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Effectus [21]
3 years ago
12

Protein X is a protein that is composed of four subunits of equal size--alpha, beta, delta, and gamma--that are bound by either

noncovalent interactions or disulfide bridges. Only the beta and delta subunits are bound to each other by disulfide bridges. How many bands would you expect to see in an SDS PAGE experiment in which beta-mercaptoethanol, a reducing agent, is used?
Biology
1 answer:
Sphinxa [80]3 years ago
3 0

Answer:

One.

Explanation:

SDS (sodium dodecyl sulfate) PAGE ( Polyacrylamide gel electrophoresis) is the technique of the separation of the molecules on the basis of their molecular weight.

The beta-mercaptoethanol reduces and break the disulfide bonds present in the protein. When the protein X with the beta-mercaptoethanol is allowed to run on the gel, only one band will visible all the subunits have equal weight and will present at the same location on the gel.

Thus, the answer is one.

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If a molecule is to large or polar and cannot easily diffuse into the cell, it is
Eddi Din [679]

Answer:

hydrophilic

Explanation:

Large polar or ionic molecules, which are hydrophilic, cannot easily cross the phospholipid bilayer. Charged atoms or molecules of any size cannot cross the cell membrane via simple diffusion as the charges are repelled by the hydrophobic tails in the interior of the phospholipid bilayer.

7 0
3 years ago
Thale cress is a plant that is genetically engineered with genes that break down toxic materials. Which type of organism is desc
MArishka [77]
The correct answer for the given question above would be option B. Thale cress <span>is a plant that is genetically engineered with genes that break down toxic materials, so this would be a transgenic type of organism. By definition, transgenic organisms undergone genetic engineering wherein genes of a particular specie is modified or transplanted into another. Hope this helps.</span>
5 0
3 years ago
Read 2 more answers
What is the value of numC at the end of this loop? numC = 12 while numC &gt; 3: numC = numC / 2 numC =
klio [65]

Answer: 3

Explanation:

Given :

numC = 12

while numC > 3:

numC = numC / 2

Initial value of numC = 12

The condition checks if the value of numC is greater than 12, only then will the statement be executed and the loop isn't altered

numC = 12 is greater Than 3 ;

numC = numC/2 = 12/2 = 6

numC is now 6 ;

numC = 6 is greater than 3

numC = numC / 2 = 6/2

numC is now 3

numC = 3 is not greater than 3 ; hence, loop terminates (condition isn't met)

Hence , numC = 3

3 0
3 years ago
What is the gas produced and how could you demonstrate that
tresset_1 [31]

Answer:

The foaming in the elephant toothpaste demonstration means that a gas is produced. Production of a gas is a clue that a chemical reaction has occurred. The water vapor in the genie-in-a-bottle demonstration also shows the production of a gas.

6 0
3 years ago
What causes surface runoff?
HACTEHA [7]

Answer:

C

Explanation:

Runoff occurs when there is more water than land can absorb. The excess liquid flows across the surface of the land and into nearby creeks, streams, or ponds. ... Glaciers, snow, and rain all contribute to this natural runoff. Runoff also occurs naturally as soil is eroded and carried to various bodies of water.

3 0
2 years ago
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