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CTAB is a surfactant used in the isolation of DNA from tissues containing high amounts of polysaccharides. Under the high-salt conditions of this protocol, CTAB binds the polysaccharides removing them from the solution. When combined with Arabidopsis, this procedure yields pure DNA.
What else can I help you with?
Why is it neccessaryo use aseptic techniques when a tube with nutrients broth is inoculated with a soil sample?
Using aseptic techniques prevents contamination by unwanted microorganisms during inoculation, ensuring that only the desired microorganisms from the soil sample grow in the nutrient broth. This helps to accurately study the characteristics and behavior of the microbes present in the soil sample without interference from other organisms.
What is and important role in Soil biological components play?
Soil biological components play an important role in nutrient cycling, decomposition of organic matter, and maintaining soil structure. They are essential for promoting plant growth and overall soil health.
How can you prove that there is bacteria in soil?
One way is to culture the bacteria on a sterile agar plate with a small sample of the soil. After incubating the sample at about 20 degrees (Celsius) for a couple of days you should be able to see the bacteria, it's normally either a shiny patch or it's a yellowish colour. With soil though, there will most likely be a large amount of fungal growth, which you can identify by it's white, fuzzy appearance.
What is the role of living organisms in soil?
Living organisms in soil play a crucial role in nutrient cycling, decomposition of organic matter, and soil structure formation. They contribute to soil fertility, help improve water retention, and support plant growth by providing essential nutrients. Additionally, soil organisms also contribute to carbon sequestration and help maintain overall soil health.
Does soil reproduce?
Soil itself does not reproduce. However, the living organisms within the soil, such as bacteria, fungi, and earthworms, play a role in soil formation and nutrient cycling, which contributes to the overall health and fertility of soil.
A typical soil sample is an example of a homogeneous mixture?
No, a typical soil sample is heterogeneous.
Where do you send the soil sample to be analyzed?
You can send the soil sample to a soil testing laboratory, agricultural extension service, or a professional soil testing facility. They will analyze the sample to provide information on the soil's composition, nutrient levels, pH, and other important factors that can help with plant growth and soil management.
If a soil sample is 60 sand particles and has 30 millon particles of soil how many of those soil particles are sand?
If the soil sample has 30 million particles of soil and 60 of those particles are sand, then the number of soil particles that are sand is 60. Sand particles represent 0.000002% of the total particles in the soil sample.
How can porosity be measured?
Porosity is measured by taking a sample of the soil. The sample is then tested to measure the speed of water passing through the soil.
What is the best speed to separate a soil sample in a centrifuge?
Very high speed is the best speed to separate a soil sample in a centrifuge.
How do you neutralize soil after fertilized?
To neutralise a sample of soil, you must determine the pH of the soil sample either acidic or alkaline. Add lime (e.g. Limestone) to acidic soil to neutralise it. And add sulphur to alkaline soil which will neutralise it.
Who invented the ilosone?
The antibiotic erythromycin, marketed as Ilosone, was discovered by the pharmaceutical company Eli Lilly in the 1950s. Dr. Abelardo B. Aguilar, a Filipino scientist, is credited with isolating erythromycin from a soil sample collected in the Philippines, leading to its development as a medication.
How can iron filings be separated from the soil sample?
Iron is magnetic so move a magnet through your soil sample to remove all the iron fillings.
Which soil sample would lose water more?
The soil sample with smaller particles tends to hold water better than the soil sample with larger particles. This is because smaller particles have higher surface area and can retain more water due to capillary action. Therefore, the soil sample with larger particles would likely lose water more quickly.
The amount of each kind of soil particle in a sample determines the blank of the soil?
Dirt
A soil sample contains living and nonliving materialswhich material was once living?
A soil sample contains living and nonliving materials. Which material was once living?
Is a typical soil sample an example of a homogeneous mixture?
No, a typical soil sample is not an example of a homogeneous mixture. Soil is composed of various components such as minerals, organic matter, water, and air that are not uniformly distributed throughout the sample, making it a heterogeneous mixture.
