Answer:
This question is asking to fill in the blank spaces with the correct terms. The correct terms to the four blank spaces are:
1) GEL
2) DYE
3) DNA MARKER
4) LID
Explanation:
This question is describing the Gel electrophoresis technique which is used to separate DNA fragments using electric current. The DNA fragments of different sizes migrate through a GEL which serves as the matrix made from Agarose.
In order to physically see the samples that we put in the gel, we first have to add DYE to each sample of DNA. After loading the samples to be separated, a substance made up of DNA fragments of known sizes referred to as DNA MARKER, which acts as the standard curve in a tube is used.
Before running the gel, it's important to make sure that there is LID covering the gel in the gel rig. This will make sure that the electrical current runs through the gel and the gel stays cool.
<span>Aneurysm.
An aneurysm occurs when part of an artery wall weakens, allowing it to widen abnormally or bulge out. The causes of aneurysms are sometimes unknown. Some may be congenital, meaning a person is born with them. An aneurysm may also occur as the result of aortic disease or an injury.</span>
Answer:
During primary succession on land, fungi and lichen are the most common pioneer species. They break down minerals in the rock to form soil, which allow subsequent communities to colonize the area .
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Answer:
The answer would be pathogenic organisms!
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Answer:
If more trees grew, the darker coloring of frogs would be more likely to survive. If the trees were cut down, the lighter variation of frogs would be more likely to survive.
Explanation:
Darker colored frogs would be harder to spot in the shade of the trees and survive and through natural selection, their genes would pass on. Same thing applies to the lighter colored frogs without the shade of the trees.