notch is a receptor protein displayed on the surface of certain cells in developing fruit fly embryos. notch’s ligand is a membrane-bound protein called delta that is displayed on the surface of adjacent cells. when notch is activated by its ligand, the intracellular tail of the notch protein becomes separated from the rest of the protein. this allows the intracellular tail to move to the cell’s nucleus and alter the expression of specific genes.
Answers
Delta's role in regulating cell communication through the Notch signaling pathway is that Delta restricts cell communication to short distances within a developing embryo.
What is cell communication?Chemical signals are typically used by cells to communicate. These chemical signals, which are proteins or other molecules made by the sending cell and released into the extracellular space, are frequently secreted by the cell. They can then travel to nearby cells by floating there, much like messages in a bottle.
During the development of fruit fly embryos, the receptor protein notch is visible on the surface of some cells. The protein delta, which is membrane-bound and expressed on the surface of neighboring cells, is the ligand for the notch. The intracellular tail of the notch protein separates from the rest of the protein when notch is activated by its ligand. Consequently, the intracellular tail can move to the cell's nucleus and change the way some genes are expressed.
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Related Questions
Select the correct answer from each drop-down menu.
A researcher was studying mutations in bacteria. He found that certain bacteria had changes in their DNA that allowed them to be resistant to antibiotics. This research is an example of
. The mutation will lead to
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The researcher studying mutations in bacteria and discovering that certain bacteria had DNA changes leading to antibiotic resistance is an example of genetic adaptation. The mutation in bacteria's DNA enables them to survive and multiply even in the presence of antibiotics, making them resistant to the drugs.
1. The researcher's study revolves around mutations in bacteria.
2. The researcher finds specific changes in the DNA of bacteria.
3. These DNA changes enable the bacteria to be resistant to antibiotics.
4. This discovery showcases genetic adaptation in bacteria.
5. Genetic adaptation refers to the process in which organisms undergo genetic changes that allow them to survive and reproduce better in their environment.
6. In this case, the bacteria's mutation in their DNA provides them with the ability to resist the effects of antibiotics.
7. Antibiotic resistance allows the bacteria to survive and multiply even in the presence of drugs that would typically inhibit their growth or kill them.
8. The ability to resist antibiotics is advantageous for the bacteria, as it enhances their chances of survival in environments where antibiotics are present.
9. This research highlights the importance of understanding genetic adaptations in bacteria, as it helps in developing strategies to combat antibiotic resistance and improve medical treatments.
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As a solid, water floats. This means that Multiple Choice O solid water is less dense than liquid water O organisms in ponds, lakes, and reservoirs can survive under the ice cover O the hydrogen bond arrangement differs between ice and liquid water
Answers
As a solid, water floats. This means that solid water is less dense than liquid water, and organisms in ponds, lakes, and reservoirs can survive under the ice cover because the hydrogen bond arrangement differs between ice and liquid water. So the answer is all correct.
Hydrogen bond formation plays an important role in liquid water. When water molecules form hydrogen bonds with each other, water develops several unique chemical characteristics compared to other liquids. One is that when the temperature of the water drops and freezes, the water molecules form crystal structures held together by hydrogen bonds. This makes ice less dense than liquid water.
This is an anomaly when the ice density is low. This low density of ice causes ice to float on the surface of liquid water, much like ice cubes in a glass of water. In lakes and ponds, ice forms on the surface of the water creating an insulating barrier that protects the animal and plant life in the pond from freezing. Without this insulating layer of ice, the plants and animals that live in the pond would freeze in the solid block of ice and not survive.
From the explanation, the answer choices above are all correct.
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What is the chemical reaction responsible for the oceans becoming more acidic?
Answers
Answer:
CO2 is creating, ph levels to decreases causing it to become acidic
Explanation:
this is because of us putting more co2 in the air causing great change in ph levels. :(
Choose one sort of diversity (for example, age, gender, etc.)
and explain why it is essential as a factor in your opinion.
Answers
The type of diversity that I have chosen is ‘Gender Diversity’ and below are the reasons why it is essential as a factor in my opinion.
Gender diversity refers to the representation of both men and women in the workplace and society as a whole. It includes people of all genders, including non-binary individuals. Gender diversity has a significant impact on the workplace and society in general. As women are still underrepresented in many industries and roles, increasing gender diversity can lead to more opportunities for women and help break down gender stereotypes.
By having a gender-diverse workplace, companies can ensure compliance with these laws and avoid penalties or legal issues in the future.In conclusion, gender diversity is essential because it promotes a more inclusive environment, encourages innovation and creativity, and leads to better decision-making. By having a gender-diverse workplace, companies can improve employee satisfaction, increase profitability, reduce discrimination and biases, and ensure compliance with laws related to gender diversity.
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How do you think the specialized structure of a nerve cell enables it to carry signals over long distances?.
Answers
Although neurons have much in common with other cell types, they are structurally and functionally unique. Specialized projections called axons allow neurons to transmit electrical and chemical signals to other cells. Neurons can also receive these signals through root-like extensions known as dendrites.
What is the function of nerve cells?Neurons are cells responsible for transmitting nerve impulses. Cellular devices are citable cells, that is, they can respond to a membrane stimulus that is different from the electrical potential difference in the cell.
Whit this information we can conclude that Nerve cells, which are also called neurons, are one of the main components of this system. Neurons are a type of cell whose specialty is to receive and conduct impulses to other cells. In addition to neurons, glial cells also make up nervous tissue.
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What is the most specific ecological level?A. a habitatB. an organismC. an ecosystemD. a biosphere
Answers
We have to consider that the ecology, in aims to classify from a more general to a more specific magnitude, and propose a categorization of the ecological levels approaching how broad or narrow they are. In this sense, a broader level would be the biosphere, since there are too many components of the biome. and a narrower level would be a very organism since it would be the more specific category (B answer option), as we can see in the following picture:
Please help! original answers only please!
How would your chromosomes compare to someone else’s chromosomes?
Answers
Answer: since im a male i have an x and y chromosomes and females have x and x if you are female you can reverse this to go your way
Explanation:
The Covid-19 pandemic has accelerated the adoption of remote work practices. It is highly likely that hybrid work models will become the norm at post-pandemic workplaces globally, as well as in South Africa. Hybrid work models would bring many challenges to both employees and managers in South Africa - a country also known for its diversity and inequalities.
QUESTION
Compare Maslow’s hierarchy of needs theory and Alderfer’s ERG theory by critically applying these two theories to the above scenario. Make reference to appropriate interventions by senior managers in motivating both frontline employees as well as middle managers.
Answers
Maslow's Hierarchy of Needs was transformed by Clayton Alderfer into the three-factor ERG model of motivation. According to Maslow's theory, people never reach a stable degree of need satisfaction.
In Alderfer's concept, the letters E, R, and G stand for existence, relatedness, and growth, respectively. A content theory of motivation is the ERG model. According to Alderfer's paradigm, these three demands are what drive all human motivation. Existence, which is the first of Alderfer's 3 necessities, is the most immediate and pressing necessity. It generally relates to both physical and psychological survival.
The need for a positive relationship with oneself, a sense of belonging, and relatedness has advanced. The least obvious but nevertheless important component of the ERG model is Alderfer's drive for growth, which is really tied to growth, happiness, and the experience of reaching one's potential.
Maslow's theory would imply that people should strive to meet their immediate needs while at work, and that managers and leaders should concentrate on assisting their teams in meeting one particular level of need at a time. Before going on to the next level of demands in Maslow's Hierarchy of demands, people must have satisfied the previous one. For instance, they must first have their demands for safety met before being driven by a sense of social connection.
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Place the steps in order below using the terms first, second, third, and so on.
Some viral DNA is incorporated into the bacterium's genome as a spacer.
Bacteria is exposed to phage (virus) for the first time and survives.
Cas-9 removes the targeted sequence of cutting it out of the bacterial genome.
The RNA acts as a guide for the protein
Cas-9 finds an exact DNA sequence match
in an invading virus.
Transcription occurs and RNA is made
from DNA.
Answers
CRISPR-Cas9 is a revolutionary gene editing technique that has enabled scientists to make precise changes to an organism’s DNA.
Bacteria is exposed to phage (virus)First, bacteria is exposed to phage (virus) for the first time and survives. Second, transcription occurs and RNA is made from DNA.Third, the RNA acts as a guide for the protein Cas-9. Fourth, Cas-9 finds an exact DNA sequence match in an invading virus.Fifth, Cas-9 removes the targeted sequence of cutting it out of the bacterial genome.Finally, some viral DNA is incorporated into the bacterium's genome as a spacer.The process begins when bacteria is exposed to phage (a virus) for the first time and survives.This triggers the production of RNA from the DNA which acts as a guide for the protein Cas-9.Cas-9 then searches for an exact match in the invading virus and when found, cuts out the targeted sequence from the bacterial genome.The viral DNA is then incorporated into the bacterium’s genome as a spacer.This process is highly precise and efficient, and is being used to explore the potential of gene editing in many fields.To learn more about Bacteria is exposed to phage (virus) refer to:
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Blood carries oxygen from your lungs to the rest of your body. As you inhale, high oxygen concentration is taken up by your lungs. The lungs have a higher oxygen concentration than the blood. Oxygen will diffuse out of the lungs and into your blood.
Is this Passive or Active Transport?
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What part of the cell is responsible for controlling the transport of material in and out of
the cell?
Answers
Answer:
The Plasma membrane.
sorry, i know this is late.
1. Can a single organism change its traits to become better suited for its environment during its lifetime? (highlight one) YES or NO
Answers
Answer:
check explanation
Explanation:
If you are talking about adapting to an environment then yes, like how we train to strengthen our muscles to get stronger. If you mean by evolving then no, a single organism can not evolve their traits in a lifetime, like a human can't naturally grow gills to breathe underwater
How would you recognise red blood cells when looking at a colour photograph of blood taken with a light microscope?
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Answer:
Erythrocytes, or red blood cells, are by far the predominant cell type in the blood smear. They appear as biconcave discs of uniform shape and size (7.2 microns) that lack organelles and granules. Red blood cells have a characteristic pink appearance due to their high content of haemoglobin.
what is a tree doing when it is growing from the energy it receives from the sun?
Answers
Answer:
It's either Primary Growth, or Phototropism, depending on what exactly you're asking.
Explanation:
1) True 2) False Determine whether each statement is true or false: Crossing over is an event that occurs in Meiosis II and results in the exchange of genetic information between sister chromatids.
Answers
False. Crossing over is an event that occurs in Meiosis I and results in the exchange of genetic information between homologous chromosomes.
Meiosis is a specialized form of cell division that occurs in sexually reproducing organisms to produce haploid gametes (sex cells) for sexual reproduction. It involves two rounds of division, known as meiosis I and meiosis II, resulting in the formation of four genetically diverse daughter cells. Meiosis I involves the pairing and exchange of genetic material between homologous chromosomes through a process called crossing over. This promotes genetic variation. Meiosis II is similar to mitosis, where the sister chromatids separate, resulting in the distribution of one copy of each chromosome to each daughter cell. Meiosis ensures the halving of the chromosome number and contributes to the genetic diversity of offspring.
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Which of the following has the greatest potential as a cancer treatment?Find a way to turn on the gene for making telomerase in normal cells, so that the normal cells would soon outnumber the cancer cells.Find a way to turn on the gene for making telomerase in cancer cells, since they will be unable to divide if their telomeres are too long.Find a way to turn off the gene for making telomerase in all cells in embryos, so that they never develop cancer.Find a way to turn off the gene for making telomerase in cancer cells, since the cells would stop dividing when the telomeres were gone.
Answers
Surgery, chemotherapy, and radiotherapy are the most often used conventional treatment techniques, while hormone therapy is one of the more recent modalities.
How can telomerase production be boosted?These findings demonstrated that in men, telomerase activation in response to high-intensity cycling exercise is diminished with age [78]. A 30-minute treadmill exercise was sufficient, according to another study, to boost the PBMC telomerase activity in 22 young, healthy subjects—11 men and 11 women—[79].
How is telomerase suppressed?oligonucleotides related to antisense. Antisense DNA oligonucleotides are one of the oldest and most widely utilized families of telomerase inhibiting drugs. Since the 1990s, antisense compounds have frequently been utilized to prevent the translation of mRNA into a useful protein.
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A segment of mRNA has the sequence ugacauagc which of the following would represent the tRNA anticodons for this mRNA
Answers
Answer: Plant because they survive by water and sunlight.
Explanation:
In which location would you most likely find the LEAST number of geologic events such as earthquakes, volcanoes, sea floor spreading or mountain building?
Answers
Answer:
Locations outside seismic zones are those that are least likely to have geological events.
Explanation:
Seismic zones are the regions most likely to have seismic events across the plane. These zones have the ends of tectonic plates, which, when colliding, cause geological events. Some countries are then on top of these zones, while other countries are located far from the ends of the tectonic plates, being places less prone to geological events.
What happens to the particles when you pull the plunger up in each syringe
Answers
Answer:
a×b(aybz_azby)i+(azbx_axbz)j+(axby_aybx)k
Camouflage contributes to the cuttlefish's survival by enabling it to _______.A. warn potential predators that it is poisonousB. hide from predatorsC. mimic poisonous speciesD. sneak up on prey
Answers
Camouflage contributes to the cuttlefish's survival by enabling it to hide from predators. So, the correct answer is option B.
Cuttlefish conceal themselves from possible predators by blending in with their surroundings. They can use colours and patterns to blend in with their surroundings since they have a unique pigment system.
Predators find it challenging to locate them because of this. Cuttlefish can swiftly and efficiently hide from predators thanks to their ability to change their colour and pattern.
In addition to camouflaging themselves, cuttlefish can imitate other species' colours and patterns to make themselves appear to be something else to predators. This allows them to stay safe and survive in the wild.
Complete Question:
Camouflage contributes to the cuttlefish's survival by enabling it to _______.
A. warn potential predators that it is poisonous
B. hide from predators
C. mimic poisonous species
D. sneak up on prey
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What do mitochondria do in healthy cells, and ny had defective mitochondria caused
David to lose his vision?
Answers
Muscle weakness, intolerance to exercise, decreased hearing and vision, ataxia, seizures, learning difficulties, heart problems, diabetes, and poor growth are the hallmark signs of mitochondrial myopathy.
What will happen if have a defective mitochondria?Defects in mitochondria, the body's energy producers that may be found inside practically all cells, are the root cause of mitochondrial disorders. mitochondrial myopathies are mitochondrial diseases that create noticeable muscular issues, while mitochondrial encephalomyopathies are mitochondrial disorders that cause noticeable muscular and neurological abnormalities.Several of the syndromes linked to mitochondrial disease include Barth syndrome, Chronic progressive external ophthalmoplegia, Kearns-Sayre syndrome, Leigh syndrome, Mitochondrial DNA depletion syndromes , Mitochondrial encephalomyopathy, Lactic acidosis, and stroke-like episodes, Mitochondrial neurogastrointestinal encephalomyopathy, Myoclonus epilepsy with ragged red fibers, Neuropathy, ataxia, and retinitis pigmentosa , Pearson syndrome.The mtDNA mutation that causes NARP also causes MILS, and the two disorders can coexist in the same family. NARP can cause developmental delay, seizures, and dementia in addition to the primary symptoms for which it is called.To learn more about mitochondria refer :
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A firefighter wakes up in the middle of the night to the sound of an alarm. it is likely that her _____ have released epinephrine and norepinephrine.
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The sound from an alarm awakens a firefighter in the middle if the night. Her adrenal glands had most likely produced adrenaline and norepinephrine. The hormone epinephrine, also referred to as adrenaline, is secreted by the medulla of a adrenal glands.
Your adrenal glands, that are hat-shaped glands which are located on top of each kidney, release it as a hormone. As a neurotransmitter, norepinephrine is made from dopamine. Nerve cells inside the brainstem region and a region close to the spinal cord produce norepinephrine. When the body is at ease, resting, or eating, its parasympathetic nervous system is in charge of the digestion and rest response. In essence, it reverses the effects of sympathetic division following a stressful event.
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The term adenectomy means?
O A. Surgical removal of the nose
O B. Surgical removal of the brain
O C. Surgical removal of the heart
O D. Surgical removal of a gland
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Your welcome :)
Answer:
D- surgical removal of a gland
Explanation:
Ecological Succession is the natural progression of ________ replacement over time
Answers
The process of ecological succession occurs when a region's species and habitat mix shifts through time until a A key idea in ecology is ecological succession.
What exactly is the quiz on ecological succession?Environmental change that is organic, slow, and orderly is called ecological succession. One plant community is gradually replaced by another through ecological processes over time.
Is ecological succession a step-by-step process?The successive emergence and extinction of species within a community throughout time is referred to as succession. In primary succession, living creatures inhabit newly exposed or produced land; in secondary succession, an environment is disturbed and the remains of the preceding community are left behind.
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ANSWER QUICKK PLEASEE
Answers
Two sustainable farming techniques that promote soil health and reduce greenhouse gas emissions are:
crop rotationconservation tillageWhat is crop rotation and conservation tillage?Crop rotation involves planting different crops in the same field in a specific sequence, which helps to prevent soil nutrient depletion and pest infestations, leading to healthier soil.
Conservation tillage involves reducing the amount of tillage or plowing of the soil, which helps to maintain soil structure and prevent soil erosion, thereby reducing greenhouse gas emissions associated with soil disturbance.
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Explain how the formation of a submergent coastline differs from the formation of an emergent
coastline.
Answers
Answer:
One occurs when sea level rises whereas the other happens when the sea level drops.
Explanation:
The main difference between Submergent coastlines and emergent coastlines because Submergent coastlines formed when sea level rises or in other words, the land sinks down. Examples of submergent coastlines are estuaries, barrier bars, and barrier island systems while on the other hand, emergent coastlines occurs when sea level drops or the land rises. Hudson Bay and Eastern Coastal Plains are the examples of emergent coastlines.
Which organisms would have the most similar traits?
Answers
Answer:
Organisms in the same family will have the most similar traits.
Organisms mostly will be the same when they are in the same family, and if there are two organisms in different families that look alike, it will be a coincidence.
Answer: organisms in the same order
Yeet Skeet
If a mother is using drug during her pregnancy, her baby can be born with addiction syndrome towards the same drug. Explain.
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A cactus is adapted for life with limited water. The green
part of this cactus is its stem. Its stems are fleshy and
have a thick waxy coating.
What are two ways the structure of this cactus's stem helps the plant survive?
A. It takes in minerals from the soil.
B. It prevents water loss.
C. It carries out photosynthesis.
D. It holds the plant in the ground.
Answers
Answer:
i think its B hope it helps
Explanation:
Adaptations are the alteration that allows the survival of the fittest. The adapted structure of the cacti allows it to take the minerals from the soil and prevents water loss. Thus, options A and B are correct.
What are adaptations of cactus?Adaptation is seen as the modified physical and chemical characteristics that allow the organism to survive in stressful conditions. A cactus has adapted spines, roots, waxy skin, and deep-layered stomata.
These adaptation has allowed the cactus to survive the harsh conditions of dessert. The wide fibrous roots allow it to draw nutrients and minerals from the soil.
The thick, expandable stem with deep-layered stomata prevents the loss of water from the surface in high-temperature conditions and keeps the plant hydrated.
Therefore, options A and B. the adapted attributes of cacti prevent water loss.
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after meiosis, the resulting gametes have ____ the number of chromosomes as the parent cell
Answers
Answer:
After meiosis, the resulting gametes have half the number of chromosomes as the parent cell
Explanation: