co-expressed eukaryotic genes are usually located on different chromosomes. how are genes coordinately controlled in eukaryotic cells? coordinately controlled genes in eukaryotic cells are activated by the same chemical signals. coordinately controlled genes in eukaryotic cells are located together on the same chromosome. a specific combination of control elements in each gene's enhancer coordinates the simultaneous activation of the genes.
Answers
Both transcriptional activators and repressors that bind to particular deoxyribonucleic acid (DNA) sequences regulate the expression of eukaryotic genes.
What mechanism regulates eukaryotic gene expression most frequently?Unlike prokaryotic cells, eukaryotic cells can regulate gene expression at a variety of different levels. Eukaryotic gene expression is controlled, starting with access to the DNA. Even before transcription is started, this type of regulation, known as epigenetic regulation, takes place.
How do prokaryotes and eukaryotes regulate gene expression?Prokaryotic gene expression is mostly regulated by transcription. The regulation of eukaryotic gene expression involves epigenetics, transcription, post-transcription, translation, and post-translation.
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Related Questions
the yellow cast to the skin that indicates liver disease
Answers
The yellow cast to the skin that indicates liver disease is referred to as jaundice.
Jaundice is a condition characterized by a yellow discoloration of the skin and whites of the eyes that indicates an elevated level of bilirubin in the bloodstream. Bilirubin is a yellow-colored substance produced during the natural breakdown of red blood cells in the body.
When the liver is damaged, it is unable to process bilirubin effectively, leading to a buildup of bilirubin in the bloodstream, which causes jaundice. The yellowing of the skin is not the only symptom of liver disease.
Other symptoms may include abdominal pain, swelling, and tenderness, nausea, and vomiting, loss of appetite, fatigue, weight loss, and fever. The severity of the symptoms varies depending on the underlying cause of the liver disease and the stage of the condition.
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What is "the balance of nature"?
Answers
The balance of nature is a theory that proposes that ecological systems are usually in a stable equilibrium or homeostasis, which is to say that a small change (the size of a particular population, is one example) will be corrected by some negative feedback that will bring the parameter back to its original "point of balance" with the rest of the system.
what roles do restriction enzymes, vectors, and host cells play in recombinant dna studies?
- cut DNA at specific sites.
- express foreign genes introduced in the recombinant DNA
- are plasmids, bacteriophages, or cosmids that receive, through ligation, a piece or pieces of foreign DNA
Answers
The roles do restriction enzymes, vectors, and host cells play in recombinant dna studies is cut DNA at specific sites
Restriction enzymes play a crucial role in recombinant DNA studies by cutting DNA at specific sites, which allows for the manipulation of DNA sequences. These enzymes are used to create fragments of DNA that can be inserted into vectors, which are typically plasmids, bacteriophages, or cosmids that receive foreign DNA through ligation. Vectors act as delivery vehicles for the foreign DNA, allowing it to be introduced into a host cell.
Host cells are another key component in recombinant DNA studies, they are used to express the foreign genes introduced in the recombinant DNA. The host cell's machinery is used to transcribe and translate the foreign genes, producing the desired protein product. In summary, restriction enzymes are used to cut DNA, vectors are used to deliver foreign DNA into host cells, and host cells are used to express the foreign genes. Together, these three components are essential in recombinant DNA studies, which are used for a wide range of applications, including the production of recombinant proteins, gene therapy, and genetic engineering.
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The major function of mitochondria is to Group of answer choices generate ATP. oxidize organelles. produce proteins. move the cell. synthesize glycolipids.
Answers
Mitochondria are known as the powerhouse of the cell because the major function of mitochondria is to generate ATP or adenosine triphosphate.
ATP is a molecule that carries energy within cells, so it is crucial for various cellular functionsMitochondria is an organelle that is found in the eukaryotic cells of almost all living organisms. These organelles are known as the powerhouse of the cell since they generate most of the ATP needed by the cell to maintain cellular functions.
Mitochondria are oval-shaped, membrane-bound organelles that are known for their double-membraned structure. They have their DNA and can multiply and divide by themselves. These organelles play an important role in cellular respiration, the process by which cells convert nutrients into energy that is used to fuel the cell's activities.
Mitochondria are known to produce up to 90% of the cell's energy, making them an essential component of the cell. Therefore, the major function of mitochondria is to generate ATP.
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How many yeast cells would you expect to find after 15 days?
(Will mark as brainliest)
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Answer:
4.5 thousands is the correct answer
In transgenic mouse that produces excess insulin, it’s reasonable to assume that relative to a wild-type mouse, the transgenic mouse has.
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It is reasonable to assume that, compared to a wild-type mouse, a transgenic mouse that produces excess insulin has higher glycolysis and lipogenolysis.
Making a humanized line to research a specific human gene or disease is a popular method. To assist researchers in better comprehending crippling diseases like cancer, Parkinson's, Alzheimer's, diabetes, and others, new strains of humanized mice are constantly being created.
But there is much more than meets the eye, as cutting-edge technologies like CRISPR/Cas9 enable more precise generation of transgenic mice models than ever before.
Transgenic laboratory mice are a crucial instrument in genetic research when taking into account the medications created to cure and manage symptoms of various disorders.
As a result of innovations initially tested in transgenic mice, diseases like cancer, Alzheimer's disease, hereditary disorders, and a range of uncommon genetic problems are now more durable than ever before.
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Jackie Robinson avoided serious
trouble as a teenager
Answers
Answer:
Oh Okay
Explanation:
Um can I have a brainliest pls :) :) :) :) :) :)
some birth control pills are forms of synthetic progesterone. progesterone prevents ovulation and follicular development. it works via negative feedback by decreasing the release of gonadotropin-releasing hormone (gnrh) from the hypothalamus. which hormones are affected by this type of birth control pill, and how are they affected? why does this prevent ovulation and follicular development?
Answers
Synthetic progesterone in birth control pills provides a reliable method of contraception by suppressing ovulation and inhibiting the development of follicles, thereby preventing fertilization and pregnancy.
Birth control pills containing synthetic progesterone, also known as progestins, primarily affect the hormones involved in the menstrual cycle, namely follicle-stimulating hormone (FSH) and luteinizing hormone (LH). These hormones are released by the pituitary gland and play a crucial role in the maturation and release of eggs from the ovaries.
Synthetic progesterone works by inhibiting the secretion of gonadotropin-releasing hormone (GnRH) from the hypothalamus, which, in turn, reduces the release of FSH and LH from the pituitary gland. This negative feedback loop results in the suppression of ovulation and the development of follicles in the ovaries.
Without sufficient levels of FSH and LH, the follicles in the ovaries cannot develop fully, preventing ovulation. Additionally, synthetic progesterone thickens the cervical mucus, making it more difficult for sperm to reach the egg even if ovulation were to occur.
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What are the differences between a synonymous mutation, a missense mutation, and a nonsense mutation? drag the terms on the left to the appropriate blanks on the right to complete the sentences.
Answers
Mutations are changes in the DNA sequence that affect the genetic code. The way a gene is expressed in a cell can be influenced by mutations.
In genetics, there are three types of mutations: synonymous mutations, missense mutations, and nonsense mutations.
Synonymous mutations are a type of genetic mutation that does not affect the protein sequence's final product. Synonymous mutations are a result of base substitutions in DNA that do not change the amino acid sequence.
Missense mutation occurs when a single nucleotide change in DNA leads to an amino acid change in the protein. These mutations have the potential to alter protein function, as they often result in abnormal protein folding or a failure to interact with other molecules.
A nonsense mutation is a type of mutation that occurs when a premature termination codon is produced in a coding sequence. This results in a truncated and usually non-functional protein.
These mutations can result in an incomplete or nonfunctional protein, leading to a loss of normal function.
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Of two stars of spectral class B5, one has broad hydrogen lines and the other has narrow hydrogen lines. How do these stars differ physically?
Answers
The physical difference between the two stars of spectral class B5 is that the star with broad hydrogen lines has a higher temperature and faster rotation compared to the star with narrow hydrogen lines.
The width of the hydrogen lines in a star's spectrum provides information about its physical properties. In this case, the star with broad hydrogen lines indicates a higher temperature and faster rotation compared to the star with narrow hydrogen lines.
The broadening of spectral lines is primarily caused by two factors: temperature and rotation. Higher temperatures lead to increased thermal motion of particles in the star, resulting in broader spectral lines. Therefore, the star with broad hydrogen lines has a higher temperature than the star with narrow hydrogen lines.
Additionally, the rotation of a star can also affect the broadening of spectral lines. A faster rotation produces a larger Doppler shift, which leads to broader lines in the spectrum. Therefore, the star with broad hydrogen lines is likely rotating at a higher speed than the star with narrow hydrogen lines.
Overall, the presence of broad and narrow hydrogen lines in the spectra of these B5 stars suggests differences in temperature and rotation, indicating variations in their physical characteristics.
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Many cities build special construction joints in bridges to allow for the expansion and
contraction of the bridge during changes in temperatures known as thermal
expansion. What type of movement in the bridge could be expected during a warm
front in the summertime?
A
The bridge would experience no changes,
B
The bridge would contract due to the particles would be moving closer together,
С
The bridge would be closed during the warm front due to cracking in the concrete.
D
The bridge would expand due to the particles spreading out.
Answers
What is another name for the first and second stop on a micropipette?
Answers
Answer:
the first stop is used to fill the micropipette tip and the second stop is used to dispense the content of the tip
How many times does interphase occur before meiosis?
Answers
Would all of the reptiles in an area be considered a population? EXPLAIN
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The study of a living being is called biology.
The correct answer to the question is yes.
What is the population?Population typically refers to the number of people in a single area, whether it be a city or town, region, country, continent, or the world.
According to the question, the reptiles living in an area is considered a reptile.
Hence, the correct answer is yes.
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Which statement below best describes the role of mutations in evolution by natural selection?
A Mutations increase the genetic variation within a population, and each of the variants provides an advantage under different circumstances
B Mutations increase the genetic variation within a population, and some of the variants may provide an advantage to individuals over time
C Mutations help stabilize the genetic variation within a population, and only one or two variants generally provide an advantage to individuals.
D Mutations help reduce the genetic variation within a population, and thus increasing the rate that new adaptations develop.
Answers
Answer:
B. Mutations increase the genetic variation within a population, and some of the variants may provide an advantage to individuals over time
The role of mutations in evolution by natural selection is option b. Mutations increase the genetic variation within a population.
Role of mutation in evolution:The mutation is significant as the first step of evolution since it developed the new DNA sequence for the specific gene that developed the new allele.
Also, at the same time, it rise the genetic variation within the population also it provides as an advantage to individual
hence, the option b is correct.
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The average lethal blood concentration of morphine is estimated to be 2.5 ug/mL with standard deviation of 0.95 ug/mL The data is normally distributed. Examine the range of values 0.05 to 4.95 pg/mL Answer the following questions and provide the appropriate calculations (13 points): a. What is the probability associated with the range lethal morphine blood levels? b. Provide the range of values that lie within 1, 2 and 3 standard deviations from the mean_ What is the probability that somebody dies if the blood morphine concentration is 0.3 pg/mL
Answers
The probability associated with the range of lethal morphine blood levels is 0.99. The probability that somebody dies of the blood morphine concentration is 0.3 pg/ mL will be 0.0103.
What is Probability?A probability is a number which reflects the chance or likelihood that a particular event will occur. Probabilities can be easily expressed as the proportions which range from 0 to 1, and they can also be expressed as the percentages ranging from 0% to 100%.
Mean (u) = 2.5,
Standard deviation (σ) = 0.95
(a) P(0.05 < x < 4.95)
P(0.05-2.5/0.95 < x < 4.95 -2.5/0.95)
P(-2.5789 < x < 2.5789)
P ( x < 2.5789) - P(< -2.5789)
0.9950 - 0.0050
= 0.99
(b) within 1 S.D Range values are
1, S.D= (μ ± σ) = 2.5 ± 0.95 = (1.55, 3.45)
2, S. D = (μ ± 2σ) = 2.5 ± 2 (0.95) = (0.6, 4.4)
3, S. D = (μ ± 3σ) = 3(0.95) = (-0.35, 5.35)
(c) P(x < 0.3)
P(Z < 0.3-2.5/ 0.95)
P(Z<-2.3158)
P = 0.0103
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What is the name of the layer of the uterus that contracts to expel menstrual fluid or a baby? Select one: a. Perimetrium b. Endometrium C.Myometrium d. Exometrium
Answers
What is the name of the layer of the uterus that contracts to expel menstrual fluid or a baby is c. Myometrium
The myometrium is the layer of smooth muscle tissue in the uterus. It is responsible for the contraction of the uterus during various reproductive processes, including the expulsion of menstrual fluid during menstruation and the expulsion of a baby during childbirth.
The myometrium's contractions are controlled by hormones and play a crucial role in facilitating menstrual flow and labor. The other options listed, perimetrium, endometrium, and exometrium, refer to different layers of the uterus but do not have the primary function of contracting to expel menstrual fluid or a baby.
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Although prokaryotic and eukaryotic cells seem very different, they actually have some similar structures. Select the structures found in both.
Question 1 options:
cell membrane, DNA, ribosomes
cell membrane, DNA, mitochondria
cell membrane, nucleus, ribosomes
cell wall, circular chromosome, RNA
Answers
Answer:
im pretty sure b, sorry if its wrong lol
Answer:
Cell membrane, DNA, ribosomes
Explanation:
The other person was wrong-
the results of the subject's blood tests showed elevated levels of lactate, pyruvate, and lactate dehydrogenase. describe the most likely explanation of these test results by completing the passage. decreased activity of one or more subunits of directly causes to accumulate. the accumulation of this metabolite leads to increased production of which then converts
Answers
Decreased activity of one or more subunits of PDH complex (the alpha-ketoglutarate dehydrogenase complex, the PDH complex, lactate dehydrogenase) directly causes Pyruvate (pyruvate, lactate, CO2) to accumulate. The accumulation of this metabolite leads to increased production of lactate dehydrogenase_ (the alpha-ketoglutarate dehydrogenase complex, the PDH complex, lactate dehydrogenase) which then converts pyruvate to lactate (pyruvate to lactate, lactate to pyruvate, pyruvate to acetyl CoA, alpha-ketoglutarate to succinyl CoA).
What is pyruvate?
The simplest alpha-keto acid is pyruvic acid, which has a carboxylic acid and a ketone functional group. The conjugate base pyruvate, CH3COCOO, is a metabolic intermediary found in many different cell-wide metabolic pathways.
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Plant and animal cells have similarities and differences. One difference is that plant cells have organelles called chloroplasts. What is the reason that plant cells have chloroplasts, but animal cells do not have chloroplasts?
A) Animal cells have more vacuoles and do not have space for chloroplasts.
B) Animal cells make their own food but use different organelles for the process.
C) Chloroplasts are used in the process of photosynthesis, where plants make their own food.
D) Chloroplasts are not needed in animal cells, because animal cells do not have a green color.
Answers
Answer:
C) Chloroplasts are used in the process of photosynthesis, where plants make their own food.
Explanation:
B is incorrect A is incorrect and C just doesn't seem right
many drugs act by binding to what? choose one: cell-surface receptors nuclear receptors plasma membrane cyclic amp extracellular signal molecules
Answers
Many drugs act by binding to cell-surface receptors. The correct answer choice is " cell-surface receptors"
Cell-surface receptors are typically transmembrane proteins that are located on the outer surface of the cell membrane. When a drug binds to a receptor, it triggers a signaling pathway that ultimately leads to a cellular response. The specificity of drug-receptor binding is critical to the effectiveness of the drug and the minimization of unwanted side effects.
There are many different types of cell-surface receptors, including G protein-coupled receptors (GPCRs), receptor tyrosine kinases (RTKs), and ligand-gated ion channels. Each type of receptor responds to a different type of extracellular signal molecule, such as a hormone, neurotransmitter, or growth factor.
For example, epinephrine binds to GPCRs to increase heart rate and blood pressure, while insulin binds to RTKs to stimulate glucose uptake in cells.
Therefore, " cell-surface receptors" is the correct option.
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TUS
A line intersects the points
(2, 3) and (5, 6).
What is the slope of this line?
m =
[?]
Slope = y2 - 1
X1
Answers
the three ossicles of the middle ear are known as ________.
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The three ossicles of the middle ear are the malleus, incus, and stapes.
The malleus is also called the hammer because of its shape, the incus is also known as the anvil, and the stapes is sometimes called the stirrup.
Together, they form a chain of small bones that transmit sound vibrations from the eardrum to the inner ear. The malleus is connected to the eardrum, the incus connects the malleus and stapes, and the stapes is attached to the oval window of the inner ear.
The ossicles amplify and transmit sound waves to the inner ear, allowing us to hear sound.
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migration is required for genetic drift to occur. higher rates of migration will increase genetic drift. True or False
Answers
Migration that increase genetic variation would be genetic flow . Genetic drift is a random event.
Indicate whether the following statements regarding the actions of ADH and aldosterone are true or false. 1. Aldosterone acts on the distal tubule and the upper part of the collecting duct. (Click to select) 2. Aldosterone stimulates the active transport of two molecules of Nat for every three molecules of K. (Click to select) 3. If Nat concentrations in the blood decrease below normal levels, aldosterone will be secreted. Click to select) 4. ADH is secreted when the body's stores of water are plentiful. (Click to select D 5. ADH increases the number of water channels present in the membranes of the collecting ducts. Click to select D look Print
Answers
The following are the true or false statements regarding the actions of ADH and aldosterone:
1. Aldosterone acts on the distal tubule and the upper part of the collecting duct. (True)
2. Aldosterone stimulates the active transport of two molecules of Nat for every three molecules of K. (False)
3. If Nat concentrations in the blood decrease below normal levels, aldosterone will be secreted. (True)
4. ADH is secreted when the body's stores of water are plentiful. (False)
5. ADH increases the number of water channels present in the membranes of the collecting ducts.
(True)Explanation:1. Aldosterone is a hormone that acts on the distal tubule and the upper part of the collecting duct. It increases sodium and water reabsorption while reducing potassium reabsorption.2. Aldosterone stimulates the active transport of two molecules of potassium (K+) for every three molecules of sodium (Na+) in the collecting ducts and distal tubules.3. If the levels of sodium (Na+) decrease below the normal level, aldosterone will be secreted, which causes sodium and water reabsorption while reducing potassium excretion.4. ADH is antidiuretic hormone which is released when there is a low water level in the body and is secreted by the posterior pituitary gland.5. ADH increases the number of water channels present in the membranes of the collecting ducts, allowing more water to be reabsorbed by the body, and less water is excreted in the urine.
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glucose
Outside of the Cell
Inside of the Cell
Choose which type of cell transport is occuring in this image.
Answers
Answer:
post the image first then ask
A 160 lb. college student consumes a bowl of cereal containing 750 Calories in the morning. He then sits quietly in class for 4 hours, and then goes for a 30-minute run. How many Calories did he use, and was it more or less than he consumed?
Answers
Answer:
less
Explanation:
because a 30 min run can only burn 200-500 calories
In the morning, a 160-pound college student consumes a bowl of cereal with 750 calories. 30 minutes of running can only burn 200-500 calories.
What is Calories?The calorie is a type of energy unit. For historical reasons, there are two main definitions of "calorie." The large calorie, food calorie, or kilogram calorie was originally defined as the amount of heat needed to raise the temperature of one kilogram of water by one degree Celsius.Calories are the units of energy released by your body when it digests and absorbs food. The higher the calorie content of a food, the more energy it can provide to your body. When you consume more calories than you require, your body stores the excess calories as fat. Even fat-free foods can be high in calories.
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what are some of the key features that characterize amphibians? multiple select question. 4 heart chambers partially divided heart cutaneous respiration legs
Answers
Some key features that characterize amphibians include 4 heart chambers, a partially divided heart, cutaneous respiration, and legs.
Amphibians are a class of vertebrates that live both in water and on land. They have a unique set of characteristics that help them adapt to their environment. One of these characteristics is having 4 heart chambers, which helps to efficiently pump blood throughout their body. Another characteristic is a partially divided heart, which separates oxygenated and deoxygenated blood to improve oxygen delivery. Additionally, amphibians are able to breathe through their skin, a process called cutaneous respiration. Lastly, they have legs that are adapted for both swimming and walking on land.
Amphibians have several key features that set them apart from other vertebrates. They have a unique cardiovascular system, with 4 heart chambers and a partially divided heart. They are also able to breathe through their skin, which allows for gas exchange even when submerged in water. Lastly, their legs are adapted for both swimming and walking on land, allowing them to move easily between their aquatic and terrestrial environments. These characteristics make amphibians well-suited for their unique lifestyles and habitats.
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what is photosynthesis
Answers
Answer:
It is the process where the plants use sunlight to gain their food.
Explanation:
Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Hope this helps!
Answer:
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
Explanation:
mark me as brainiest :D
why are plants the start of the food web