Answer:
True. Modified viruses can be used as a tool to introduce desired genes or modifications in human cells, a technique known as gene therapy. However, this is a highly specialized field and must be performed under strict laboratory conditions by trained professionals to ensure safety and efficacy.
DNA found at a crime scene is cut using restriction enzymes and then ran through a gel using electricity. The bands formed on the gel are compared to bands formed 5 suspects to determine which DNA matches.
(A) Genetic Engineering
(B)Artificial Selection
(C)Gel Electrophoresis
C) Gel electrophoresis. To compare DNA samples taken from a crime scene and a suspect, forensic analysts employ the laboratory process known as DNA fingerprinting.
Despite the fact that 99.9% of the human genome is the identical throughout the population, individual differences can be seen in the remaining 0.1% of human DNA. These changeable DNA sequences, also known as polymorphic markers, can be electrophoresed on a DNA gel to create distinctive DNA banding patterns on an agarose gel. Individuals can then be distinguished or correlated using the DNA bands.
You will be tasked with examining the DNA of two suspects that were identified from a crime scene using human DNA evidence (such as skin cells or hair).
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If an object increases it mass, it ___________its gravitational pull.
A:decreases
B:increases
Answer: Increases
Explanation:
The greater the size of the masses, the greater the size of the gravitational force
Answer:
If an object increases it mass, it increases its gravitational pull.
The picture shows a pulley system with three platforms.
Which would MOST likely happen if the mass on Platform 2 was removed?
Select one:
a.
Platforms 1 and 3 will move downward.
b.
Platforms 1 and 3 will move upward.
c.
Platform 2 will be even with Platform 1.
d.
Platform 2 will be even with Platform 3.
The answer of the given question based on pulley system is Platforms 1 and 3 will move downward. Therefore, the correct option is a.
What is Tension?Tension is a force transmitted through a rope, string, wire, or cable when it is pulled tight by forces acting on both ends. In other words, it is the force that is transmitted through a stretched material when it is pulled at two opposite ends.
The most likely scenario is that Platforms 1 and 3 will move downward. Therefore, the correct option is a.
In this pulley system, Platforms 1 and 3 are connected to the same rope and have a total weight of 40 kg. Platform 2, which weighs 10 kg, is suspended between Platforms 1 and 3. The tension in the rope between Platforms 1 and 2 is equal to the tension in the rope between Platforms 2 and 3.
When the mass on Platform 2 is removed, the tension in the rope between Platforms 1 and 2 will become zero, and the tension in the rope between Platforms 2 and 3 will also become zero. Therefore, the tension in the rope between Platforms 1 and 3 will be equal to the total weight of the system, causing Platforms 1 and 3 to move downward.
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Name the Characteristics of Platiheminthe
Characteristics of Platyhelminthes
They are triploblastic, acoelomate, and bilaterally symmetrical. They may be free-living or parasites. The body has a soft covering with or without cilia. Their body is dorsoventrally flattened without any segments and appears like a leaf.
Characteristic features of Phylum Platyhelminthes
Their body is dorsoventrally flattened.
They exhibit bilateral symmetry.
Also, they are triploblastic, with three germ layers.
They do not have a body cavity and are acoelomate.
The body is soft and unsegmented.
They are mostly parasitic with a few free-living ones.
How do we involve the public and spread the world about the need to address climate change immediately?
In order to spread awareness about climate change people need to actually listen. Start spreading it through school or in the community for those who are willing to listen. This causes a boomerang effect. Once people hear about it they'll spread it to others and on and on. Making a plan or speech that you can showcase to your city hall, start clubs, posters, and when possible protests. Giving examples or real life situations that could later affect our children and their children. You don't have to do it as a individual but finding that group who wants to do similar changes as you is where you'll have that power and voice. Creating that movement that'll catch everyone's attention.
A city develops an open green space in the center of town as a way to help with runoff. Which flood mitigation technique is the city implementing?
O elevated structures
O floodplain management
O seawalls
O stormwater management
The flood mitigation technique that city is implementing by developing an open green space in the center of town is stormwater management.
How do you regulate stormwater runoff?According to the U.S. Environmental Protection Agency (EPA), stormwater management is an attempt to reduce runoff and improve water quality on roads, lawns, and other locations.Some methods of controlling runoff include preventing soil erosion, protecting basements from flooding, landscaping, providing adequate roof drainage, and minimizing paved surfaces.There are various systems. Rainwater reservoirs, rainwater reservoirs, dry reservoirs, wet reservoirs. Different systems damage differently, so it's important for HOAs and pond owners to understand the differences between systems.For more information on stormwater management kindly visit to
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Overconsumption of meat has been associated with all of following health problems EXCEPT:
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
cardiovascular disease.
malaria.
some cancers.
gout.
Answer: Malaria
Explanation: All the health problems are associated with overconsumption of meat, however Malaria is actually a disease carried by mosquitos and can be transmitted to humans through the bite.
What trophic level does a chicken eating corn occupy?
tertiary consumer
secondary consumer
primary consumer
producer
A chicken eating corn would occupy the trophic level of a primary consumer. Corn is a plant-based food source and is considered a primary producer in the food chain.
What is Food Chain?
A food chain is a sequence of organisms in an ecosystem through which energy and nutrients are transferred from one organism to another. It represents the flow of energy and matter in an ecosystem, starting from the primary producers (such as plants) and moving through a series of consumers (such as herbivores, carnivores, and omnivores) before reaching the top predators.
When a chicken eats the corn, it is consuming a primary producer and becoming a primary consumer itself.
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Why is water considered the universal solvent?
O. It can dissolve more things than any other substance.
O It can react with more things than any other substance.
OIt can absorb more things than any other substance.
O It can separate more things than any other substance.
Please 20pts
Answer:
It can dissolve more things than any other substance.
Explanation:
Water is considered the universal solvent because it can dissolve more substances than any other liquid. This is because of its unique molecular structure and properties. The water molecule is polar, which means it has a slightly negative charge on one end and a slightly positive charge on the other end. This polarity allows water molecules to attract and surround charged particles, such as ions, and polar molecules, such as sugars and amino acids.
PLS HELP I GIVE BRAINLIEST
Fill a clear bin (shoe box size works best) about half way with dirt. The dirt can be from outside or a garden supply store.
Lightly moisten the dirt by sprinkling water over it.
Place about 5 worms in the bin. The worms can be dug up from outside or from a bait store.
Observe the worms, in a period of 2,5,10 minutes and 1 and 2 days
What do the worms do when first placed in the dirt.
After 2 minutes where are the worms?
After 5 minutes where are the worms?
After 10 minutes where are the worms?
When you return after one day what do you notice?
When you return after two days what do you notice?
When first placed in the dirt, the worms may burrow into the soil or crawl around on the surface.
Exploration.
Less crawling around.
Motionless on the soil.
Tunnel creation.
Visible casting.
What are the likelihoods of worm behavior?After 2 minutes, the worms may still be exploring their new environment or starting to burrow deeper into the soil. After 5 minutes, the worms may have burrowed deeper into the soil or be crawling around the surface less frequently. After 10 minutes, the worms are likely to have burrowed deeper into the soil or remain motionless on the surface.
When returning after one day, you may notice that the worms have created tunnels in the soil and have consumed some of the organic matter in the soil. They may also have deposited their castings, which are rich in nutrients. When returning after two days, you may notice that the worms have continued to create tunnels and consume organic matter, and their castings may be more visible.
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Consider urban farming. What types of animals would be ideal for an urban farm? What is typically the purpose of having an urban farm? What legal issues do you need to consider before starting an urban farm?
The best animals for urban farming are those that can survive in constrained areas and produce large quantities of meat, milk, or eggs. Typical choices include. Chickens,Rabbits,Bees,Fish
How many different kinds of urban farming exist?Each sort of urban agriculture falls into one of four groups: Institutional, Public, Community-Based, and Commercial
What exactly is urban farming?Urban farming is essentially the practice of raising plants and animals for food production indoors. It can involve preparing the food and then distributing it all around the city. The majority of urban or city farming may at least be categorized as "sustainable," whether or not it is organic.
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Compare and contrast genetic and epigenetic changes.
Genetic changes and epigenetic changes are two different types of modifications that can occur in an organism's DNA. Here's a comparison and contrast between the two:
What is genetic change?Genetic changes refer to changes in the DNA sequence itself. These changes can occur through several mechanisms, including mutations, recombination, and transposition. Genetic changes can have a significant impact on an organism's traits, including its physical and behavioral characteristics, susceptibility to disease, and more. Genetic changes are permanent and heritable, meaning that they can be passed down from one generation to the next.
What is Epigenetic changes?Epigenetic changes refer to modifications that occur to the DNA molecule or its associated proteins that affect gene expression without changing the underlying DNA sequence. Epigenetic changes can be passed down from one cell to another during cell division, and some can even be passed down from one generation to the next.
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What zygomycota germinate into the new hyphae
Answer: zygospores
Explanation:
Zygomycota produces zygospores, which germinate into new hyphae.
Zygomycota produces the zygospores, which germinate into new hyphae.
The production of the zygospores is a distinguishing feature of members of the division Zygomycota which is prompted by releases of certain chemicals like trisporic acid, that make the aerial hyphae that act as a sexual organ come in contact and produce zygospores. it is the spores produced by fungi and protists.
There are so many types of fungi that are included in the division of Zygomycota. one type of fungi is black bread mold which usually spreads over bread or other types of food and sends the hyphae inwards to gather nutrients.
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How are scientists able to see photosynthesis from space? Explain.
Answer: Answer is below <3
Explanation: During photosynthesis, plants emit what is called fluorescence – light invisible to the eye but detectable by satellites orbiting hundreds of miles above Earth. NASA scientists have now established a method to turn this satellite data into global maps of the subtle phenomenon in more detail than ever before.
Cancer is a disease related to uncontrolled cell division. Investigate two known causes for cancer and use this knowledge to invent a drug that would prevent the growth of cancer cells.
Answer:
Cancer is a complex disease with a variety of causes, and its development involves multiple genetic and environmental factors. However, two well-known causes of cancer are mutations in tumor suppressor genes and oncogenes, and exposure to carcinogens.
Tumor suppressor genes are responsible for regulating cell growth and division, and mutations in these genes can result in uncontrolled cell division and tumor formation. On the other hand, oncogenes are genes that promote cell growth and division, and mutations in these genes can also lead to uncontrolled cell division and tumor formation.
Carcinogens are substances or agents that can cause cancer by damaging DNA and disrupting normal cell function. Examples of carcinogens include tobacco smoke, certain chemicals, radiation, and viruses.
Based on this knowledge, a potential drug for preventing the growth of cancer cells could target the activity of oncogenes and/or block the effects of carcinogens on cells. One approach to target oncogenes is to develop small molecule inhibitors that can bind to and block the activity of specific oncogene proteins. For example, drugs like imatinib and gefitinib target the activity of the oncogene Bcr-Abl and the epidermal growth factor receptor, respectively, and are used to treat certain types of cancer.
Another approach to prevent cancer growth is to develop drugs that can detoxify or remove carcinogens from cells before they can cause damage. For example, certain enzymes in the body, such as glutathione-S-transferases, are responsible for detoxifying carcinogens by binding to them and rendering them harmless. Therefore, drugs that enhance the activity of these enzymes could potentially prevent the harmful effects of carcinogens on cells.
Why might it be helpful for an organism to have different types of connective tissue?
Answer:
a
Explanation:
becusw it ahfhhjddjdudjsjejdjdjdjdhshssjs
Which substances are MOST likely made of the same material? -( Info in photo)
Select one:
a.
1 and 3
b.
1 and 4
c.
2 and 3
d.
2 and 4
Answer:
B. 1 and 4
Explanation:
The mass of 1 is 15.6 and 4 is 18.6. The volume of 1 is 7.78 which is close to 4(5.31). The shape of both of them are rectangles whereas there are no other matching shapes. They are both smooth, but that makes it alittle bit hard, because they are all smooth. Although the reaction to light is not the same, so that makes it a little hard as well.
Hope this helps...
I NEED HELP WITH THIS QUICK I JUST POSTED A PICTURE BEFORE THIS SO LOOK AT IT SO YOU CAN UNDERSTAND IT AND THEN ANSWER THIS
It looks like an entry for a herbarium. A herbarium is a collection of preserved plant specimens that are stored and arranged systematically for scientific study.
What is the use of a herbarium?Herbarium specimens can include leaves, flowers, stems, and other plant parts, and are usually pressed and dried on special paper or sheets, called herbarium sheets, which contain information about the plant such as its scientific name, location, and date of collection.
Herbaria serve as an important resource for botanical research and education, allowing scientists to study and compare plant species from different regions and time periods. They are used to identify plant specimens, describe new species, and investigate the distribution and evolution of plants.
Herbaria can be found in many research institutions, universities, botanical gardens, and museums around the world. The largest herbarium in the world is the Museum National d'Histoire Naturelle in Paris, which houses over 8 million plant specimens.
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Look at the food web diagram, which MOST LIKELY represents X
A) corn
B) eggs
C) foxes
D) worm
We learned about Mendel's experiments with pea plants. Mendel noted that purple flowered pea plants ALSO had purple colored seeds. He also noticed that white flowered pea plants ALSO had no pigmentation in their seed coats. So Mendel found out that the gene for flower color also directs seed coat color. This gene must be: A.Polygenic B.Pleiotropic
Gregor Mendel explains his trials with peas that demonstrated that heredity is passed down in distinct pieces. People have always noted the likeness , both in animals and plants and in human families.
When did Mendel perform his studies on purple and white flowered pea plants?When Mendel tested purple- and white-flowered pea plants, he discovered that the F1 generation included no white-flowered plants. White-flowered plants were seen in the F2 generation. Choose the correct statement from the list below. The purple-flower gene is dominant over the white-flower allele.
Mendel then crossed these pure-breeding plant lines and noted the characteristics of the hybrid offspring. He discovered that all of the first-generation (F1) hybrids resembled one of the parents.
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In certain fireworks, potassium nitrate breaks down into potassium oxide, nitrogen, and oxygen. This is an example of a reaction. The opposite process is a reaction.
Answer:
Explanation:
In specific fireworks, potassium nitrate breaks down into potassium oxide, nitrogen, and oxygen. This is an example of a combustion reaction. The opposite process is a SYNTHESIS REACTION.
Cover crops can be planted on farms in seasons when their main crops cannot grow. These crops allow the nutrients in the soil to continue cycling, for organisms in the area to have food, and can protect the soil from the weather. What might happen if cover crops are not used? (1 point) Responses The nutrients in the soil might become depleted, making it harder to grow the main crop in the next season. The nutrients in the soil might become depleted, making it harder to grow the main crop in the next season. The texture of the soil might change to adapt to not having plants around and might hold more water the next time it rains. The texture of the soil might change to adapt to not having plants around and might hold more water the next time it rains. The organisms in the area would protect the soil so that the main crops could grow again in the next season. The organisms in the area would protect the soil so that the main crops could grow again in the next season. Erosion will naturally keep farms healthy by removing poor quality soil.
The nutrients in the soil might become depleted, making it harder to grow the main crop in the next season.
What is crop?
Cover crops are typically planted during off-seasons to improve soil health and fertility. These crops help to prevent soil erosion and nutrient loss by capturing excess nutrients and preventing them from being washed away. Without cover crops, the soil may become depleted of nutrients, making it more difficult to grow the main crops in the following season. Additionally, without cover crops, the soil may be more vulnerable to erosion and damage from weather events.
What is nutrients in soil?
Nutrients in soil refer to the various chemical compounds present in the soil that are necessary for plant growth and development. These include macronutrients such as nitrogen, phosphorus, and potassium, as well as micronutrients such as iron, zinc, and magnesium.
Plants obtain these nutrients from the soil through their roots, and the nutrients are essential for processes such as photosynthesis, growth, and reproduction. Nutrients can become depleted over time due to plant uptake, leaching, erosion, and other factors, which is why it is important to replenish them through practices such as fertilization and cover cropping.
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describes the weather at location X on Day 1 and Day 2? Maps of predicted weather conditions are shown.
Day 1: warm and rainy Day 2: cool with more rain
Day 1: warm and windy Day 2: cloudy and cold
Day 1: clear and cool Day 2: warm and rainy
Day 1: cold and rainy Day 2: clear and sunny
Day 2
The weather at location X on Day 1 and Day 2 is option D, Day 1: cold and rainy Day 2: clear and sunny as shown on the map.
What is a weather condition?Weather condition refers to the state of the atmosphere at a particular time and place with respect to variables such as temperature, humidity, wind speed and direction, air pressure, cloudiness, and precipitation. It describes the current atmospheric conditions and can change rapidly over short periods of time.
Other examples of weather conditions include, Precipitation (rain, snow, sleet, hail), Humidity (dry, moist), Wind (breezy, windy, calm), Cloud cover (sunny, cloudy, overcast), Atmospheric pressure (high pressure, low pressure).
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Two pea plants that are heterozygous for both pea color and shape are crossed. What is the expected genotype ratio of their offspring
Answer: 3:1
Explanation:
1. How far will a car travel at 50 m/min in 25 min?
2. How far will a car travel at 50 km/h in 7 h?
3. How long will a ball roll 400 m at 70 m/min?
4. If a car travels from 3 m/s to 30 m/s in 3 seconds, what is the car's average acceleration?
Answer:
1. 1,250 miles
2. 350 km
3. 5.71 min
4. 10 m/s
Explanation:
50 m/min * 25min = 1250 miles
50 km/hr * 7 hrs = 350 km
Question was confusing, but if I interpreted it correctly...
400 m ÷ 70 m/min = 5.71 min
3 m/s to 30 m/s in 3 sec would be an increase of 10 m/s
In terms of stability and change, what change occurs in the system during the process of metamorphic rock
formation? When is the system stable again?
Answer:
During the process of metamorphic rock formation, there is a transformation or change in the mineral composition and texture of the original rock due to high heat, pressure, or chemically active fluids. As a result, the system goes through a significant change.
The system may be considered "stable" again once the metamorphism process has completed and the resulting metamorphic rock has reached equilibrium - meaning that there are no longer any changes occurring within the rock due to external factors. The stability of a metamorphic rock depends on various factors such as the mineral composition, temperature, pressure, and chemical environment. Once these factors balance out and reach a steady state, the system can be considered stable again.
Answer: The change that occurs is the eroding, or breaking down of a rock into sediments, the movement and deposition of the sediments, and the compaction and cementation of the sediments to form a new rock. The system is stable again once the new rock is formed.
6. Select the correct terms to complete the statement about early life on Earth.
When life first evolved on Earth, there was virtually no oxygen in the atmosphere. The earliest prokaryotes were likely anaerobic | aerobic meaning they did not require oxygen
to produce energy. Over time, photosynthetic
| chemosynthetic prokaryotes evolved, which made energy from the sun. The chemical reactions involved in this process released carbon dioxide
| oxygen | nitrogen into the atmosphere. This allowed for the evolution of eukaryotes.
Answer:
Explanation:
When life first evolved on Earth, there was virtually no oxygen in the atmosphere. The earliest prokaryotes were likely anaerobic meaning they did not require oxygen to produce energy. Over time, photosynthetic prokaryotes evolved, which made energy from the sun. The chemical reactions involved in this process released oxygen into the atmosphere. This allowed for the evolution of eukaryotes.
Explain how the following could be sources of infection during food preparation.
I. Utensils
Ii. Food handler
Iii. Water
Utensils, food handlers, and water can be a source of infection during food preparation according to the explanations below.
Sources of infection during food preparationUtensils: Utensils can be sources of infection during food preparation if they are not properly cleaned and sanitized between uses. Bacteria and other pathogens can cling to the surface of utensils and contaminate food, leading to foodborne illness.Food handler: Food handlers can be sources of infection during food preparation if they are carrying bacteria or viruses on their hands or clothing. If food handlers do not practice good hygiene, they can transfer pathogens to the food they are preparing, leading to foodborne illness.Water: Water can be a source of infection during food preparation if it is contaminated with bacteria, viruses, or other pathogens. If water is used to wash food or utensils and is not properly treated or purified, it can transfer pathogens to the food, leading to foodborne illness.More on infections during food preparation can be found here: https://brainly.com/question/10355298
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Which characteristic best explains people having a stable internal body temperature?
A. Homeostasis
B. Cellular Organization
C. Adapt through Organization
D. Heredity
Answer:
The answer is homeostasis
I learned this in my Anatomy and Physiology class and homeostasis is a internal environment (in our body) that is able to stabilize
In general, the more tightly the DNA is wound around the histone proteins in a chromosome, the easier it is for RNA polymerase to access a gene and make a copy of that gene. true or false
Answer:
False.Explanation:
In general, the more tightly the DNA is wound around the histone proteins in a chromosome, the more difficult it is for RNA polymerase to access a gene and make a copy of that gene. This is because the tight winding of DNA around histones creates a compact structure called chromatin, which can restrict the access of RNA polymerase and other transcription factors to the gene. Therefore, genes that are tightly packed within chromatin are generally less accessible for transcription, while genes that are less tightly packed are more accessible for transcription.