1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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>
You might be interested in
Topographic maps represent an area's physical features by describing _____.
kondaur [170]

Answer;

A. shape, elevation, and steepness of features

Explanation;

-A topographic map is a detailed and accurate two-dimensional representation of natural and human-made features on the Earth's surface. These maps are used for a number of applications, from camping, hunting, fishing, and hiking to urban planning, resource management, and surveying.

-These map show the three-dimensional shape of the land. Most topographic maps make use of contour lines to depict elevations above sea level. The contour lines reveal the shape of the land in the vertical direction, allowing the 3-dimensional shape of the land to be portrayed on a 2-dimensional map. Contour lines are drawn on a topographic map to show the location of hills, mountains and valleys.

4 0
4 years ago
Read 2 more answers
Is the shape and direction of a river's flow formed by weathering?
alex41 [277]
Erosion shapes. Lowest level directs.
6 0
3 years ago
The serous membrane covering the stomach and most of the intestines is called the?
Sliva [168]
Peritoneum. 

Hope this helps!
Can u plz mark me as brainliest? I really need it!
3 0
4 years ago
What if earth didn't revolve around the sun, but was rather in a fixed position relative to the sun
dybincka [34]

Answer:

Anything on the trailing side would be pulverized against the Earth. It would be a horrible, gooey mess. But even if the Earth slowed gently to a stop, it would still be a horrible mess. Without the outward centripetal force to counteract the inward pull of gravity, the Earth would begin falling towards the sun.

Explanation:

5 0
3 years ago
2. Codominance: Diricrawls are plump, fluffy-feathered, flightless birds. Feather color
mixer [17]

Answer:

The correct answer is - 50% or 1/2.

Explanation:

In codominance both alleles express their traits and blend to make new traits, there is no dominance or recessive pattern found. In this question, there is FF have pink feathers, PP has purple feathers and mottled diriclaws (FP). Then a cross between pink feathers and mottled diriclaws would produce offspring:

    F     F

F  FF  FF

P  FP  FP

Here two out of four have pink feathers. That is 50%

4 0
3 years ago
Other questions:
  • BEST ANSWER GET BRAINLIEST!!
    11·2 answers
  • The female I-1 and her mate, male I-2, had four children, one of whom has albinism. What is the probability that they could have
    8·1 answer
  • (Science) Why can’t energy be created or destroyed, if the everything else in the universe can be?
    11·1 answer
  • Is a topographic map or a geologic map most useful for drilling a water well
    10·1 answer
  • Which cell component functions like the bones and muscles in the human body?
    15·2 answers
  • Hunting can be dangerous for both predator and prey. What
    9·1 answer
  • Which organisms are tertiary consumers? Check all
    10·2 answers
  • What might happen if cells divide uncontrollably
    13·1 answer
  • What sex would a person with a trisomy x be
    12·1 answer
  • 2. Why was the Land between the Rivers such an important region for the development of early
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!