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Why is it important to correctly construct the DNA model of the different samples?
Wiki User
∙ 15y ago
Why is it important to correctly construct the DNA model of the different samples?
Wiki User
∙ 15y ago
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What is the difference between cheek cells seen under the microscope and those illustrated in text books?
The major difference between cheek cells seen under a microscope and those in illustrated text books are the samples used. Different samples will yield different results.?æ
Why two samples of blood from same person?
Various answers are true. Cross checking. If they're into different test tubes, then they may have different solvents in them. Two separate labs.
Why clinical trials can't be done on human tissue samples only?
Clinical trials are designed to evaluate the safety and efficacy of treatments in humans, which requires testing them in a living, functioning organism. Human tissue samples cannot explain how a treatment affects the whole body, including its absorption, distribution, metabolism, and excretion. Additionally, clinical trials allow researchers to monitor for adverse effects due to the treatment, which cannot be assessed in tissue samples alone. For high-quality human tissue samples for in-vitro research, visit Central BioHub.
What is DNA Standard used for in a fingerprint?
The DNA strand of each organism has some sequence different from others, but there are some sequences which are known as "variable number tandem repeats" (VNTR), which are repeated many times in the DNA of an individual. These are basis of "DNA fingerprinting". DNA is cut with a restriction enzyme from the specific sites of these repeats. When the DNA of two samples are cut by these restriction enzymes, and run on gel electrophoresis, the band pattern can be matched or compared. Imagine what would happen if you got a sample of DNA from a crime scene and wanted to compare it with another sample, run years earlier or in another country. The gels would have been run at different times, by different people, under different conditions, so perhaps you could not be sure if the bands on the gel match or not. To solve this problem gels are run with both the samples and a reference material, which serves two purposes. Firstly it assures us that the gel has run correctly and that samples were treated correctly. Secondly it means we can determine what the bands of our test DNA mean by comparing them to the reference material. Sometimes the reference DNA is called the standard reference material (SRM) and we commonly used SRM2390 (for RFLP), SRM2391a (for PCR) and SRM 2392 (mitochondrial DNA) in DNA fingerprinting. So the skinny answer is that DNA standards are used to assure the quality and comparability of the test performed.
What is descriptive data?
Descriptive data is data that is used to summarize or describe samples of data. Descriptive data is different from inferential statistics because inferential statistics uses data to learn from it.
Why do polls have different outcomes?
Because they are based on samples and outcomes vary between different samples.
When to use t-test?
You use the t-test when the population standard deviation is not known and estimated by the sample standard deviation. (1) To test hypothesis about the population mean (2) To test whether the means of two independent samples are different. (3) To test whether the means of two dependent samples are different. (4) To construct a confidence interval for the population mean.
How many different simple random samples of 7 are possible from a pool of 25?
There are 25C7 different samples of seven from a pool of 25.25C7 = 25!/(7!(25-7)!) = 480 700 different samples of 7
Which is not a characteristic of a compound-?
Different samples of a compound do not have different properties.
How can someone find free baby samples by mail?
Choose the different brand you wish to use, such as pampers, and go on their website. There they will have a tab where you can order different samples, but you will not be able to order samples of all their products.
What is success independent samples design?
different samples of respondents from the population complete the survey over a time period
What indication do the experimental results give regarding the purity of the samples used?
After a detailed chemical analysis the purity is correctly evaluated.
What indication do the experimental result give regarding the purity of the samples used?
After a detailed chemical analysis the purity is correctly evaluated.
Why are the two samples of carrot cells different?
because
Samples of different kind of letters?
There are many different type of letters that can be written. Once you decide what kind of letter you need, you can do a web search to see many samples.
If two samples of matter had completely identical sets of properties what important inference could be made about the two samples?
Nova net answer: They are the same
Did you see samples of the 3 different types of portfolio?
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