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coldgirl [10]
4 years ago
13

How does DNA fold into a chromosome. What are the 6 steps

Biology
1 answer:
Xelga [282]4 years ago
3 0
<span>The essential unit of DNA packaging is the nucleosome. A nucleosome consists of a small amount of DNA wrapped up with protein. The proteins that interact with DNA to form chromatin comprise a family of basic (positively charged) proteins called histones. There are five different types of histone protein: H1, H2A, H2B, H3, and H4. Of these, two molecules each of H2A, H2B, H3, and H4 combine to form a histone octamer. DNA wraps around the octamer, making 1 3/4 turns around the protein complex. The amount of DNA associated with the histone octamer is 146 bp. The octamer plus the DNA comprise what is called the nucleosome core. A small stretch of DNA (60 bp) runs between adjacent nucleosome cores, and is known as the linker. A single nucleosome consists of one core plus a linker. The total amount of DNA involved in a single nucleosome is approximately 206 bp. Chromatin therefore consists of DNA wrapped around one histone octamer after another, like a long string of beads.</span>
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The kilogram (kg) is a measurement of which quantities?
Artemon [7]

Answer:

basic unit of mass

Explanation:

A kilogram is very nearly equal (it was originally intended to be exactly equal) to the mass of 1,000 cubic cm of water. The pound is defined as equal to 0.45359237 kg, exactly.

4 0
3 years ago
Explain what the vertical bars on a climate diagram show
nydimaria [60]
<span>The line plots changes in temperature through the months of a year, and the vertical bars show the
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5 0
3 years ago
3. Which helps the body maintain a stable temperature?
34kurt

Explanation:

sweating and shivering

Hope it helps you

5 0
3 years ago
The rays of light change direction as they enter or leave the lens because of what change in the wave as it enters a different m
STatiana [176]

Answer: speed

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6 0
3 years ago
The more strongly men identify with stereotypical ideas about masculinity, the more likely they are to?
Leno4ka [110]

The more strongly men identify with stereotypical ideas about masculinity, the more likely they are to avoid preventive health care.

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  • In Western culture, characteristics like strength, courage, independence, leadership, and aggressiveness are traditionally considered as being associated with men. Social standards of masculinity are as follows: The concept of "masculinity" refers to the duties, actions, and characteristics that are deemed proper for boys and men in a certain society. Instead of being determined by biology, masculinity is produced and defined socially, historically, and politically.

Learn more about stereotypical ideas here brainly.com/question/23317204

#SPJ4.

3 0
2 years ago
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