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3 years ago

What protein molecules does DNA wrap around to form a nucleosome

Chemistry

1 answer:

Delvig [45]3 years ago

4 0

Answer:

Histone proteins.

Explanation:

Histones are known as the special type of proteins which are +ve charged and low molecular in weight. They are highly basic proteins and containing basic amino acids such as arginine and lysine. Histones are +ve charged proteins and DNA is -ve charged in nature, due to the presence of phosphate groups in DNA backbone, histones bind with DNA very tightly and form a complex known as Nucleosome.

The Nucleosome is known as the fundamental unit of DNA packaging which is composed of an Octameric core of histone proteins (two each of histones H2A, H2B, H3, and H4) around which the double helix of DNA is wrapped.

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In a study of the following reaction at 1200 K it was observed that when the equilibrium partial pressure of water vapor is 15.0

sp2606 [1]

Answer:

The value of $K_p$ for this reaction at 1200 K is 4.066.

Explanation:

Partial pressure of water vapor at equilibrium = $p^o_{H_2O}=15.0 Torr$

Partial pressure of hydrogen gas at equilibrium = $p^o_{H_2}=?$

Total pressure of the system at equilibrium P = 36.3 Torr

Applying Dalton's law of partial pressure to determine the partial pressure of hydrogen gas at equilibrium:

$P=p^o_{H_2O}+p^o_{H_2}$

$p^o_{H_2}=P-p^o_{H_2O}=36.3 Torr- 15.0 Torr = 21.3 Torr$

$3 Fe(s) 4 H_2O(g)\rightleftharpoons Fe_3O_4(s) 4 H_2(g)$

The expression of $K_p$ is given by:

$K_p=\frac{(p^o_{H_2})^4}{(p^o_{H_2O})^4}$

$K_p=\frac{(21.3 Torr)^4}{(15.0 Torr)^4}=4.066$

The value of $K_p$ for this reaction at 1200 K is 4.066.

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3 years ago

Who wants to talk till 1am? hmu:)

Ulleksa [173]

Answer:

Explanation:

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3 years ago

Why teflon is not a mineral

MAXImum [283]

Answer: The actual name Teflon® is a brand/trademark name of the DuPont Corporation used

Explanation:

5 0

3 years ago

What is the molecular shape of HCN?<br> bent<br> linear<br> angular<br> trigonal pyramidal

mario62 [17]

HCN is a linear molecule.

5 0

3 years ago

Read 2 more answers

Why do scientists need to be good communicators???

Alecsey [184]

Answer:

Hope this helps and plz mark me the brainliest

Explanation:

When scientists are able to communicate effectively beyond their peers to broader, non-scientist audiences, it builds support for science, promotes understanding of its wider relevance to society, and encourages more informed decision-making at all levels, from government to communities to individuals.

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3 years ago