temperature measurement? Check all that apply.
It most closely matches the core body temperature.
It can be used for uncooperative patients.
It can be affected by recent consumption of food or drink.
It gives a reading lower than the actual core body temperature.
It can be used for infants.
Answers
The descriptions that accurately characterize rectal temperature measurement are as follows:
It can be used for uncooperative patients.It can be affected by recent consumption of food or drink.It can be used for infants.Thus, the correct options for this question are B, C, and E.
What do you mean by Rectal temperature?The rectal temperature may be defined as a type of process that significantly deals with measuring a person's temperature by inserting a thermometer into the rectum via the anus.
The rectal temperature is one of the most accurate ways in order to determine whether a child has a fever or not. This is because this temperature is usually taken in the rectum and is the closest way to finding the body's true temperature. Rectal temperatures run higher than those taken in the mouth or armpit (axilla) because the rectum is warmer.
Therefore, the descriptions that accurately characterize rectal temperature measurement are well-mentioned above.
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Part C Part complete
Predict polypeptides produced when (UUA)n is used with an E. coli system.
Select all that apply.
Answers
It is important to note that the actual polypeptides produced will depend on the specific context of the mRNA sequence, the ribosomes and tRNA molecules available, and other factors affecting translation efficiency and accuracy.
The (UUA)n codon codes for the amino acid leucine. When used with an E. coli system, the polypeptides that may be produced depend on the surrounding codons and the specific mRNA and ribosome used for translation. However, some possible polypeptides that may be produced include:
A polypeptide consisting entirely of leucine residues, if the mRNA contains only (UUA)n codons and is translated by ribosomes with no errors or premature termination.
A polypeptide with multiple leucine residues interspersed with other amino acids, if the mRNA contains (UUA)n codons along with other codons specifying different amino acids.
A truncated polypeptide if premature termination occurs due to an error in translation or a nonsense mutation in the mRNA.
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Identify the ocular lens of the compound light microscope.
Answers
Answer:
Part A
Explanation:
FILL THE BLANK. 1. Nebula (cloud of gas and dust) Red Grant White Dwarf The above stages of evolution are for a Select one: O Low-mass star Ob. Normal-mass star OG High-mass star Od. Intermediate-mass star Through the use of a astronomers have determined that light from most stars is which produces evidence that the universe is ____ The statement above is completed correctly by the information in row Select one: O a radio telescope; blue-shifted; contracting. O b. radio telescope; red-shifted; expanding Oc. spectroscope; blue-shifted; contracting d. spectroscope; red-shifted; expanding Clear my choice
Answers
The above stages of evolution are for a high-mass star.
Through the use of a spectroscope, astronomers have determined that light from most stars is red-shifted, which produces evidence that the universe is expanding.
Explanation to the above given short answers are written below,
The stages of evolution mentioned in the question, namely nebula, red giant, and white dwarf, are characteristic of high-mass stars. Low-mass stars do not go through the red giant phase, and intermediate-mass stars have different evolutionary paths.
A spectroscope is an instrument used to analyze the light emitted or absorbed by celestial objects. When astronomers observe the light from most stars, they observe a redshift, meaning the light is shifted towards longer wavelengths.
This redshift is a result of the expansion of the universe, where galaxies and celestial objects are moving away from each other. The redshift provides evidence for the expanding universe and is a fundamental concept in cosmology.
Therefore, the correct completion of the statement is: Through the use of a spectroscope; red-shifted; expanding.
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100 points I need help please!!!!!!
Answers
Answer:
1. melting
2. freezing
3. sublimation
4. deposition
5. condensation
6. vaporization
Answer:
yes
Explanation:
1. Explain five challenges involved in mobilizing deposits from
the poor.
Answers
Mobilizing deposits from the poor poses several challenges, including lack of documentation, limited financial literacy, inadequate access to banking services, informal financial practices, and mistrust in formal financial institutions.
Mobilizing deposits from the poor can be challenging due to various factors.
First, many individuals in impoverished communities may lack proper documentation such as identification cards or proof of address, which are often required by formal financial institutions to open accounts. This can hinder their ability to access banking services and deposit their savings.
Second, there is often limited financial literacy among the poor, making it difficult for them to understand the benefits and processes of depositing money in formal institutions.
Third, in many underserved areas, there is a lack of accessible banking services, with banks being located far away or having limited outreach programs, making it inconvenient for the poor to deposit their money.
Fourth, informal financial practices, such as savings groups or rotating savings and credit associations, may be prevalent in these communities, leading individuals to rely on these systems instead of formal banking channels.
Finally, there may be a general mistrust or skepticism towards formal financial institutions due to past experiences or perceptions of exclusion, making it challenging to encourage deposit mobilization among the poor. Overcoming these challenges requires innovative approaches, such as mobile banking solutions, financial education programs, and building trust through community engagement.
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What is a macromolecule?
Answers
Answer:
is a very large molecule such as protein. They are composed of thousands covalently bonded atomsDaughter cells produced when cells undergo mitosis are genetically _______, and daughter cells produced when cells undergo meiosis are genetically _______.
Answers
Answer:
Daughter cells produced when cells undergo mitosis are genetically identical, and daughter cells produced when cells undergo meiosis are genetically diverse.
Explanation:
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5. what are the major steps that occur during photosynthesis? what happens in each step (summarize briefly the key point(s))?
Answers
Photosynthesis is a complex process that can be summarized in two key steps: the light-dependent reactions and the light-independent reactions (also known as the Calvin cycle).
In the light-dependent reactions, light energy is converted into chemical energy in the form of ATP and NADPH. In the light-independent reactions, ATP and NADPH are used to convert carbon dioxide into glucose.
During the light-dependent reactions, light energy is absorbed by chlorophyll and other pigments in the chloroplasts of plant cells. This energy is used to split water molecules, releasing oxygen as a byproduct.
The energy from the absorbed light is then used to convert ADP (adenosine diphosphate) into ATP (adenosine triphosphate) and NADP+ (nicotinamide adenine dinucleotide phosphate) into NADPH. These energy-rich molecules, ATP and NADPH, are essential for the next step.
In the light-independent reactions, also known as the Calvin cycle, carbon dioxide enters the chloroplasts and combines with a five-carbon compound called RuBP (ribulose-1,5-bisphosphate). This process is facilitated by the enzyme RuBisCO (ribulose-1,5-bisphosphate carboxylase/oxygenase).
The resulting unstable six-carbon molecule quickly breaks down into two molecules of a three-carbon compound called PGA (phosphoglycerate). ATP and NADPH from the light-dependent reactions provide the energy and reducing power to convert PGA into PGAL(phosphoglyceraldehyde) through a series of enzymatic steps. Some PGAL molecules are then used to regenerate RuBP, while others combine to form glucose and other organic compounds.
Overall, photosynthesis is a remarkable process where plants capture light energy and convert it into chemical energy in the form of glucose, which serves as a fundamental energy source for both plants and other organisms in the food chain.
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5. The sequence of nitrogen bases on a portion of a strand of DNA is ATGCAA. Which
sequence best represents the portion of the messenger RNA strand that encodes this
information?
A TAGOTT
B. UAGOUU
CAUBCAA
D. UAOGLU
ace
Answers
UAGOUU is a messenger RNA strand that encodes this information.
What is Messenger RNA?
Single-stranded RNAs of the type known as messenger RNA, or mRNA, are used to make proteins. mRNA is created during transcription from a DNA template.
The function of mRNA is to transport protein information from DNA in the cell's nucleus to the cytoplasm (watery center), where the machinery responsible for producing proteins reads the mRNA sequence and converts each three-base codon into an amino acid that will eventually create a protein.
mRNA, or messenger RNA. Therefore, mRNA is actually a type of nucleic acid that aids in the cellular machinery's ability to read the human genome, which is encoded in DNA.
Therefore, UAGOUU is a messenger RNA strand that encodes this information.
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Amino acids are used to build
Answers
Answer:
Hello!
Explanation:
\(⭐ \red{\textbf{amino \: acids \: are \: used \: to \: build}}\)
Amino acids are organic compounds that combine to form proteins.Amino acids are organic compounds that combine to form proteins. The human body uses amino acids to produce proteins to help the body break down food.
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regards
atte:
Ángela
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Answer:
Proteins.
Explanation:
"For a brick, He flew pretty good" - Sargent Avery Johnson
causes water to bead up on surfaces (glass, fabric, leaf), which slows wetting of the surface and inhibits the cleaning process. hydrophobicity hydrophylicity surface tension surfactant
Answers
Surface tension causes water to bead up on surfaces (glass, fabric, leaf) which slows the wetting of the surface and inhibits the cleaning process.
Surface tension is a phenomenon in which the surface of a liquid, where the liquid is in proximity with a gas, acts as a thin elastic sheet. This term is generally used when the liquid surface is in contact with gas (such as the air).
Lower surface tension means the cleaning fluid can get into compact spaces easily. It directly influences the ability of the cleaning fluid to wet a surface and evidently, you can't clean if you can't wet.
Various intermolecular forces, such as Van der Waals forces, bring out the liquid particles together. Along the surface, the particles are tuged toward the rest of the liquid.
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Which description applies to alternative mRNA splicing?
1. heritable changes in gene expression that occur without altering the DNA sequence
2. processing of exons in mRNA that results in a single gene coding for multiple proteins
3. mRNA modifications such as additions of a 5′‑cap and 3′ poly‑A tail and removal of introns
4. a gene cluster controlled by a single promoter that transcribes to a single mRNA strand
5. protein modifications such as addition of a functional group or structural changes such as folding
Answers
The description that applies to alternative mRNA splicing is: processing of exons in mRNA that results in a single gene coding for multiple proteins. The correct option is 2.
Alternative mRNA splicing is a process in which a single gene creates various proteins by splicing its coding sequence in various ways throughout transcription. Exons are coding sequences that are separated by introns. The majority of genes have introns, and when a gene is transcribed, the introns are removed and the exons are spliced together to make the final mRNA transcript. Alternative splicing happens when the pre-mRNA molecule splices in various ways, allowing different mixtures of exons to be spliced together to create various mRNA transcripts.
This option is correct: Processing of exons in mRNA that results in a single gene coding for multiple proteins.
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