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Kruka [31]
2 years ago
5

1. Which is a characteristic of pseudoscience?(1 point)

Biology
1 answer:
Morgarella [4.7K]2 years ago
7 0

Answer:

1) testable claims

2) What happens to us after we die? How did so much life appear on our planet when others seem devoid of any species at all? Who, if anyone, pulls the strings of our universe? Is it some all-powerful god in control or are there physical and mathematical principles driving the engine of our existence?

3)

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Which statements about the modification of chromatin structure in eukaryotes are true? Select all that apply. View Available Hin
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The correct answers are:  

  • Methylation of histone tails in chromatin can promote condensation of the chromatin.
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  • Acetylation of histone tails is a reversible process.
  • Some forms of chromatin modification can be passed on to future generations of cells.  
  • Acetylation of histone tails in chromatin allows access to DNA for transcription.

Histone modifications are post-translational modifications of histone protein that can affect gene expression by altering chromatin structure or recruiting histone modifiers.The most common modifications are methylation, phosphorylation, acetylation and ubiquitylation. All of them affect the binding affinity between histones and DNA and thus loosening (gene activation) or tightening (gene repression) the condensed DNA.

Histone methylation is a transfer of methyl group by histone methyltransferases to lysine or arginine amino acid of protein. Effect of methylation depends on the type of protein that is modified. Demethylation is the reverse process.

Histone acetylation is the process of adding of an acetyl group(by  histone acetyltransferases) to histone proteins and it can also activate or inhibit the gene expression. Deacetilation is reverse process.

7 0
2 years ago
Most meteorites contain iron and nickel and are therefore
nevsk [136]
I think the answer to your question is Magnetic.
4 0
3 years ago
Altered mental status, which often accompanies a diabetic emergency, can easily be confused with what??
sukhopar [10]

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I would go with number 1 or number 2

8 0
3 years ago
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During what stage of the cell cycle will a cell release cdks to initiate the events for cell division
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How does the structure of a DNA sequence determine the function of a protein​
Ede4ka [16]

Answer:

Shape

Explanation:

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Hope this helped!

Have a supercalifragilisticexpialidocious day!

4 0
3 years ago
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