A major volcanic belt known as the ______ circles the Pacific Ocean.

1 answer:

3 0

A major volcanic belt known as the ring of fire circles the Pacific Ocean. The Pacific Ring of Fire is an area where a large number of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean.

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Arrange the following events for the synthesis of RNA in the correct order: Nucleophilic attack of the 3′ OH group of the first

AnnyKZ [126]

Answer:

4, 3, 5, 2, 1

Explanation:

The process of syhthesis of protein is called trancription.

The proces sf transcription begin with the binding of RNA polymerase enzyme with a sequence of DNA called the promoter.
RNA polymerase allows the unwinding of DNA bases forming a stable complex.
In the next step, a Mg2+-dependent isomerization occurs, that produces a modified form of the open- promoter complex.
RNA polymerase has one nucleoside triphosphate binding site which helps during elongation and binds any of the four common ribonucleoside triphosphates (rNTPs).
Then a nucleophilic attack of the 3' hydroxyl (OH) present at the first nucleotide on the a - phosphorus gorup of the second nucleotide 5' triphosphate occurs that forms the first phosphodiester bond.

Hence, the correct order is 4, 3, 5, 2, 1.

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3 years ago

Which is an example of a pioneer species?

hammer [34]

Answer:

lichen

Explanation:

Common examples of pioneer species include bacteria, lichen, mosses, and fungi.

3 0

2 years ago

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