Answer:
DNA is negatively charged. When an electrical current is passed through a gel, the DNA is repelled by the nearby negative current and pushed across the gel towards the positively charged side.
Explanation:
Electrophoresis has become a standard molecular biology technique. This technique is based on the use of a constant-uniform electric field that enables the separation and identification of DNA fragments with different lengths, which form bands in the electrophoresis gel. Electrophoresis can be used to analyze not only DNA, but also RNA and proteins. During electrophoresis, the fragments of DNA that are negatively charged will migrate towards the positively charged electrode, where the duration of this movement will depend on the size of the DNA fragment, as well as of the pore size in the gel.
Direct Observation. Hope this helps!
Answer:
I think an image is missing from this question
Answer:
Venus is the second planet from the sun and has a temperature that is maintained at 462 degrees Celsius, no matter where you go on the planet. It is the hottest planet in the solar system. ... This thick atmosphere makes the surface of Venus hotter because the heat doesn't escape back into space.
The answer is RNA polymerase binds to a promoter region of DNA.
A promoter region of DNA is the site of initiation of gene transcription. For transcription to start, firstly, RNA polymerase must bind to a promoter region of DNA. RNA polymerase is an enzyme responsible for a synthesis of RNA and it enables nucleotides to covalently link together. When RNA polymerase reaches a terminator region, premature RNA frees. Further, <span>introns are edited out of the premature RNA, and mature RNA is synthesised.</span>
