Answer:
Lowest to highest degree of internal organization form the given items are:
1) <u>Digestive system:</u> Digestive system is a type of organ system, which is consist of several digestive organs such as mouth, stomach, pancrease and intestine.
2) <u>Stomach: </u>Stomach is a type of organn which is a functional group of tissues.
3) <u>Stomach lining tissues: </u>These are functional group of cells.
4) <u>Epithelial stomach cell: </u>cell is a basic unit of all life.
Hence, the correct order form loowest to highest degree of internal organization is:
Digestive system => Stomach => Stomach lining tissues => Epithelial stomach cell
Answer:
The first attached figure below shows the design of an agarose gel with four sequencing reactions. The second figure presents a photo of an agarose gel, so that you can better understand how the bands are represented in this gel.
Explanation:
To view the bands of four sequencing reactions on an agarose gel, you will need to use a melted agarose gel, plastic combs suitable for that reaction and a container suitable for that type of gel. You will place the plastic combs in the container and pour all the gel into the vat and wait for the melted gel to solidify. The plastic combs will form holes in the hardened gel where the DNA samples will be placed.
Once the gel is hardened, you will remove the plastic combs and begin to apply the sequenced DNA.
The sequenced DNA samples will be mixed with a dye, usually bromophenol blue, which will allow you to visualize the bands formed on the gel. You will also apply the dye to a sample without DNA containing only the dye, which serves as a comparison for the size of the bands.
Each sample of DNA will be plated in the column of holes formed by the plastic combs. Then, this container, with the gel, will be placed in a larger container that contains a loading buffer. The larger container will be closed and an electric field will be applied that will force the DNA samples to be moved from one pole to another inside the container, in this case, the samples leave the negative pole for the positive pole.
After a few minutes, it is possible to visualize the DNA displacement and at the end of the procedure it will be possible to visualize the formation of bands as shown in the drawing and in the figure below. The size of these bands can be compared and analyzed.
<u>Answer</u>:
Newspaper is the most reliable source of information to make a claim valid.
<u>Explanation</u>:
A newspaper is always considered as the authenticated source of information. A news that is published in a newspaper is always regarded as a valid news because it is published from a government authorised and renowned newspaper publishing house. For example, if we want to claim a certificate or an authorisation, it will be considered acceptable if we publish it in a newspaper. So it is the most reliable information source to make a valid claim.
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. ... Alleles are forms of the same gene with small differences in their sequence of DNA bases
The correct answer to your question is C. SY,SY, SY and SY.