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PolarNik [594]
3 years ago
12

Spirit Lake is on the north side of Mt. St Helens and received extensive from the blast.

Biology
1 answer:
Kruka [31]3 years ago
7 0

This statement is true

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Which of the following best describes how a blood cell and skin cell have the exact same DNA sequence and yet look different and
den301095 [7]

Answer:

This question is incomplete as it lacks options, however, it will be answered BROADLY so the it can be understood enough to select the correct answer.

Please find the explanation below

Explanation:

Cells perform different functions and look differently because of the process of CELL DIFFERENTIATION. All cells arise from a single stem cell, which then gradually differentiates into different types of cells with different functions, as they divide.

At the molecular level, these different types of cells contain the same DNA sequence as rightly stated in the question. However, they look and perform differently because some of the genes are turned on while the others are turned off via the process of GENE EXPRESSION.

Therefore, a blood cell and skin cell possess exactly the same DNA sequence but look different and perform different functions because of CELL DIFFERENTIATION in which some genes on the DNA sequence are expressed and others are repressed. For example, in the blood cell; the genes coding for certain proteins found in blood are expressed while every other gene is silenced or inhibited. This allows those cells to perform only blood-related functions.

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3 years ago
Side A and side B have 20 ml of water (There is a semi-permeable membrane in between that only allows water through), side A has
Varvara68 [4.7K]
<span>There is more sugar on side B the water to sugar ratio is lower so the water from side A will balance out the ratios between side A and B by moving across the membrane because </span>the sugar molecules cannot diffuse through the membrane, the water has to go to the sugar, therefore, we have to lower the concentration of the sugar.
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An error in which macromolecule is the cause of hermophia
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In hemophilia A it’s caused by a mutation in the gene for factor VIII. Hemophilia B is a result in a deficiency in factor IX due to a mutation in its corresponding gene.

In both cases, it is a mutation in the DNA (the macromolecule).
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Describe the relationship among proteins, genes, and traits in living organisms.
Mila [183]
Is that they all have the same routine 
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This is an animation of gel electrophoresis. which of these dna molecules is the shortest?
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In electrophoresis, the molecules travel between the positive electrode and the negative electrode carried by the current that is generated between them.
As seen in the image below, short fragments, due to their smaller size can travel faster than the longer fragments, so the fragments that have traveled the furthermost are the shortest. (marked E in the image)

6 0
3 years ago
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