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kobusy [5.1K]
3 years ago
7

Astrology work, help needed please

Biology
2 answers:
e-lub [12.9K]3 years ago
6 0

I think it's first quater, hope that helped!

nadya68 [22]3 years ago
4 0

Answer:

new moon....................

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describe what happened to China's air pollution between December and March and explain why IN YOUR OWN WORD (hint*, use what the
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The air pollution in china decreases due to less usage of transportation and shutdown of industries.

Explanation:

From December to march, transportation and industrial work is greatly affected due to the corona virus. Due to reduction of activities in both transportation and industries, there is a lot of decrease occurs in the air pollution. We know that smoke produce by vehicles and industries are the main cause of pollution so that's why air pollution decreases between December to march..

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In which ways can the individual steps of this process be regulated to lead to higher or lower expression of a particular protei
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There are many points at which eukaryotic gene expression can be controlled, through pretranscriptional control, transcriptional control, and posttranscriptional control

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The pretranscriptional control determines the accessibility of chromatin to the transcription machinery. It is affected by supercoiling and methylation. It is also known as epigenetic regulation, and it does not depend on the sequence but on the conformation of the DNA.

While transcriptional control determines the frequency and / or speed of transcription initiation through the accessibility of the start sites, the availability of transcription factors and the effectiveness of promoters.

The post-transcriptional control is the one that is exercised once the transcript has finished synthesizing. It can be of several types:

• Maturation control: As the RNA adjustment can be made.

• Transport control: Most RNA has to go out to the cytoplasm to perform its function. For this they have to cross the pores of the nuclear membrane, where you can select the RNAs that will be transported and those that will not.

• Stability control: The half-life of RNA can be regulated by the expression of RNAs or mRNA stabilizing proteins in the cytoplasm.

• Translational control: It is exercised on the frequency with which the mRNAs begin to be translated. It can also affect the frequency with which proteins mature and the availability of enzymatic effectors.

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Give me a riddle and i will awnser it<br>best riddle gets brainliest
djyliett [7]

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What has a head and a tail but no body?

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Explanation:

have a wonderful day! :)

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