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GrogVix [38]
3 years ago
9

A front forms when _____ .

Biology
1 answer:
solniwko [45]3 years ago
6 0

when a  cold front overtakes a warm front

when two different air masses meet. A front is usually either cold or warm based on the way the masses are colliding which can either result in a drop or an increase in temperature. This is useful because this is how cyclones work and this can help with seeing precipitation patterns that will occur.

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Select the true statements about SDS‑PAGE, a method of separating proteins. Assume that SDS‑PAGE is performed under reducing con
bazaltina [42]

Answer:

The correct statements are options C, E and F.

Explanation:

The SDS-PAGE refers to a broadly utilized technique for distinguishing proteins. The SDS or the sodium dodecyl sulfate refers to an ionic detergent. The SDS-protein complexes possess negative charge with identical charge to mass ratio such that when the proteins are run on the gel they are distinguished on the basis of their size.  

As the SDS entices a negative charge to the proteins, the migration of the proteins takes place towards the positive electrode. The migration of protein takes place on the basis of the size. Thus, smaller proteins seem to migrate quickly via the gel in comparison to the bigger proteins. The binding of the protein takes place with about 1.4 times its mass of SDS resulting in the formation of a large overall negative charge.  

4 0
3 years ago
Venus is an average distance of 108.2 million kilometers from the Sun. Use the conversion factor 1 AU = 1.5 × 108 km to convert
jasenka [17]

108.2\ million \km = 108.2*10^6\ km = 1.082*10^8\ km Using a proportion: \frac{1,082*10^8}{1,5*10^8} = 1.082/1.5 = 0.72 AU

Answer: A) 0.72

8 0
3 years ago
Which description applies to alternative mrna splicing?
Taya2010 [7]
The answer is: <span>processing of exons in mRNA that results in a single gene coding for multiple proteins.
</span>

RNA splicing is an important stage in gene transcription. mRNA transfers the information from DNA to proteins.  In many cases, this process creates multiple  proteins from the same gene by varying the exon composition. This is called alternative splicing and can happen because exons are extended or skipped, or introns can be retained instead of being removed.

3 0
3 years ago
The binding of Ach to its muscuranic receptors indirectly affects the permeability of _____ channels which can produce hyperpola
MArishka [77]

Answer:

The binding of ACh to the muscarinic receptor indirectly affects the permeability of K⁺channels. This can produce hyper polarization in some organs if channels are opened, and depolarization in others if channels are closed.

Explanation:

For example, in the heart it is the beta-gamma compound that fixes to the K+ channels of heart muscle and sources them to exposed. This leads to K+ dispersion out of the cell and the cell converts into hyper polarized consequential in a reduction in heart rate. In contrast, in smooth muscle of the stomach the alpha sub unit fixes to K+ channels producing them to close. This decreases the external diffusion of K+ and the cell converts depolarized ensuing in smooth muscle contraction.

3 0
4 years ago
What type of catalysts affect biochemical reactions?
sasho [114]
Enzymes as they are biological catalysts 
8 0
3 years ago
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