2. true or false? a liver cell and a muscle cell will have different patterns of methylation and acetylation
Answers
true a liver cell and a muscle cell will have different patterns of methylation and acetylation.
Why do muscle cells and fat cells differ from one another?What distinguishes a liver cell from a skin or muscle cell, then? The way each cell uses its genome holds the key to the solution. In other words, cellular morphology (form) and function are determined by the specific combination of genes that are turned on (expressed) or turned off (repressed).
Do muscle and liver cells exhibit the same gene expression patterns?The identical genes will not be transcribed by liver cells and muscle cells. When they do, They would have the exact same morphological makeup and execute the exact same job. The main way that different genes and transcription rates contribute to cell differentiation is through their respective levels of transcription.
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Related Questions
When it comes to hair texture, human hair can be very strait, very curly, or nearly anywhere in between (slightly wavy, very wavy etc.) Scientists have discovered several different gene pairs at several different chromosomal locations that influence hair texture in humans, therefore human hair texture can be described as a _______ trait. In addition to the many gene pairs that can influence a person's hair texture, the environment can influence a person's hair texture as well. For example a person whose hair is slightly wavy on a dry day, might be more curly or frizzy hair on a humid day. Since hair texture is influenced by the environment as well as genes it is also considered a ___________ trait.
Answers
Answer:
polygenic; multifactorial
Explanation:
A polygenic trait can be defined as any phenotypic feature of an organism that is controlled by the action of several polymorphic genes which interact with the environment to produce a given phenotype (i.e., they are multifactorial traits). The polygenic traits are controlled by many genes localized in different regions of the genome (i.e., loci) and exhibit a continuous range of variation, where each genomic region associated with the variation of the trait is called Quantitative Trait Locus (QTL). Some examples of polygenic/quantitative traits include, among others, height, hair color, weight, blood pressure, etc.
An animal cell is dividing. Which of the following would not be seen during this process?
cleavage furrow
cytokinesis
cell plate
centrioles
Answers
Answer:
cell plate
Explanation:
If the tube is permeable to starch, which way would the starch move?
[ into the tube / out of tube]
8. If the tube is permeable to iodine, which way would the iodine move?
[ into the tube / out of tube ]
9. If the tube is permeable to iodine, what color would you expect the contents to change? [ orange / purple / no change ]
What about the solution in the beaker? [ orange / purple / no change ]
10. If the tube is permeable to starch, what color would you expect it to change? [ orange / purple / no change ]
11. What about the solution in the beaker?
[ orange / purple / no change ]
Answers
If the tube is permeable to starch, the starch would move out of the tube and into the surrounding solution in the beaker. This is because the concentration gradient for starch is higher inside the tube than outside, so the starch will diffuse down its concentration gradient until equilibrium is reached.
8. If the tube is permeable to iodine, the iodine would move into the tube and react with any starch present to form a purple-blue complex. This is because iodine is a starch indicator and will turn blue in the presence of starch. So, if the tube is permeable to iodine, we would expect the contents of the tube to turn purple.
9. As for the solution in the beaker, if the tube is permeable to iodine, we would also expect the surrounding solution to turn purple as iodine diffuses out of the tube and reacts with any starch present in the solution.
10. If the tube is permeable to starch, we would expect it to change color if iodine is added. As mentioned earlier, iodine reacts with starch to form a purple-blue complex, so if iodine is added to the tube, any starch present would turn purple.
11. Lastly, if the tube is permeable to starch, but no iodine is added, there would be no change in color for both the contents of the tube and the surrounding solution in the beaker. This is because starch does not have any inherent color or reaction with water, and so would remain unchanged unless an indicator like iodine is added.
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What type of scientist would be the best qualified to perform genetic engineering to pro- duce seed that are more productive in agriculture? A. biochemist B. geologist C. molecular biologist D. paleontologist
Answers
The type of scientist best qualified to perform genetic engineering to produce more productive seeds in agriculture would be a molecular biologist, the correct option is C.
Molecular biologists specialize in studying the structure, function, and interactions of molecules within biological systems, including DNA and genes. Genetic engineering involves manipulating the genetic material of organisms, which requires a deep understanding of molecular biology principles.
Molecular biologists have the expertise to identify and isolate specific genes responsible for desired traits in crop plants, such as increased productivity or resistance to pests or diseases. They can then modify or introduce these genes into target plants to achieve the desired outcomes, the correct option is C.
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what part of the cell manages and controls all the cell functions in a eukaryotic cell
Answers
The nucleus manages and controls all of the cell functions in a eukaryotic cells.
Eukaryotic cells are complex structures that are found in plants, animals, and other multicellular organisms.
The nucleus is a specialized organelle that is surrounded by a double membrane called the nuclear envelope. This membrane helps to protect the DNA and other genetic material that is contained within the nucleus, which is essential for the proper functioning of the cell.
The nucleus is responsible for controlling many of the cell's functions, including DNA replication, transcription, and translation. These processes are essential for cell growth and division, as well as for the production of proteins and other cellular components.
In addition to controlling the cell's functions, the nucleus also plays an important role in regulating gene expression. This is the process by which the information contained in the DNA is used to produce proteins and other cellular components. By regulating gene expression, the nucleus can control the development and specialization of different cell types, which is essential for the proper functioning of complex organisms.
Overall, the nucleus is the part of the eukaryotic cell that manages and controls all of the cell functions. This organelle is responsible for controlling DNA replication, transcription, and translation, regulating gene expression, and playing a critical role in cell growth and division. Without a functional nucleus, eukaryotic cells would not be able to function properly, and complex organisms would not be able to develop and thrive.
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what is a photon. A. part of a ribosome B. A light particle C. A carbon dioxide molecule D. Part of a chloroplast
Answers
Help due today Please
Answers
The amount of biomass that is produced in an area during a given time would be referred to as?
Answers
Answer:
Explanation:
The amount of biomass that is produced in an area during a given time is referred to as primary production/productivity.
What is biomass?Renewable organic material obtained from plant and animal sources if referred to as biomass.Primary productivity is the production of organic compounds through the process of photosynthesis, with the help of solar energy.Primary productivity is measured as biomass produced per unit area over a give time periodIt is usually expressed either in weight or energy.There are two ways to express primary productivity:a) Gross Primary Productivity(GPP): Takes into account the total energy produced in the ecosystem.
b) Net primary Productivity(NPP): Takes into account, solely the energy used by the producer for respiration.
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which energy conversion takes place in some plant cells, but never in animal cells?
Answers
blood platelets
a. form from lymphoid stem cells
b. release serotonin
c. number from 3,500 to 10,500 per microliter blood
d. release histamine
Answers
Blood platelets release serotonin and histamine. The correct options are b and d.
Blood platelets, also known as thrombocytes, are small, disc-shaped cell fragments that are involved in blood clotting (hemostasis) and wound healing. They are formed from large bone marrow cells called megakaryocytes.
Platelets circulate in the bloodstream in an inactive state, but when they come into contact with a damaged blood vessel or tissue, they become activated and release a variety of substances that promote blood clotting and wound healing.
One of the substances released by platelets is serotonin, a neurotransmitter that constricts blood vessels and promotes blood clotting. Serotonin helps to limit blood loss at the site of injury by promoting the formation of a platelet plug, which consists of aggregated platelets and helps to seal the damaged blood vessel.
Another substance released by platelets is histamine, a compound that causes blood vessels to dilate and become more permeable. Histamine helps to increase blood flow to the site of injury, allowing immune cells and other components of the blood to migrate to the area and initiate the healing process.
The number of platelets in the blood can vary depending on a variety of factors, such as age, sex, and overall health. The normal range for platelet count is between 150,000 and 450,000 platelets per microliter of blood. Platelet counts that are too low (thrombocytopenia) or too high (thrombocytosis) can increase the risk of bleeding or clotting disorders.
In summary, blood platelets play a critical role in the body's response to injury and help to promote blood clotting and wound healing. They release a variety of substances, including serotonin and histamine, that help to limit blood loss and increase blood flow to the site of injury.
So, b. and d. are the correct options.
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How are the functions of the endoplasmic reticulum and the Golgi apparatus related? A. Golgi apparatus receives proteins and other materials from the endoplasmic reticulum, packages them, and distributes them to vacuoles. B. The nucleus directs the cell's activity, including any transfer of material between the endoplasmic reticulum and the Golgi apparatus. C. Proteins and other substances made in the endoplasmic reticulum are stored, packaged, and distributed by the Golgi apparatus. D. In order to function, both plant and animal cells require an endoplasmic reticulum and Golgi apparatus.
Answers
Answer:
Proteins and other substances made in the endoplasmic reticulum are stored, packaged, and distributed by the Golgi apparatus
Which of the following describes a scenario that would result in the phenotypic change shown in the graph?
A) A fish that has mouth parts adapted to eat moderately sized prey is introduced into a lake in which there are only large and small prey.
B) A population of mice live on the ground and in short trees. An invasive, tree-dwelling snake that preys on the mice is introduced into the area.
C) Climate change-induced warming of arctic tundra reduces average snow cover that lighter-colored arctic
foxes rely on for camouflage. Darker-colored arctic foxes are better suited to the exposed moss and grass habitat.
D) House sparrows that lay smaller-than-average clutches of eggs produce fewer viable offspring, while larger-than-average clutches of eggs result in malnourished chicks that have a higher mortality.
Answers
Answer:
C) Climate change-induced warming of arctic tundra reduces average snow cover that lighter-colored arctic foxes rely on for camouflage. Darker-colored arctic foxes are better suited to the exposed moss and grass habitat.
The graph shows how 'climate change reduces snow cover that lighter-colored arctic foxes rely on for camouflage, whereas darker arctic foxes are better suited'.
What is adaptation?Adaptation refers to the emergence of phenotypic characteristics to face environmental factors.
Adaptations are evolutionary responses to challenging environmental conditions.Adaptations are fundamental during environmental change (e.g., (climate change).In conclusion, the graph shows how 'climate change reduces snow cover that lighter-colored arctic foxes rely on for camouflage, whereas darker arctic foxes are better suited'.
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the thickness or diameter of the individual hair strand is referred to as hair _____.
Answers
Answer:
Hair texture refers to the thickness or diameter of the individual hair strand.
The thickness or diameter of the individual hair strand is referred to as hair "texture".Hair texture is an important characteristic of hair that influences how it looks, feels, and behaves. It is determined by the diameter of the individual hair strand, which can vary from fine to coarse.
Hair texture can be influenced by a variety of factors, including genetics, ethnicity, and environmental factors such as climate and hair care practices. It can also change over time due to aging or hormonal changes.
In addition to hair texture, hair is also characterized by its "porosity" which refers to how easily it can absorb and retain moisture, and its "elasticity" which refers to its ability to stretch and return to its original shape. Understanding these hair characteristics can help in choosing appropriate hair care products and styling techniques that work best for an individual's hair type.
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An organism with one dominant and one recessive gene for a trait is
Answers
Answer:
heterozygous
Organisms that have one dominant and one recessive allele, such as the Pp pea plants, are called heterozygous.
Explanation:
Age-related changes associated with the cardiac system include which conditions? select all that apply.
Answers
Age-related changes associated with the cardiac system includes the following conditions: (c) Endocardial fibrosis, and (d) Increased size of the left atrium.
Cardiac system is actually the cardiovascular system that functions to circulate blood to the whole body. It regulates the circulation of oxygenated blood from heart to the whole body and also the deoxygenated blood from the heart to the lungs.
Endocardial fibrosis is an endemic disease. In this disease thee occurs fibrosis in the apical endocardium of right ventricle, left ventricle, or both. A certain specific cause for the disease has not been identified. The disease can be caused due to infection from parasites, protozoans or due to inflammation.
The question is incomplete, the complete question is:
Age-related changes associated with the cardiac system include which conditions? Select all that apply.
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What do the bullhorn acacia
trees get from the acacia
ants?
Answers
Answer:
The plants provide food and accommodation in the form of food bodies and nectar as well as hollow thorns which can be used as nests. The ants return this favor by protecting the plants against herbivores
Explanation:
what function do RNA primers perform during DNA replication?
A. fill in gaps between groups of nucleotides on the lagging strand
B. provide sites for nucleotide addition along both strands
C. stabilize the DNA molecule to prevent breakage
D. correct errors made during DNA strand synthesis
Answers
Answer:
b.)
Explanation:
because RNA primer serves as a starting point for DNA polymerase
asthma is thought to be caused by: question 8 options: an autosomal recessive trait. autoimmunity. excessive use of antibiotics as a young child. interactions between genetic and environmental factors. next page
Answers
Asthma is thought to be caused by interactions between genetic and environmental factors.
What is asthma?Asthma is a chronic respiratory disease that affects the airways in the lungs. It causes the airways to become inflamed and narrowed, making it difficult to breathe. Asthma symptoms can include wheezing, coughing, chest tightness, and shortness of breath. These symptoms can range from mild to severe and may occur intermittently or persistently.
Asthma can be triggered by a variety of factors, including allergens (such as pollen, dust mites, and pet dander), irritants (such as smoke and pollution), exercise, cold air, and respiratory infections. While there is no cure for asthma, it can be managed with appropriate medical care, including medications such as bronchodilators and inhaled corticosteroids, as well as lifestyle modifications to avoid triggers and maintain overall health.
While specific genes may increase a person's susceptibility to asthma, environmental factors such as air pollution, respiratory infections, and allergens can trigger or worsen asthma symptoms. Additionally, lifestyle factors such as smoking and obesity may also contribute to the development of asthma.
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Is it possible for a primary consumer to be an omnivore or carnivore?
Answers
Answer:
yes is it Primary consumers are animals that eat primary producers; they are also called herbivores (plant-eaters). Secondary consumers eat primary consumers. They are carnivores (meat-eaters) and omnivores (animals that eat both animals and plants).Hope this helps!!Explanation:
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Endangered Species
Research an endangered species. Include an image of this species. Discuss the following questions: Approximately how many are left? When is the estimated time they will be extinct? What is the major cause of their future demise?
Vulnerable Species Research a vulnerable (threatened) species. Include an image of this species. How many are there left or have reappeared? What is being done to help them come back? What was the cause of their decline or demise?
Answers
a. Endangered Species: African Elephant: The African elephant is a majestic species that is facing extinction due to various factors. Approximately 415,000 African elephants remain in the wild, with their population declining by 60% over the last 75 years.
b. According to the International Union for Conservation of Nature (IUCN), the African elephant is classified as vulnerable, and it is estimated that if current trends continue, they could be extinct within the next few decades.
The major cause of their future demise is the illegal wildlife trade, particularly the demand for ivory. Poaching for ivory has led to the killing of tens of thousands of elephants each year, resulting in severe population declines in many African countries. In addition to poaching, habitat loss and fragmentation, human-wildlife conflict, and climate change also pose significant threats to African elephants.
To help African elephants, several conservation efforts are underway. These include anti-poaching measures, habitat restoration, and community-based conservation programs. In addition, many countries have banned the trade in ivory, although enforcement of these laws can be challenging.
Vulnerable Species: Snow Leopard: The snow leopard is a vulnerable species that is found in the high-altitude mountain ranges of Central and South Asia. Approximately 4,000 to 6,500 snow leopards remain in the wild, with their population declining by 20% over the last three decades. According to the IUCN, the snow leopard is classified as vulnerable due to habitat loss and fragmentation, poaching, and retaliatory killings by herders.
The major cause of their decline is habitat loss and fragmentation due to human activities such as mining, agriculture, and infrastructure development. In addition, poaching for their pelts and body parts is also a significant threat to snow leopards. Retaliatory killings by herders who lose their livestock to snow leopards are also a major cause of their decline.
To help snow leopards, several conservation efforts are underway. These include habitat restoration, anti-poaching measures, and community-based conservation programs. In addition, the Snow Leopard Trust and other organizations are working to educate local communities about the importance of snow leopards and to promote sustainable development practices that minimize negative impacts on snow leopard habitat.
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Milky way galaxy
our _______ ________ is part of the milky way galaxy looks like a trail of _______ _________ across the night sky. includes about_________ stars. spiral galaxy → our sun is located near one of the spiral arms
unusual galaxies
some galaxies appear to be _________ ,___________ ,or tearing stars away from each other → some large galaxies even appear to ''________ ’’ smaller ones. some violent galaxies emit way more energy than average.
Answers
Our solar system is part of the Milky Way galaxy, which looks like a trail of bright stars across the night sky. The Milky Way galaxy includes about 100 billion stars. It is a spiral galaxy, and our Sun is located near one of the spiral arms.
Some galaxies appear to be irregular, distorted, or tearing stars away from each other. Some large galaxies even appear to 'swallow' smaller ones. Some violent galaxies emit way more energy than average and are known as active galaxies. These include quasars and blazars, which are thought to be powered by supermassive black holes at their centers.
Our solar system orbits the center of the Milky Way galaxy at about 515,000 mph (828,000 kph). We're in one of the galaxy's four spiral arms.
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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:
What are ways to determine if a neuromotor exercise is too advanced for an individual?
a. The individual is unable to maintain proper posture during the activity.
b. Body segments are not in alignment.
c. Balance is lost.
d. All of these.
Answers
Maintaining proper posture, proper alignment of body segments, and balance are all essential components of neuromotor exercises.
If an individual is unable to maintain these components, it indicates that the exercise is too advanced for them. These signs could indicate that the individual is not ready for the exercise, lacks the necessary strength or coordination, or may need to perform simpler exercises to build up to more advanced movements. It is important to identify these signs to prevent injury or setbacks in the individual's progress.
The ways to determine if a neuromotor exercise is too advanced for an individual include all of the options mentioned, which are:
a. The individual is unable to maintain proper posture during the activity.
b. Body segments are not in alignment.
c. Balance is lost.
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How are soluble food molecules absorbed into the epithelial cells of the small intestine
Answers
Soluble food molecules are absorbed into the epithelial cells of the small intestine through the process of diffusion and active transport.
_____ is a chemical process within cells where sugar and oxygen reacts to form carbon dioxide and water resulting int the release of energy
Answers
Answer:
Cellular respiration is a process that occurs in the mitochondria of all organisms. In this process, both plants and animals break down simple sugars into carbon dioxide and water and release energy in the form of adenosine triphosphate
between the skin and the muscle mass is a layer of connective tissue called the superficial fascia. select one: true false
Answers
It is accurate to say that a layer of connective tissue known as the superficial fascia lies between the skin and the muscle mass.
Below the skin, in the fascia, are sheets of connective tissue. These tissues provide attachment, stabilization, strength, vascular patency, muscle separation, and organ encapsulation. Directly beneath the epidermis and the topmost adipose layers is the superficial fascia. It can exhibit stratification both macroscopically and grossly. It is typically described as consisting of loosely packed interwoven collagen and elastic fibers in membranous layers.
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An important tool of genetic engineering is ________ dna, which is dna altered by the incorporation of genes from a different organism.
Answers
An important tool of genetic engineering is recombinant DNA, which is DNA altered by the incorporation of genes from a different organism.
The modification and manipulation of an organism's genes through technology are known as genetic engineering, often referred to as genetic modification or genetic manipulation. It is a collection of technologies used to alter cells' genetic make-up, including the movement of genes between and within species to create better or entirely new organisms.
Recombinant DNA techniques are used to isolate and copy the genetic material of interest, while artificial DNA synthesis is used to create new DNA. Paul Berg combined DNA from the lambda virus and the SV40 monkey virus in 1972 to create the first recombinant DNA molecule.
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A fish farmer has a large pool used to grow a species of fish. The farmer decides to add a second species of fish to the pool. Both fish species feed on the same type of food, but the fish farmer does not increase the amount of food added to the pool, maintaining the same carrying capacity in the pool.
Which graph shows how the population of the two fish species will change?
Answers
Answer:
D
Explanation:
Explanation: The capacity of fish to the ratio of population change increased and showed a variable degree of measurements.
Which term is used to describe the evidence of preexisting life found in layers of
sedimentary rock?
flora
invertebrates
fauna
fossilized
Answers
Answer: I think its fossils
Explanation:
food and territory are balancing factors in an ecosystem what type of phenomena balance these factors
Answers
Answer:
uhh either natural and reproductive pretty sure it's reproductive