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What is the function of allele ladder in DNA profiling?
An allele ladder is used as a reference for determining the sizes of DNA fragments in a sample during DNA profiling. It contains known fragments of DNA of varying sizes that are used to calibrate the gel electrophoresis results, allowing for accurate comparison and identification of the sizes of DNA fragments in the sample.
Has two distinct sizes of crystals?
Crystals can have different sizes due to differences in their growth conditions, such as temperature, pressure, and rate of crystal growth. Factors like nucleation sites, impurities, and crystal lattice structure can also influence crystal size. These variations in growth conditions can lead to crystals with different sizes within the same sample.
Why was Mendel successful when studying the pea plant?
Because of his background in statistics and physics.
What kind of systematic errors are detected by varying the sample size?
Varying the sample size can detect systematic errors related to sampling bias or outliers. With larger sample sizes, trends and patterns in the data become more apparent, making it easier to identify any biases in the sampling process or extreme values that may skew results. This can help researchers understand and correct for these systematic errors to improve the reliability and validity of their findings.
What is an allele ladder and what is its function in DNA profiling?
An allele ladder is a mixture of DNA fragments of known sizes used as a reference in DNA profiling. It helps determine the size of unknown DNA fragments by comparing them to the ladder's known sizes. This allows for accurate identification of the alleles present in a sample for forensic or paternity testing purposes.
Is it necessary that sample sizes be equal for a two sample test?
No.
Where is a good place to shop for cultured pearls?
The Oklahoma Jewelers Association would recommend that the best place to shop for cultured pearls would be at the Pearl Oasis. The Pearl Oasis offers the best cultured pearls available in different sizes.
What size are the sample sizes at fashion shows?
Sample sizes vary from designer to designer but a common range is between 0-2, 4 at most.
In a controlled experiment how do the number of trials and sample sizes effect the results?
The number of trials and sample sizes generally increase the accuracy of the results because you can take the average or most common results in the experiment
Disadvantages of a large sample size confidence Interval in statistices?
A disadvantage to a large sample size can skew the numbers. It is better to have sample sizes that are appropriate based on the data.
When using the distribution of sample mean to estimate the population mean what is the benefit of using larger sample sizes?
The variance decreases with a larger sample so that the sample mean is likely to be closer to the population mean.
Why do smaller populations need larger sample sizes?
They do not. Population size does not affect the sample size. The variability of the characteristic that you are trying to measure and the required accuracy will determine the appropriate sample size.
Does the Student t distribution takes different values for a different sample size?
Yes, but it converges to the Gaussian (Normal) dirstribution for large sample sizes.
What is the largest size bathroom basin?
It is not really known what the largest size bathroom basin is as they will vary around the world and can be custom built to very large sizes. The largest one can get in a traditional store is about 1500mm.
Is it desirable to have a two sample test with equal sizes?
If they are not matched pairs, it does not really matter. If the combined sample size is fixed (because of costs, say) then it is better to have a larger sample where more variability is expected.
What are cultured stones?
Cultured stone is the result of a man-made attempt to replicate the appearance of natural stone. Cultured stone is produced by pouring a cement-like aggregate into molds of various shapes and sizes. The solidified product is then face treated to resemble stones which may be found in nature. The cultured stone is lighter, usually only a slab with one finished face, relatively thin, and is used in facing applications like fireplaces and walls where the weight of a natural stone would cause some concern.
When designing an experiment a benefit of larger sample sizes would be more?
Accurate estimates of various statistics.
