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Answer: size</h2>
Gel electrophoresis is called to the technique used by scientists for analytical purposes, in life sciences laboratories to separate macromolecules (DNA, RNA, and proteins from various sources).
The process consists of separating the molecules according to their <u>size</u> and <u>electric charge</u>. This is done with a gel (a gelatinous substance extracted from seaweed, called <em>agarose</em>) of controllable porosity placed in an ionic buffer environment. This is how the gel acts as a molecular sieve that separates larger molecules from the smaller ones, because each molecule has different size and charge and will move through the gel at different speeds.
That is, the smaller molecules move more quickly through the gel while the larger ones are left behind.
The image is missing, so i have attached it.
Answer:
Correct answer is Option C - Ticking clock
Explanation:
Sound waves are formed when a vibrating object makes the encompassing medium to vibrate. Where the medium is the material in which the wave goes through. Sound waves comprise of zones of high and low weight called compressions and rarefactions, separately.
Now, in this question, the image given is one of compression and rarefactions. Looking at the options given, the correct option that produces such a wave is Ticking clock because Sound energy travels through air in waves and when an alarm clock rings, nearby air molecules vibrate. The air molecules jiggle about and cause neighbouring molecules to vibrate as well, thereby starting a wave of energy that travels out from the clock. The wave of sound travels in a pattern of compressions (where the air molecules are squeezed together) and rarefactions (where the air molecules are stretched apart).
The right answer is
2) NaCl
In fact, from the definition of acid, all acids contain at least one atom of hydrogen. In the options given by the problem, all compounds contain at least one atom of hydrogen H, except for the NaCl: therefore, NaCl is not an acid.
Answer:
probably liquid cause it can be contained easily