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Flauer [41]
4 years ago
13

Identify the best description of a heme group.

Biology
1 answer:
Fed [463]4 years ago
8 0
I would say d. Multi-part protein that reversibly binds to oxygen molecules (...)
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Complete the sentence. two positive charges ___________ each other
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The antibiotic rifampicin blocks transcription in many bacteria. In the presence of the antibiotic, adding sigma factor has no s
mariarad [96]

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transcription initiation

Explanation:

Transcription is a process by which genetic information from DNA is used to synthesize an RNA molecule, usually, a messenger RNA (mRNA), which is subsequently utilized to synthesize a protein by a process called translation. Transcription in prokaryotes has three steps:

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2-Elongation. The sigma σ factor of the holoenzyme is released and the complex and the core enzyme (α2 ββω) moves along the template strand, thereby producing an mRNA sequence

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In consequence, Rifamycin is likely to block the initiation of transcription because the core RNA enzyme needs to bind the sigma factor (σ) for initiation of transcription in bacteria.

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3 years ago
Where Is Alpine Tundra Found? How Does It Differ From Arctic Tundra?
sergeinik [125]
Alpine Tundra are found at the tops of tall mountains.
 

And it differs because the <span>Arctic refers to Northern latitudes, alpine refers mountainous regions.</span>
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