How do prions make more of themselves?
Answers
brainiest pls?
Related Questions
Not only have you become an expert on nutrient pollution in lakes, you have also learned how to travel through time! You have transported yourself from the lake where you started in the 1950s to the same lake today. It’s a mess! Lots of sewage is being dumped in the lake, and there is also a problem with runoff (contaminated water flowing into the lake) from nearby industry. The lake is experiencing a toxic algal bloom because the cyanobacteria in the lake are producing a chemical called microcystin, a liver toxin that can make people sick when they drink the water. It is unusual to find more cyanobacteria in a lake than green algae, as typically green algae are superior competitors. Your challenge is to figure out what is happening in the lake, and in particular, why there are more cyanobacteria than green algae.In most lakes, green algae are at a competitive advantage over cyanobacteria, but in this lake the cyanobacteria dominate. There is something about the chemistry of this lake that is allowing cyanobacteria to prosper while keeping the green algae in checkIn most lakes, green algae are at a competitive advantage over cyanobacteria, but in this lake the cyanobacteria dominate. There is something about the chemistry of this lake that is allowing cyanobacteria to prosper while keeping the green algae in checkIs there a difference in the biology of these two phytoplankton that might provide a hypothesis for what is happening in this lake? (Look back at the natural history if you need to.)
Answers
The difference in the biology of green algae and cyanobacteria that may explain why cyanobacteria are dominating in the lake could be related to their ability to tolerate and utilize nutrients. Cyanobacteria are known to have a higher tolerance for nutrient-poor environments and are able to utilize nutrients more efficiently than green algae. This means that cyanobacteria can thrive in environments with low nutrient levels, while green algae may struggle to survive.
In the lake described in the question, there is a high level of nutrient pollution from sewage and runoff from nearby industry. This excess of nutrients in the lake may be allowing the cyanobacteria to thrive and outcompete the green algae. Additionally, cyanobacteria are able to produce toxins, such as microcystin, which can inhibit the growth of other phytoplankton and give them a competitive advantage.
Overall, the difference in the biology of these two phytoplankton, specifically their ability to tolerate and utilize nutrients, may be the reason why cyanobacteria are dominating in the lake.
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I need help with living environment for genetics unit I’m not sure why the answer for plant A species and plant B species is the answer I don’t know how the teacher got that answer
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A triplet codon is a DNA or RNA molecule that codes for a specific amino acid through a series of three subsequent nucleotides. Some codons act as start or stop signals for translation.
The triplet code, made up of three nucleotides, identifies a single amino acid.
Here we can see ‘UUG’ codes for LEU
‘GGU’ codes for ‘GLY’
‘UAU’ codes for TYR
What is triplet codon?
It is a particular sequence of three nucleotides that is used as a component of the genetic code to specify an amino acid for a particular protein or to start or stop protein synthesis.
A codon is a group of three nucleotides on a messenger ribonucleic acid (mRNA) that designates one of the 22 amino acids that are capable of forming proteins. The order in which these amino acids appear on the messenger RNA dictates the primary structure of the protein that will be produced.
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.
mutations that result in phenotypes that are favored by natural selection are known as
harmful
beneficial
somatic
gamete
Answers
Answer:
beneficial
Explanation:
beneficial mutations cause phenotypes that allows organism to have more fitness (like more offspring) and be favored by nature.
Chromosomes contain genes, and genes determine an organism's characteristics. Sometimes mutations occur in which the sequence of nucleotides within a gene becomes altered. Which of the following describes how a gene mutation would most likely affect an organism?A.It would cause different proteins to be produced during translation.B.It would cause the sugar-phosphate backbone of all of the organism's DNA to be modified.C.It would cause the codons produced to be more or less than 3 nucletoides in length.D.It would cause the wrong type of nucleic acid to be incorporated into the organism's genes.
Answers
A gene mutation would most likely affect an organism by A. causing different proteins to be produced during translation.
Genes contain the instructions for building proteins, and mutations can alter the sequence of nucleotides within a gene. The sequence of nucleotides determines the sequence of amino acids in a protein, which, in turn, determines its structure and function.When a mutation occurs in a gene, it can result in changes to the mRNA molecule transcribed from the gene. These changes can lead to different codons being produced during translation, which can cause substitutions, insertions, or deletions of amino acids in the resulting protein. As a result, the protein's structure and function may be altered, leading to changes in the organism's characteristics or traits. It's important to note that not all mutations have noticeable effects on an organism, and the impact of a mutation depends on its location within the gene, the type of mutation, and the specific protein that is affected.
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Where in the body does the latent, non infectious, non replicating form of the herpes simplex virus persist?
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The latent, non-infectious, non-replicating form of the herpes simplex virus (HSV) persists in nerve cells.
Specifically, HSV has the ability to establish a lifelong latent infection in sensory neurons, which are found in the peripheral nervous system. During the latent phase, the viral DNA remains in a dormant state within the nerve cells, typically in the trigeminal ganglia for oral HSV and the sacral ganglia for genital HSV. This allows the virus to evade the immune system and remain dormant until reactivation occurs, leading to recurrent outbreaks of active infection.
For herpes simplex virus type 1 (HSV-1), the virus typically establishes latency in the trigeminal ganglia, which are located near the base of the skull. This is why HSV-1 usually causes oral herpes, commonly known as cold sores. On the other hand, herpes simplex virus type 2 (HSV-2) usually establishes latency in the sacral ganglia, which are located in the lower part of the spine. This is why HSV-2 commonly causes genital herpes. It is important to note that while the virus is in its latent state, it is not actively replicating or causing symptoms. However, various triggers such as stress, illness, or a weakened immune system can reactivate the virus, leading to recurrent outbreaks of symptoms.
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NOT 100% SURE SO WANT FEEDBACK!!!WILL GIVE BRAINLIEST, RATE AND VOTE!!!AT LEAST TAKE A LOOK!!!!!!!!
What term refers to water that goes down the drain in your sink and shower or washing machine?
A) contaminants
B) wastewater
Answers
Answer:
B) wastewater
Explanation:
all the waste water that goes down our sinks, out of the shower, from our washing machines and even from our toilets. Blackwater – waste water that comes from our toilets. Greywater – waste water that comes from our sinks, laundries, showers and baths.
At the time Hutton proposed his ideas about the age of rocks, how old was Earth believed to be by most people in Scotland?
Answers
Answer:
In the late eighteenth century, when Hutton was carefully examining the rocks, it was generally believed that Earth had come into creation only around six thousand years earlier (on October 22, 4004 B.C.
James Hutton was a Scottish naturalist and geologist who discovered the age of the earth. The earth was believed to be 6000 years old by the Scottish people.
Who was James Hutton?
James Hutton is the father of modern geology and was involved in the discovery of the earth's age and the soil formation from the parent rocks. He made his contribution to discovering the age of Earth based on his observation rather than on assumptions.
Before he discovered the earth age, it was believed by the Scottish people that the planet was six thousand years old. He discovered the process of soil formation by weathering the parent and bog rocks that accumulated as sediments over years and allowed the discovery of the planet's age.
Therefore, it is believed that the earth was 6000 years old.
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the fundamental mechanism by which enzymes catalyze reactions is: a. they bind substrate just as a lock holds a key b. they utilize free energy from atp to convert substrate to product c. they stabilize the substrate of the reaction d. they stabilize the transition state of the reaction e. they stabilize the product of the reaction
Answers
A biological catalyst is an enzyme. Reactions' activation energies are reduced by catalysts. The rate of a reaction increases with decreasing activation energy. Enzymes accelerate processes by reducing activation energy.
The bonds holding together the atoms in molecules are ruptured, altered, and repaired during a chemical reaction, recombining the atoms to form new molecules. By lowering the activation energy, the energy hurdle that must be cleared for a chemical reaction to take place, catalysts improve the efficiency of this process. As a result, catalysts facilitate the formation of chemical bonds between atoms to create novel combinations and new compounds. Chemical reactions are accelerated and become more energy-efficient when catalysts are used. Additionally, catalysts possess a crucial quality known as selectivity that allows them to control an unwanted products.
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WILL GIVE BRAINLEST IF CORRECT BIOLOGY
Answers
Answer:
B. a proven, universal truth that states what happens
Explanation:
Option B, "a proven, universal truth that states what happens," comes closest to the definition of a law in physics. In physics, a law is a statement that describes a fundamental relationship or regularity between physical quantities or phenomena that has been tested and verified numerous times under a variety of conditions. A physical law is a concise and universally applicable description of how some aspect of the physical universe behaves under certain conditions. It is a statement that accurately describes the behavior of the natural world and can be used to make predictions about future events or phenomena. Therefore, option B is the most accurate definition of a law in physics.
...,......................................................................................................
in Biology None of the options given accurately define a law in biology. As mentioned earlier, the term "law" is not commonly used in biology to describe natural phenomena.
Instead, in biology, a scientific law can refer to a specific legal statute or regulation that pertains to the field of biology, such as environmental laws or laws related to the use of genetically modified organisms.
However, in the context of the scientific method used in biology, the term "theory" is more commonly used to describe a well-substantiated explanation of some aspect of the natural world that is based on a large body of empirical evidence. A biological theory can be thought of as a well-supported explanation for how and why certain phenomena occur. Therefore, none of the options provided accurately define a law in biology.
The effect if dead, hollow trees were removed from a forest
Answers
If dead, hollow trees were removed from a forest, the effect on the ecosystem would be significant. Dead, hollow trees provide a unique habitat for a wide variety of wildlife species. These trees are home to birds, insects, fungi, and other organisms that rely on the decaying wood and hollow cavities for survival.
Removing these trees would eliminate a crucial source of shelter and food for many species, leading to a decline in biodiversity. Additionally, dead, hollow trees play an important role in the carbon cycle. As these trees decompose, they release carbon back into the atmosphere, contributing to the overall health of the ecosystem. Removing them prematurely could disrupt this process, potentially leading to a buildup of carbon in the atmosphere and exacerbating the effects of climate change.
Overall, removing dead, hollow trees from a forest would have a negative impact on the ecosystem and the species that rely on them for survival. It is important to leave these trees in place, allowing them to decompose naturally and provide vital resources to the surrounding environment.
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Note- Complete question
What would be the effect on a forest if dead, hollow trees were removed?
The ____ suture is a single suture line that articulates the left and right sides of the palate.
Answers
The median palatine suture is a single suture line that articulates the left and right sides of the palate, which is found behind the incisive canal between right and left palatine bones in the mouth.
What is the median palatine suture?The median palatine suture can be defined as a specialized closure suture located in the cranial bones which has as function to allow the growth of the maxilla.
In conclusion, the median palatine suture is a single suture line that articulates the left and right sides of the palate, which is found behind the incisive canal between right and left palatine bones in the mouth.
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Is circulation an essential life process?
Answers
Answer:
The circulatory system is extremely important in sustaining life.
Explanation:
Hope this helps, sorry if incorrect
which enzyme works best in a very acidic enviroment? gastric or intestinal
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What makes this an ideal location for a murderer to dump a body? Select ALL that apply
there is only one road in/out making it easy to see if someone else is comming
there is an abundance of wildlife
it is an urban area
its a remote area
Answers
Answer:
its remote
Explanation:
what are chromosomes
A. strands I'd DNA wrapped around proteins.
B. The alleles that cause certain traits.
C. Any organism that cause contains DNA
D. A form of virus that infects cells.
Answers
Answer:
A. strands I'd DNA wrapped around proteins.
Explanation:
DNA is securely packed within the nucleus by chromosomes, which are thread-like structures. Histone proteins offer structural support for DNA by coiling it around them. During cell division, chromosomes assist in the replication and distribution of DNA. Each chromosome has a centromere, which separates the p (short) and q (long) arms. The centromere is found at the constriction point of the chromosome, which may or may not be the center.
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to control and co-ordinate the functions in blanks the true some chemical what are they
Answers
Answer:
yes
Explanation:
There are many different types of anemia. Based on the evidence in this case, what type of anemia does Harold likely have
Answers
Based on the evidence in this case, Harold likely has iron-deficiency anemia.
1. Evidence of Iron Deficiency: Iron-deficiency anemia is the most common type of anemia and occurs when there is a deficiency of iron in the body. The evidence in this case suggests iron deficiency as the likely cause of Harold's anemia.
2. Symptoms: The symptoms described, such as fatigue, weakness, and shortness of breath, are commonly associated with iron-deficiency anemia. Iron is essential for the production of hemoglobin, the protein in red blood cells that carries oxygen. When there is insufficient iron, the body cannot produce enough healthy red blood cells to adequately deliver oxygen to tissues and organs.
3. Risk Factors: The presence of risk factors associated with iron deficiency further supports this conclusion. Harold's vegetarian diet, which may lack adequate sources of iron, increases the risk of iron deficiency. Additionally, his recent weight loss surgery can contribute to iron malabsorption and reduced iron stores.
4. Laboratory Findings: The laboratory results showing low hemoglobin and hematocrit levels, along with low serum iron and ferritin levels, are consistent with iron-deficiency anemia. Hemoglobin and hematocrit reflect the concentration and volume of red blood cells, while low serum iron and ferritin levels indicate depleted iron stores.
Considering the combination of symptoms, risk factors, and laboratory findings, it is likely that Harold has iron-deficiency anemia. However, a comprehensive evaluation by a healthcare professional, including further diagnostic tests, would be necessary for a definitive diagnosis and appropriate management of his condition.
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What could be a potential consequence of an organism failing to maintain homeostasis?
A. A lack of internal balance
B. The eventual death of the organism
c. Difficulty in carrying on metabolism
D. All of the above
Answers
You welcome
Answer:
A
Explanation:
some prokaryotes are poisoned if they come into contact with oxygen. where might you find one? a. in a desert b. in the digestive tract of a cow c. on a polar ice cap d. in a body of water
Answers
Some prokaryotes are poisoned if they come into contact with oxygen. It is find in the digestive tract of a cow. It is a protective structure that allows them to survive in both hypo-osmotic and hyper conditions.
Some bacteria can survive even harsh conditions by producing an endospore. Prokaryotes exchange any genetic material with other organisms during the process of conjugation which build bridges between organisms in order to exchange material with each other.
As we know that, obligate anaerobes referred to all prokaryotes live in the presence of oxygen that are strict anaerobes and it cannot survive without oxygen. While facultative anaerobes organisms that referred to survive in the presence of oxygen, but can also thrive under anaerobic conditions.
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an inanimate object that may be contaminated with a pathogen is called a ___
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An inanimate object that may be contaminated with a pathogen is called a fomite.
An inanimate object that may be contaminated with a pathogen is called a fomite. Fomites can include any type of object or surface that can harbor and potentially spread infectious agents, such as viruses, bacteria, or fungi. Examples of fomites can include doorknobs, countertops, clothing, utensils, medical equipment, and more. It is important to regularly clean and disinfect fomites to help prevent the spread of infectious diseases.
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Explain why you think blood vessel radius can have a larger effect on the body than changes in blood vessel length (use the blood flow equation).
Answers
Here is your Answer:-
✓ While the flow rate is proportional to the length, the flow rate is proportional to the fourth power of the radius.
Blood vessel da\iameter affects the blood pressure in body because it creates vasoconstriction and vasodilation, hence blood vessel radius has a larger effect on the body.
What is the effect of blood vessel radius in the body?Blood flow increases considerably when the radius of the vessel lumen grows (a process known as vasodilation), and vice versa.
Vasodilation causes the blood vessel width to increase, making it easier for the heart to pump blood into it. However, such a blood artery has lower blood pressure than a smaller diameter or vasoconstriction blood channel.
Arterioles have the greatest increase in resistance and the greatest drop in blood pressure. Arteriole constriction increases resistance, resulting in a drop in blood flow to downstream capillaries and a bigger decrease in blood pressure.
Therefore due to blood pressure in body blood vessel radius affects larger.
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Which of the following effects is least likely to be as a result of deforestation?
A: A greater risk of flooding.
B: An increase in biodiversity.
C: An increase in soil erosion.
D: An increase in the level of carbon dioxide in the atmosphere.
Answers
The effect that is least likely to be a result of deforestation is an increase in biodiversity. That is option B.
Deforestation is a practice that encourages the clearing of forests for other purposes such as agricultural croplands, urbanization, or mining activities.
This practice needs to be avoided because:
posses a greater risk of flooding as deforestation erodes the soil.they provide a protective cover for the soil against the action of wind and rain thereby preventing soil erosion.the level of carbon dioxide in the atmosphere decreases as it is cleared by trees during photosynthesis.But deforestation leads to a decrease in biodiversity instead of an increase.
Deforestation can lead to biodiversity loss. This occurs when animal species that live in the trees no longer have their habitat, cannot relocate, and therefore become extinct.
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animal viruses often have glycoprotein spikes on their capsids or envelopes. group of answer choices true false
Answers
According to the research, the statement is true, animal viruses often have glycoprotein spikes on their capsids or envelopes.
What are viruses?It is an obligate intracellular parasite, small in size, made up of nucleic acid and protein.
They have a layer or envelope of lipids and glycoproteins, which they obtain from the cell membrane of their host cells, and which is used to inject genetic material into the cell.
Therefore, we can conclude that according to the research, the statement is true, animal viruses often have glycoprotein spikes on their capsids or envelopes.
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Define mitochondria and their function
Answers
Answer:
Mitonchondria is an organelle where aerobic respiration take place.
Answer:
mitochondria are sac like organelles present in the cytoplasm of a cell and they are sites for respiration
Explanation:
A child plays with a black ball. Explain why the ball looks black
Answers
The ball looks black because it is absorbing all the visible light that is hitting it and reflecting none of it back.
Black ball is a term used in various sports, games, and competitive activities to describe a situation where a player or team has been excluded or disqualified from further participation. All objects absorb some wavelengths of light and reflect others, and the combination of reflected wavelengths is what gives the object its color. In the case of a black ball, it is absorbing all the visible wavelengths and therefore reflecting none, giving it the appearance of being black.This is because black objects are good absorbers and poor reflectors of light. As a result, the black ball appears black when viewed by the eye.
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Opsins are proteins that are found in the light-sensing cells in the human eye. Different opsin proteins are sensitive to different colors of light. The instructions for creating the type of opsin sensitive to red light are found on a gene known as OPN1LW, which is on the X chromosome. A genetic mutation in the OPN1LW gene can lead to a form of color blindness that affects a person's ability to detect red light. However, women have two copies of the X chromosome, and they have normal color vision if only one copy contains the mutation. Why do women who carry one copy of the mutated gene still have normal color vision?
Answers
Answer:
Women who carry one copy of the mutated gene still have normal color vision because they have another copy, which is not mutated, in the other X chromosome that will be the dominant one. As a result, the women are carriers of the mutated gene but not color blind.
Explanation:
Colorblindness is a sex-linked mutation. A woman has two X chromosomes, while a man has one X chromosome and one Y chromosome. The mutated gene that causes color blindness is on the X chromosome, and it is OPN1LW. So if a woman has one mutated OPN1LW in one of her two X chromosomes, the OPN1LW gene in the other X chromosome will be the dominant one stopping the woman from being colorblind.
In the case of men, as they only have one X chromosome, if there is a mutation on the OPN1LW in the X chromosome, the men will be colorblind because there is no extra copy of the gene, as it is in women.
Which best describes a scientific theory?
O A. The conclusion of a single scientist about a hypothesis
O B. An educated guess about an aspect of nature
c. An idea that is supported by many different experiments
D. A hypothesis that is proven true with an experiment
SUBMIT
Answers
Answer: C. An idea that is supported by many different experiments.
Explanation:
A scientific theory is a well-substantiated explanation of some aspect of the natural world that is based on empirical observations and evidence gathered through the scientific method. It is supported by many different experiments, observations, and data from a variety of sources, and has been extensively tested and validated. Unlike a hypothesis, which is a tentative explanation that is subject to testing and refinement, a scientific theory represents a comprehensive and coherent explanation of a phenomenon that has been repeatedly tested and confirmed over time. It is a cornerstone of scientific understanding and provides a framework for further research and inquiry.
identify the four main components of all eukaryotic membranes.
Answers
Answer:
nucleus, golgi complex, cell membrane, and mitochondria
Explanation:
Answer:
nucleus, golgi complex, cell membrane, and mitochondria
Explanation:
just better
Explain the difference between exponential growth models and logistic growth models and insert a picture of each model.
Answers
Answer:
When the per capita rate of increase ( r) takes the same positive value regardless of the population size, then we get exponential growth. When the per capita rate of increase ( r) decreases as the population increases towards a maximum limit, then we get logistic growth.
Explanation:
Exponential population growth: When resources are unlimited, populations exhibit exponential growth, resulting in a J-shaped curve. When resources are limited, populations exhibit logistic growth. In logistic growth, population expansion decreases as resources become scarce.
Describe how the shape of the periodic table is different from the shape of the most charts and tables you see.
Answers
Answer:
most charts are all in exact order, but the periodic table's has sections jumping around. also, most charts are rectangular or square, but the periodic table has different shapes sticking out.
The shape of the periodic table is different from other charts and tables because the periodic table is constructed according to the properties of elements.
What is a periodic table?The periodic table is the table that contains all the chemical elements. The elements are arranged in order of their chemical properties. The periodic table is castle shaped.
Thus, the shapes of the periodic table are unique because the elements are arranged according to their properties.
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