Under which of these conditions would scientists use the polymerase chain reaction (PCR) before they analyze a DNA sample?

A
The DNA sample comes from a bacterium or virus,

B. The DNA sample has been cut into fragments by restriction enzymes.

COnly a small amount of the DNA sample is available,

D.
The DNA sample includes regions that are transcribed into mRNA,

Answers

Answer 1

Answer: C

Explanation:

Answer 2

A specific DNA segment is amplified via PCR from a complicated combination of starting material, commonly referred to as template DNA, hence option C is correct.

What is the polymerase chain reaction (PCR)?

The reaction's simplicity and the relative case of the practical manipulation procedures are what's behind it. The reaction needs some knowledge of the flanking DNA fragment's sequence in order to be amplified.

Taq polymerase is the name of the heat-tolerant bacterium from which the DNA polymerase normally used in PCR was derived (Thermus aquaticus). T. aquaticus resides in hydrothermal vents and hot springs.

The primers are used in accordance with the sample or target DNA. The procedure, which entails numerous cycles in which copies are created, likewise uses DNA and Taq polymerase.

Therefore, the three fundamental phases are "denaturation," "annealing," and "extension."

Learn more about PCR, here:

https://brainly.com/question/12493970

#SPJ2


Related Questions

Someone please help me !!!!

Answers

Answer:

Its your slope of the line!

Explanation:

Find two certain easily distinguishable points and use those to determine the slope! It would be rise over the run so y/x which would be 1.2. However I am not quite sure as to whether it would be -1.2 or positive 1.2 as the graph goes both positive and negativley. I hope I was able to help.

1. The lithosphere floats on top of the more plastic (soft) asthenosphere. This is the
basis for Plate Tectonics or the idea that the continents, along with the crust below
them, have moved over time. Describe the properties of these two structures and
how you think that affects their interactions.

Answers

Answer:

answer is that the atmosphere is hot as

The answer is the atmosphere is as hot as the sun

Help me plz, love you

Answers

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50 points!
As a person exercises, this causes several body systems to work together. For 2 points each, answer the following questions: 1. Define organ system and what they are made up of to be able to do specific functions 2. Identify TWO organ systems (other than the nervous system) that would be involved in exercise. 3. Explain how the NERVOUS system would be involved in the exercise.​

Answers

Answer:

The parasympathetic nervous system conserves energy as it slows down heart rate, increases intestinal and glandular activity, and relaxes the sphincter muscles of the gastrointestinal tract. It gets the nickname "rest and digest" for doing exactly so. Typically most active when sleeping, however is also the explanation for post-prandial fatigue, or being tired after eating (especially a large meal).

Explanation:

Define organ system and what they are made up of to be able to do specific functions An organ system is made of a few organs that perform multiple functions.

Identify TWO organ systems (other than the nervous system) that would be involved in exercise. parasympathetic nervous system

Explain how the NERVOUS system would be involved in the exercise.​The peripheral system allows the brain and spinal cord to receive and send information to other areas of the body, which allows us to react to stimuli in our environment.The peripheral nervous system itself is divided into two parts: the somatic nervous system and the autonomic nervous system.Each of these components plays a critical role in how the peripheral nervous system operates.

Motor neurons: Also called efferent neurons, motor neurons carry information from the brain and spinal cord to muscle fibers throughout the body. These motor neurons allow us to take physical action in response to stimuli in the environment.

Sensory neurons: Also called afferent neurons, sensory neurons carry information from the nerves to the central nervous system. It is these sensory neurons that allow us to take in sensory information and send it to the brain and spinal cord.

What 4 materials can exit out the cloaca

Answers

Correct answer - Digestives, urinary, reproductive tears and feces.

Why? - A cloaca is an orifice through which urine and feces are eliminated in birds, reptiles, amphibians, and a few branches of the mammal family tree. It also serves a reproductive function like the vagina in females of these species, and also performs the function of sperm ejaculation in males of some species.
A cloaca is an orifice through which urine and feces are eliminated in birds, reptiles, amphibians, and a few branches of the mammal family tree. It also serves a reproductive function like the vagina in females of these species, and also performs the function of sperm ejaculation in males of some species.


Data from embyros can be used to help establish evolutionary relationships. True or false

Answers

Answer:

True  

Explanation:

The study of the formation and development of the embryo is very useful in evolutionary biology in order to determine similarities derived from a common ancestor (i.e. homologies). In consequence, embryology is a discipline used to establish relationships between species and higher taxa. For example, vestigial organs and/or tissues (e.g., tails in humans) can be observed in the embryos during the first stages of development. In this regard, embryology has been an important aspect of the evolutionary theory proposed by Darwin (1859) by evidencing the process of species radiation from their ancient ancestors.

what Protects the cell and controls what enters and leaves the cell

Answers

Answer:

The Cell Wall & membrane transports.

Explanation:

The cell wall is what protects the innards of a cell from foreign substances, as well as protecting the overall body. The membrane transports are cut out tunnels located in the cell wall that allows for transportation of food and other products into a cell, and the waste to be expelled.

~

Answer:

✔ Cell membrane

Explanation:did on edge

What is the antibody made during the second contact with an antigen called?

Answers

Unmmm where’s the question dhdhdhdhhdhhddh

I’ll mark brainiest if your right need ASAP

Answers

Answer:

im on a school laptop and its blocked can you right it out plz

Explanation:

Answer:

A. Genes are segments of DNA that are located on the chromosome of each cell

Explanation:

Classify various uses of computer technology.

Answers

Answer:

Online communication, video games, a source entertainment, internet searches, online music

Explanation:These are all used of computer technology.

Answer:

The computers are categorized as Supercomputers, Mainframe computers, Minicomputers, Personal computers, Mobile computers, Laptops computers, Tablet computers, Portable computers, Personal digital assistants, Calculators, Handheld game consoles, Information appliances, Embedded systems.

Explanation:

Why does the starch remain present and is detected by iodine in the boiled solution?

Answers

Answer:

Amylose in starch is responsible for the formation of a deep blue color in the presence of iodine. The iodine molecule slips inside of the amylose coil. ... A blue-black color results if starch is present. If starch amylose is not present, then the color will stay orange or yellow. I hope this helps!

A continental polar air mass forms in
A. the Pacific Ocean
B. Northern Canada
C. Golf of Mexico
D. The desert southwest

Answers

c i think is the correct answer or a

Ayudaaaaaaaaaa
Plissssssssssssss ​

Answers

Answer:

Picture is upside down and is very blurry sorry!

The Sun’s ______ _____ is transformed ______? A. Chemical energy. B. Photosynthesis. C. Producers. D. Radiant energy. E. Transform

Answers

Explanation:

the sun's radiant energy is transformed into chemical energy

describe the 10 disorders that result from the description of homeostasis​

Answers

Answer:

Diseases that result from a homeostatic imbalance include heart failure and diabetes, but many more examples exist. Diabetes occurs when the control mechanism for insulin becomes imbalanced, either because there is a deficiency of insulin or because cells have become resistant to insulin.

diabetesBlood oxygen content homeostasis. Homeostatic Imbalances of the BloodPlasma ionized calcium homeostasis. Arterial blood pressure homeostasis. Core body temperature homeostasis. The volume of body water homeostasis. Extracellular sodium concentration homeostasis.

Which statement best describes the study of Biogeography?
A. Where species and their ancestors live

B. How extinct species can be related to living species

C. How different species can interbreed

D. How animals that live in the same area are closely related

Answers

Answer:

A

Explanation:

Answer: a

Explanation:

Why are watersheds important for the maintenance of water quality? Choose all that apply.

Select 2 correct answer(s)
Question 3 options:

their soil and plants can filter and clean water


they can transfer pollutants


they cause precipitation and acid rain


they cause floods

Answers

Answer:

This may be a little late but the answers are A. their soil and plants can filter and clean water and B. they can transfer pollutants and

Explanation: just trust me it was on my quiz these are the correct answers

Answer:

A & B is correct i took the quiz

Explanation:

The input to glycolysis is __________, and under aerobic conditions, the outputs of the Krebs cycle include _______________.

Answers

The input to glycolysis is glucose , and under aerobic conditions, the outputs of the Krebs cycle include ATP/GTP.

sorry if im wrong, you can report it if you think its wrong

which statement describes the law of superposition
A. Sedimentary rocks were originally in horizontal layers
B. In horizontal rock layers, each layer is younger than the one below it
C. Rock layers must be in existence before something can happen to them
D. Rocks that are not in horizontal layers were shifted by some geologic event.

Answers

Answer:

B. In horizontal rock layers, each layer is younger than the one below it

Explanation:

Law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence. ... It is one of the great general principles of geology..

using breast cancer as an example calculate the percentage of survival for this cancer type

Answers

40,000/180,000 = .222222

.22222 x 100 = 22.22222

Answer: 22.2%

In which of the following ways is DNA replication different from DNA transcription? (4 points)


New cells can be created only after transcription has taken place.

Replication results in mRNA strands, while transcription creates new DNA.

Transcription happens outside the nucleus, and replication happens inside the nucleus.

Thymine is used in replication, while uracil is used in transcription.

Answers

Answer:

Transcription copies the DNA into RNA, while replication makes another copy of DNA. Both processes involve the generation of a new molecule of nucleic acids, either DNA or RNA; however, the function of each process is very different, with one involved in gene expression and the other involved in cell division.

Explanation:

So,my answer is,transcription happens outside the nucleus,and replication happens inside the nucleus.

#CARRY ON LEARNING

Answer:b

Explanation:

1Some moths have a brown body and brown wings, while other moths have a white body and white wings. The brown moths often rest on the bark of pine trees, and the white moths rest on the white bark of aspen trees. If all the aspen trees in an area were cut down, what would be the likely result? (YOO PLEASE ANSWERSSSSS)​

Answers

predators can spot the white moth more easily since their habitat is destroyed, and it can no longer camouflage. eventually, the population of white moths will come to a end

Answer:

The poplar tree with the whitest bark is the White or Silver Poplar. It can be distinguished from the white birch fairly easily, even if you can't tell the difference in leaves.

Explanation:

The table below provides information about nutrition and cellular structure for
organisms in different kingdoms.
Kingdom
Nutrition
Fungi
heterotrophic
Nucleus Unicellular or
Multicellular
yes
unicellular and
multicellular
yes multicellular
?
?
Plantae
autotrophic
2
Animalia
What information best completes the table?
heterotrophic, yes, multicellular
heterotrophic, no, unicellular
autotrophic, yes, multicellular
autotrophic, no, unicellular

Answers

Answer:

Autotrophic yes multicellular

Heterotrophic yes multicellular

Explanation:

Often During summer months large bodies of water will experience "fish kill." These do not happen during the winter months. Explain these events using your understand of the properties of water.

Answers

Answer: see below.

Explanation:

gases dissolve more in colder water, so in summer the water can become oxygen depleted. Evaporation in summer can reduce water volume; even in summer rainfall climate evaporation rates may exceed precipitation. Evaporation will also cause higher conentrations of solutes of which some may reach toxic levels. Summer sun may also cause algal or cyanobacterial blooms which can further deplete dissolved oxygen and may release toxins into the water.

Will give brainliest Lions are the predator that most often hunt both wildebeest And Buffalo, what do you predict is happening to the lion population between 1960 and 1975?

Answers

Answer:

Fewer than 500 lions remain in West Africa, the study estimated. The team and a panel of lion experts used the savannah data to refine estimates of lion populations, which had ranged between 20,000 and 40,000 across Africa. Their estimate: 32,000 lions remain, down from an estimated 100,000 in 1960.

Hi guys! My brother is always rly kind to me and I love him more than anything. If you guys play nitro type which is an academic typing game. He is giving away his acc which is stacked with a bunch of stuff. But i am rly saying this so u guys can go sub to his channel It would mean the world to him once he finds out. https://www.yout ube.com/watch?v=4rN7-VVvzIA&feature=youtu.be thats his channel when u copy and paste the link delete the space between the you and the tube. ty all dont forget the best letter is eeeeee

Answers

ill help your brother and support him all the way

Life is either a daring adventure or nothing at all

new supporter/new friend: malia

Answer:

ill help your brother and support him all the way

Life is either a daring adventure or nothing at all

new supporter/new friend: malia

Explanation:

How can the environment affect future generations?

Answers

Answer:

Climate change is already harming people’s health by increasing the number of extreme weather events and exacerbating air pollution, according to the study published in The Lancet medical journal. And if nothing is done to mitigate it, its impacts could burden an entire generation with disease and illness throughout their lives.

Explanation:

Which term describes this group of stars?
Moon
Solar System
Galaxy
Universe

Answers

Answer:

I think Galaxy hope this help in anyway!

Explanation:

In the lungs, there are tiny sacs called alveoli. Gas exchange will need
to occur here between which two gases?

Answers

When air is inhaled, oxygen diffuses from the alveoli into the blood to be used for respiration by the body’s cells. Carbon dioxide is a waste product made by the body’s cells during respiration.

Answer:

carbon dioxide and oxygen

Explanation:

How do moving glaciers change the surface of the earth??? please help!!!​

Answers

Answer:

Glaciers are massive bodies of ice that move across the surface of the Earth like rivers. As glaciers move they change the surface of the Earth by wearing away loose rocks and soil and depositing them somewhere else.

Explanation:

Answer:

Glaciers change the surface of the earth by causing small or large amounts of material to be pushed out of the way as the glacier slides along a path set by gravity and angle of the slope it is on.

Explanation:

Other Questions
If the sales tax rate is 7% in New York, then how much sales tax would you pay in New York for a $34 pair of pants? Which bodies of water are near Russia, but not touching Russia? What is the value of x? Enter your answer in the box. X= What is the GCF of 40x,25 Olivia is shopping at macys . The cost of all the items at the store include tax. Olivia buys some scarves that cost $5 each and 2 purses that cost $12 each. The cost of Olivia's total purchase is $39. Which equation can be used to find s, the number of scarves that Olivia buys?1. 5 + 24s=392. 5s + 24=393. (24 + 5)s=394. 24 t 5 + s=39 UNIT 2Text QuestionsPlease complete the following questions. It is important that you use full sentences and present the questions and answers when you submit your work.Submit the work as a file attachment. This means you complete all work in a word processing document (e.g., Microsoft Word) and attach the file using the dropbox tool. Use the Unit 2: Text Questions dropbox.The answers to the Review & Critical Thinking questions are worth 10 points.UNIT 2 TEXT QUESTIONSReview QuestionsWhy do government agencies conduct nutritional research?Describe three examples of health information that has come from the Nurses Health Study.When assessing nutritional health, what does laboratory testing monitor?Describe three results of healthy lifestyle changes.What happens to the body when you exercise?Critical Thinking QuestionsHow does the hypothesis help inform the design of an experiment?Why might a school hire a nutritionist?Why do you think that dieting increases the likelihood of eating disorders in teenage girls?If a diet has inconsistent results, as in the case of the paleo diet, how would that influence your decision to try it? What factors would you look for when choosing a healthy diet?Why do you think tracking the foods you eat or exercises you do is an important way to stay healthy? Caleb invested $8,800 in an account paying an interest rate of 2.8% compounded daily. Assuming no deposits or withdrawals are made, how long would it take, to the nearest tenth of a year, for the value of the account to reach $13,060? The NFL's chief medical officer said that the league's "most effective strategy" in preventing the spread of coronavirus is what?wearing maskshand sanitizersocial distancingshutting down How is pitch and intensity related? Please help me tysm plzzzzz Jasper decorates flower pots to sell in his shop.HE knows that it takes 12 minutes to decorate a flower pot. Jasper works from 9:30am until 12:50pm on Tuesday. HE takes 20 minutes for a coffee break at 10:30amHow many flower pots does Jasper decorate on Tuesday? rewrite sin^4x that involves only the first power of cos As explained in Scientists Build Robot That Runs, Call It Cheetah, what is the main function of the computer that is built into the robot?A. The military might use cheetah robots in place of soldiers in warfare.B. The military might use cheetah robots to control the flights of missiles.C. The military might use cheetah robots to locate wounded people during a disaster.D. The military might use cheetah robots disguised as animals to attack enemies during battle. Which of these statements is true? (Select all that apply.) 1. Any reflection can be replaced by a rotation. 2. Any translation can be replaced by two dilations. 3. Any dilation can be replaced by two reflections. 4. Any translation can be replaced by a rotation. Please help thank you PLSSS HELP ASAPPPP I BEGMARKI BRAINLIST AND GIVING POINTS A company's master budget for October is to manufacture and sell 30,000 units for a total sales revenue of $270,000, total variable costs of $180,000, and total fixed costs of $24,000. The company actually manufactured and sold 32,000 units and generated $45,000 of operating income in October. The flexible-budget operating income in October was: -1.3f + 0.4j - 12 - 1 + 2.9f ask about mountain (how/form?) ok i need sum help big time anybody?