These profiles provide direct information about nucleotide sequences. DNA fingerprinting or DNA profiling is a method of isolating and identifying variable elements within the base pair sequence of DNA. DNA profiling relies on microsatellites rather than the minisatellites used in DNA fingerprinting. Microsatellites, or short tandem repeats (STRs), are the shorter relatives of minisatellites usually two to five base pairs long.
<span>The reason is that there are a number of processes which are being carried out by the living organisms and they include the application of diffusion. ;)</span>
For the answer to the question above, <span>Griffith heated a culture of a disease- causing the strain of the bacteria, which killed the bacteria but didn't destroy the DNA. When he mixed the heat-killed, disease-causing bacteria with live harmless bacteria, the DNA from the disease-causing bacteria was infused to the live bacteria. This kind of bacteria and their offspring caused pneumonia to the mice.</span>
Answer:
A serial dilution and the following plating experiment is done in order to determine the actual amount of bacteria/microbes in a specific volume of soil sample. As a standard test, a set volume of the lower dilution is obtained and positioned on a median plate and permitted to increase for the needed amount of time. The amount of colonies is evaluated and thus the overall Colony Forming Units (CFU) is determined by unit volume of the sample plated and therefore the volume of soil sample employed.
Therefore,
The calculation is done using:
CFU/ml = Number of colonies appeared × dilution factor / volume plated
Given,
Number of colonies appeared = 97
dilution factor = 10^(-6)
volume plated = 1/10 = 0.1
This will help us calculate it as:
CFU/ml = 97 * 10^(-6) / 0.1
= 97 * 10^(-7) CFU/ml
This CFU/ml helps determine the amount of bacterial colonies per unit volume of sample plated.
Given,
The original sample as 1g or 1000 mg of soil in its total volume.
Therefore,
The number of bacteria can be calculated using:
Amount of bacteria in original sample
= 97 * 10^(-7) CFU/ml × 1/ 1000 mg
= 9.7 * 10^(-3) CFU/mg
Asexual reproduction<span> generates offspring that are genetically identical to a single parent. In </span>sexual reproduction<span>, two parents contribute genetic information to produce unique offspring. Hope this helps so you can find the answer with the info i have given you btw
good luck :)
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