This cartoon now includes the locations of three genes. The positions have only been noted on one chromatid for simplicity's sake. Genes a and b would cross across with the least frequency (closest together on chromosome)
One of a chromosome's two identical halves that has undergone replication in order to facilitate cell division is referred to as a chromatid. The centromere, a constrictive area of the chromosome, serves as the connection between the two "sister" chromatids.
During meiosis and mitosis, chromatin fibers are used to make chromatids. When DNA is wrapped sequentially around skeletal proteins, the structure is known as a nucleosome and is referred to as chromatin. Chromatin fibers are even more densely wrapped nucleosomes. DNA can be compressed by chromatin to fit into the nucleus of a cell. Chromosomes are made of threads of condensed chromatin.
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gametes are blank cells
diploids
haploids
Be able to discuss some solutions or strategies to reduce the impact of the above pollutants on ecosystems.
An important stressor for natural ecosystems is the atmospheric deposition of nitrogen and sulfur brought on by air pollution.
What is impact of air pollution on ecosystem?There are numerous ways in which air pollution can harm trees and crops.
Reduced development and survival of tree seedlings, decreased yields of agricultural crops and commercial forests, and increased vulnerability of plants to disease, pests, and other environmental pressures.
Which frequently causes the acidification and eutrophication of both terrestrial and aquatic ecosystems.
Therefore, air pollution cause detrimental effect on ecosystem.
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Which two systems are the kidney, bladder, colon, stomach, and small intestines associated with?
Answer:
The digestive and excretory systems
Explanation:
during bacterial cell division, the single cell is separated into two cells by… nucleosomes. spindle fibers. aneuploidy. centrosomes. pinching of the plasma membrane.
During bacterial cell division, the single cell is separated into two cells by pinching of the plasma membrane.
A bacterial cell divides by a process of mitosis referred to as binary fission. In the process. the components of the bacterial cell replicated themselves.
In the end, the cell membrane pinches from the center in order to make two new daughter cells. This pinching of the plasma membrane allows equal distribution of components in the two daughter cells.
As binary fission is a mitotic cell division, the daughter cells produced are exactly similar to the parent cell and have the same genetic material.
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Many people are interested in organic foods as a healthier alternative to conventional foods. However, they often wish that organic foods were cheaper and more readily available. Research the political, social, and environmental consequences of organic agriculture. Is organic agriculture sustainable? In your response, be sure to include the environmental impacts of both traditional and organic agriculture.
As you look up information from books or websites, be sure to list your sources.
Organic agriculture is sustainable in small land extensions because it maximizes the care of crops, and it involves benefits in terms of environmental and social outcomes associated with the generation of healthy foods.
What is organic agriculture?Organic agriculture is a suitable way to obtain food in small land extensions, which represents an uncontrollable manner to obtain food in larger lands for farming purposes.
In consequence, organic agriculture contributes to food security in some countries, which is associated with benefits to the environment because it reduces the amount of required greenhouse gases and also beneficial social outcomes by providing healthy foods to the individuals who are living in these regions.
Therefore, with this data, we can see that organic agriculture may raise a series of benefits both in terms of environmental and social outcomes and they provide healthy foods to individuals who are sustained by small land extensions.
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in order to use amino acids to make glucose, fat, or atp, the nitrogen has to be removed first. what is that process called, and where does it occur? deamination, occurs in the stomach denaturation, occurs in the liver and kidneys deamination, occurs in the liver and kidneys denaturation, occurs in the stomach
Answer:
deamination, occurs in the liver and kidneys
Explanation:
hope this helps :)
Taxol is an anticancer drug extracted from the pacific yew tree that binds to microtubules and prevents their depolymerization. Which phase of mitosis or cell division would be inhibited by treatment with taxol?.
The actual mechanism of taxol is the disruption of microtubule shortening, which occurs during anaphase as the sister chromatids are pulled to opposite poles.
The division of the duplicated genetic material contained in a parent cell's nucleus into two identical daughter cells occurs during the fourth stage of mitosis, known as anaphase. The replicated chromosomes, known as sister chromatids, are aligned on the equatorial plane of the cell just prior to the onset of anaphase. Sister chromatids are made up of two identical DNA copies linked together at a location known as the centromere.
Every chromosomal pair splits into two identical, independent chromosomes during anaphase. The mitotic spindle, a component of the cell, divides the chromosomes. A chromosome is connected to one end of the mitotic spindle, which is made up of several long proteins called microtubules, and a cell pole to the other.
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In the periodic table ,helium,neon,and argon are commonly called noble gases because they;
2. Explore how the different molecules interact with visible and infrared light. Do you find any patterns?
Greenhouse gases are the gases which interact with the visible and infrared light by absorbing the radiation which results into vibration of molecules and thus production of heat.
What are greenhouse gases?Greenhouse gases are carbon dioxide, methane, chlorofluorocarbons, nitrous oxides, and water vapor. Carbon dioxide has shown a warming effect helps to stabilize the atmosphere of Earth.
Molecules of carbon dioxide can absorb energy from infrared radiations from a photon. The energy from the absorption of photon causes the carbon dioxide molecule to vibrate.
When the molecules absorb infrared radiation there is an occurrence of transitions from a ground vibrational state to an excited vibrational state which causes gain of energy which is released later in the form of heat energy.
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what is the main function of the tata-binding protein? choose one: a. to inhibit transcription until transcriptional activators bind b. to promote initiation of transcription c. to help initiate dna replication d. to inhibit dna replication until s phase
The TBP gene codes for the production of a protein known as the TATA box binding protein. This protein is found in cells and tissues all over the body and plays an important role in regulating the activity of most genes.
TATA-binding protein is an RNA polymerase II subunit that aids in transcription initiation. When the TATA-binding protein binds to the TATA sequence in DNA, the DNA helix bends. TATA box-binding protein (TBP) is responsible for nucleating transcription initiation machinery assembly in eukaryotes. We show that a TFIID complex containing TBP is required for transcription even at promoters lacking a TATA box. The enzyme RNA polymerase is in charge of unwinding the two strands of DNA.
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Which is NOT a class in the Phylum Annelida?
A. Class Hexactinellida
B. Class Hirudinea
C. Class Polychaeta
D. Class Oligochaeta
Hexactinellida is not a class in the phyllum annelida , Hirudinea, polychaeta and oligochaeta are the classes of phylum annelida.
What is annelida and what are its classes?Annelida is the phylum of the animal world which includes segmented animals like worm, leeches, and many more.Annelida group is characterized by the presence of body cavity or coelom.Annelids have organ system level of organization and they respire through body surface.Annelida is the phylum Hirudinea, polychaeta, and oligochaeta , and hexactinellida is not a class of phylum annelida.Further annelida also have well developed circulatory and digestive system.To know more about annelida visit:
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One of your classmates became hot and removed a sweatshirt. You advised against this due to what you learned in the study of the scientific method.
Explain why the lab partner would not want the sweatshirt removed.
sweatshirt would not be removed in the lab because Protection of the skin and personal clothing from small chemical splashes and incidental contact.
Why are white coats now worn by everyone?In order to set themselves apart from dishonest healthcare providers who tried to peddle miracle cures and did not follow conventional, evidence-based medicine, trained surgeons and physicians started wearing white lab coats in the late 1800s. Physicians soon followed suit.
A sweat shirt will serve as a detachable barrier in the event of a spill or splash involving dangerous materials. Stops and restricts the spread of contamination outside of a sterile environment.
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Although it typically does not result in significant problems, skin infections can occasionally happen. On your skin, your body naturally creates yeast, and that yeast loves wet, sweaty clothing. Due to a buildup of yeast, wearing the same workout clothing repeatedly without washing them might cause skin irritation.
Can Wearing a sweaty Shirt Make you Sick?No, being outside in the cold, feeling cold, or wearing wet clothes doesn't make you more likely to get the flu or a cold. This is one of the beliefs that actually exist concerning both the common cold and the flu, but numerous studies have shown that this is untrue. Chafing can occur anyplace on your body where there is frequent friction. Although it typically results in a red rash, it can also cause edema and bleeding. Even if you're just walking around after your workout at the gym, wearing workout clothing saturated in sweat is a horrible formula for chafing.Wet clothing can remove a lot of body heat from the body due to the high specific heat of water.
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control measures for forest fires/ how do we prevent forest fires/ Preventive measures for forest fires?
We can prevent forest fires accomplished by constructing firebreaks in the form of tiny clearings or ditches in the forest.
There are several reasons why controlled burns are started. A planned burn can help stop a devastating wildfire by clearing a forest of dead leaves, tree limbs, and other debris. In addition to eliminating exotic species, controlled fires can lower insect populations. Fire also has a revitalizing effect. Typically, a fire will only continue to grow if there is a steady supply of fuel (dry vegetation) along its path. Because of this, the best strategy to contain a forest fire is to stop it from spreading.
Understanding wildfire threats caused by natural sources is essential for wildfire prevention. Foresters should take into account present and impending weather conditions and their hazard to forests while planning routine activities and considering how to stop a wildfire from developing. When it's too hot or windy, sparks from cars or equipment may ignite dry grass or leaves and spread over wide areas because of the wind, starting wildfires.
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5. In a scientific investigation, a scientist is testing to see
the effect of light intensity (strength of the light) on
plant growth. During her investigation, the scientist
ensures that all subject plants get the same amount of
water, are planted in the same type of soil and placed
in a lab room at the same temperature. Each of these
factors are an example of a
A) control group
B) experimental group
C) control variable
D) independent variable
Answer: C control variable
Explanation: I say control variable because it is what is being kept the same during the investigation. It is not of primary concern in the experimental outcome because it is all kept the same in each of the subject plants.
:)
(THIS IS WHAT I THINK!!!)
Which of the following is NOT an example of how bacteria aid in the nitrogen cycle?
+
OA) nitrogen fixation
OB) breaking down the tissue of dead organisms
OC) changing nitrogen compounds into atmospheric nitrogen
OD) infecting tissue
Answer:
D. Infecting tissue
what molecule or molecules other than the mrna, if any, are present at the e site or would have just left the e site? give the type and number of any other molecules
Molecules other than the mrna present at the e site are trna molecules have just left the e site.
small rna molecule transfer rna, often known as trna, is essential for the production of proteins. The messenger RNA (mRNA) molecule and the expanding chain of amino acids that make up a protein are connected by transfer RNA, which is also known as an adapter. every time an amino acid is added to the chain, a particular trna mates with the corresponding sequence on the mrna molecule to make sure the correct amino acid is added to the protein being created. every time an amino acid is added to the chain, a particular trna mates with the corresponding sequence on the mrna molecule to make sure the correct amino acid is added to the protein being created.
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if an animal cell suddenly loses the ability to produce gtp, what will most likely happen to its signaling system
if an animal cell suddenly loses the ability to produce GTP. It would not be able to activate and inactivate the G protein on the cytoplasmic side of the plasma membrane.
G proteins, sometimes referred to as guanine nucleotide-binding proteins, are a family of proteins that function as molecular switches within cells, relaying signals from a range of stimuli outside a cell to its interior.
Their ability to bind to and hydrolyze guanosine triphosphate (GTP) to guanosine diphosphate is governed by several different variables (GDP). They are "on" when they are bound to GTP and "off" when they are bound to GDP. The wider class of enzymes known as GTPases includes G proteins.
Thus, when the cell will not produce GTP then these G protein receptors are not activated and thus signalling will not be carried further.
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taxol, a drug approved for the treatment of breast cancer, prevents depolymerization of microtubules. with what cellular function might taxol interfere?\
The cellular function with which taxol might interfere with the most is C. chromosome movements in cell division.
Microtubules act as a critical factors for the cell divisions that allow cancer to grow and spread.
The alignment and splitting of the chromosomes occur due to the microtubules.
The organization of the microtubule is affected due to the drug referred to as taxol.
Hence, the drug taxol will restrict the movement of chromosomes during the process of cell division.
Although a part of your question is missing, you might be referring to this question:
taxol, a drug approved for the treatment of breast cancer, prevents the depolymerization of microtubules. with what cellular function might taxol interfere?
A. maintaining cell shape
B. cell motility (cilia or flagella)
C. chromosome movements in cell division
D. cell division (cleavage furrow formation)
E. cytoplasmic streaming
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nitrogen can be made available by rotating or interplanting beans or other legumes with other crops so that is no longer needed to enrich the organic nature of soils.
Nitrogen can be made available by rotating or interplanting beans or other legumes with other crops so that Fertilizer is no longer needed to enrich the organic nature of soils.
Bacteria that fix nitrogen and encourage plant growth are undoubtedly the biotechnology tool with the most potential to increase agricultural productivity in the near future. Legume crops, such as beans, peanuts, and soy, can fix nitrogen from the air and thrive on nitrogen-deficient soils. These bacteria have been believed to be the most significant agents for promoting plant growth because they produce phytohormones and fix nitrogen. They require the aid of Rhizobium bacteria to do this. The development of nodules on the roots of leguminous plants is induced by these unique bacteria.
The complete question is :
Nitrogen can be made available by rotating or interplanting beans or other legumes with other crops so that _______ is no longer needed to enrich the organic nature of soils.
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Why does the thermosphere have the highest temperature of all the
atmosphere layers?
O A. It has mostly nitrogen molecules.
• B. The sun's radiation strikes it first.
•
C. It is the thickest layer.
O D. It contains the stratosphere.
Answer:
bc it's named thermosphere
State two (2) human activities that alter the water cycle and explain HOW they affect this cycle.
By building dams to store water and by taking water for domestic, commercial, and agricultural uses, humans actively alter the dynamics of the water cycle.
What human activities affecting water cycle?There is a lot of evidence to suggest that human activity is the cause of local and global water cycle disturbances and alterations.
The damming of rivers for hydroelectricity, the use of water for farming, the clearing of forests, and the burning of fossil fuels are just a few human activities that can have an impact on the water cycle.
Therefore, human activities that alter the water cycle.
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Why do you think we know very little about the mantle
The mantle is difficult to study directly because it is deep within the Earth and inaccessible to most forms of observation.
What is mantle?The mantle is the thick layer of the Earth that lies between the crust and the core. It is the largest layer of the Earth, comprising about 84% of its volume, and is about 2,900 km (1,800 miles) thick. The mantle is divided into two main parts: the upper mantle and the lower mantle. The upper mantle is the part of the mantle that is closest to the crust, while the lower mantle is the part of the mantle that is closest to the core.
The mantle is composed mainly of solid rock, mostly of the minerals olivine and pyroxene, which are rich in iron, magnesium, and silicon. These minerals have a very high melting point, which means that the mantle is solid despite the high temperatures. The temperature of the mantle increases with depth, and it is estimated to be around 4,000 degrees Celsius at the boundary with the core.
The upper mantle is the source of heat that drives plate tectonics, the process by which the Earth's crust is constantly being moved and reshaped. The heat from the mantle causes the rock to become less dense and to rise, creating a current of hot rock that flows upward. As this hot rock reaches the surface, it cools and sinks back down into the mantle, creating a continuous cycle of movement. This movement causes the Earth's crust to break apart and form new crust, and it is responsible for the creation of earthquakes, volcanoes, and mountain ranges.
The lower mantle is the source of magma that leads to volcanic activity. Magma is a mixture of molten rock, ash, and gas that forms when the rock in the upper mantle melts. When magma reaches the surface, it erupts as lava and forms volcanoes. The lower mantle also plays a role in the formation of diamonds, as the high pressure and temperature within this layer causes carbon atoms to be squeezed together and form diamonds which are then brought to the surface through volcanic eruptions.
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The idea that layers of sediment are always deposited horizontally is called
Answer:
The principle of original horizontality
Answer: The principle of original horizontality
why micro organisms so important in the production of medicines? Describe two different medicines that rely on technology in their production.
Answer:
chemical and heydrogen
Flower petals protect tiny, more delicate parts.
True False (SCIENCE)
Answer: Yes, it’s true
Explanation:
The flower petals protect the pistil and the stamen
What is the function of middle ear
The primary function of the middle ear is to offset the decrease in acoustic energy that would occur if the low-impedance ear canal air directly contacted the high-impedance cochlear fluid.
Explanation:When sound waves enter your ear canal, your tympanic membrane (eardrum) vibrates. This vibration passes on to three tiny bones (ossicles) in your middle ear. The middle ear transmits sound waves to the inner ear with the help of three tiny bones called stapes, malleus, and incus. The middle ear includes three small bones — the hammer (malleus), anvil (incus) and stirrup (stapes). The middle ear is separated from your external ear by the eardrum and connected to the back of your nose and throat by a narrow passageway called the eustachian tube. Also known as the tympanic cavity, the middle ear is an air-filled, membrane-lined space located between the ear canal and the Eustachian tube, cochlea, and auditory nerve. The eardrum separates this space from the ear canal.
in an animal cell, centrosomes resemble what part of a city?
Answer: A centrosome is a cellular structure involved in the process of cell division.
Missing: n city?
Explanation:
A dramatization of one part of Thomas Putnam’s backstory that has a beginning,
middle and end.
Putnam and Francis Nurse, another well-known resident of Salem, had a protracted property dispute, according to the play's opening scene. We discover that “this quarrel rose to the proportions of a fight.”
What is the behavior of Thomas Putnam’s?Thomas Putnam, a rapacious man, exhorts Reverend Paris to be courageous and confront the witches present in their midst. He accuses those whose property he wants to own of using his daughter.
Miller and the majority of historians thought that these kinds of avaricious, self-centered goals were the root of many of the charges of witchcraft.
Therefore, A dramatization of one part of Thomas Putnam’s backstory that has a beginning, middle and end.
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Which of the following best describes a density-independent factor that controls population size?
A Competition for resources like food and water
B Infectious disease transmission
C Occurrences of droughts and flooding
D Reduced availability of habitat
Occurrences of droughts and flooding best describes a density-independent factor that controls population size.
Density-independent limiting factors often take the form of natural disasters, severe weather, and pollution. for example if we take an example of disaster by fire in the forest . It will most likely to kill the deer's. So , an individual chance of deer that will die in the fore is not dependent on the number of deer's present in the forest .
Thus , density-independent factors include food or nutrient limitation, pollutants in the environment, and climate extremes, including seasonal cycles such as monsoons. Wildfire is nonliving, and most density-independent limiting factors fall in this category.
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A common psychological effect of alcohol intake is
Anxiety
Enhanced memory
Reduced inhibition
Psychosis
Answer: Reduced inhibition
Explanation: Its not the others, not A, definitely not B, and not D. C is correct because it means you're less self-conscious.
Reduced Inhibition is a frequent psychological consequence of alcohol use. This is because drinking alcohol has an impact on the prefrontal cortex, a part of the brain that controls impulses, planning, and decision-making.
What is people's inclination towards ?People are more inclined to act impulsively and take risks when this part of their brain is damaged. Because of this, people may have decreased inhibitions and may act and make decisions that they wouldn't ordinarily make while sober.
Anxiety can also be caused by alcohol. This is so because alcohol is a depressant and can lead to depressive and gloomy moods. Alcohol's depressive effects can often make individuals feel worried and overburdened.
This could make you feel anxious, scared, or panicked. In conclusion, alcohol result in psychosis. This is due to the fact that alcohol usage can alter the chemical makeup of the brain, which can result in hallucinations, delusions, and other psychotic symptoms.
Alcohol may also make individuals paranoid and make it difficult for them to discriminate between their own ideas and experiences and reality. This can result in psychosis, a serious mental illness.
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