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marin [14]
2 years ago
10

Confusin help pls ??????????

Biology
1 answer:
valentinak56 [21]2 years ago
8 0

Answer:

D, think of chemical changes. When iron rusts it is chemically changed. The other answers are a change in form or a property of iron.

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Sigma factors bind to the promoter region of a particular gene and facilitating the binding of RNA Polymerase to the promoter region (formation of the RNA polymerase holoenzyme complex) in order initiate transcription of the gene.

Put simply - Helps RNA Polymerase do it's job.

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A meteorite is determined to be 4.5 billion years old. It now has 78 atoms of lead-206. Assuming no loss of daughter isotopes, h
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What is attached to rough ER
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