For some time it was not clear whether lac repressor inhibits lac operon transcription by inhibiting the binding of RNA polymera
se to its promoter or by allowing transcription initiation but blocking elongation past the site of bound repressor. How might you distinguish between these possibilities? Fill in the blanks with the options given to complete the following sentences.
in one gel, in separate gels, Northern blot, repressor, Western blot, inducer
Incubate a plasmid containing the lac operon with lac ________. Then add RNA polymerase and Northern blot analyze the mixture by gel electrophoresis and probe the gel ________ with antibodies to RNA polymerase and repressor ________.
Incubate a plasmid containing the lac operon with lac __REPRESSOR______. Then add RNA polymerase and Northern blot analyze the mixture by gel electrophoresis and probe the gel _WESTERN BLOT_______ with antibodies to RNA polymerase and repressor _IN SEPERATE GELS_______.
Explanation:
Incubate a plasmid containing the lac operon with lac __REPRESSOR______. Then add RNA polymerase and Northern blot analyze the mixture by gel electrophoresis and probe the gel _WESTERN BLOT_______ with antibodies to RNA polymerase and repressor _IN SEPERATE GELS_______.
Explanation: belonging to the domains Bacteria and Archaea. Prokaryotic cells are much smaller than eukaryotic cells, have no nucelus, and lack organelles. All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made of polysaccharide.
The reason behind S-waves' shadow being larger than P-waves' shadow zones is because S-waves cannot move through liquids or soft solids such as Earth's Core.
If you have any other questions I would be happy to answer them.
Answer:C. Creating helium from hydrogen in its core
Explanation: Stars produce energy majorly by nuclear fusion. The process of creating helium by merging hydrogen atoms to produce deuterium which in turn is converted to helium.
