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Feliz [49]
3 years ago
13

Chromatin of eukaryotes is organized into repeating interactions with protein octomers called nucleosomes. Nucleosomes are compo

sed of which class of molecules?
Biology
1 answer:
Katyanochek1 [597]3 years ago
7 0

Nucleosomes are composed of "histones" class of molecules.

<u>Explanation:</u>

Histones usually presented in eukaryotic nuclei of cells which seemed as strong level of proteins that bundle and organize DNA into structural groups called nucleosomes in biological science.

They are chromatin's chief protein elements, functioning as spools along which DNA spins, and playing a major role in regulating genes. Five forms of histones have been recognized:

  • H1 (or H5), H2A, H2B, H3, and H4;
  • H2A, H2B, H3, and H4 are the main histones and H1 and H5 are the linker histones.
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Irradiated food may be dangerous because it contains low levels of radioactive compounds.
USPshnik [31]

Answer: False

Explanation:

Food irradiation is a process in which the food is exposed to the treatment of radiations. This helps in increasing shelf life and decreasing the colonization of the pathogens on the food. This process does not make the food radioactive.

5 0
3 years ago
In eukaryotes there are several different types of rna polymerase. which type is involved in transcription of mrna for a globin
mariarad [96]
In eukaryotes there are several different types of RNA polymerase. RNA polymerase II is involved<span> in transcription of MRNA for a globin protein.</span>
4 0
3 years ago
A species that is likely in the near future to become endangered would best be characterized as which of the following?
andriy [413]
Threatened is the definition used when describing a species at risk of extinction
8 0
3 years ago
Read 2 more answers
What does topography show?
muminat

Answer:

I. The landforms such as valleys, volcanoes, hill, plateau, etc., in a geographical area or region.

II. The shape of the land.

Explanation:

In Geography, topography can be defined as the shape and structure of the Earth surface. Thus, a topographic map is used to graphically describe this features.

A topographic map can be defined as an accurate and detailed graphical (two-dimensional) description, representation or records of both natural and man-made (artificial) features on the surface of the Earth.

A topographic map is a two-dimensional model that uses contour lines to represent points of equal elevation above sea level such as mountains, hills, plains, valley etc.

The two-dimensional model of a topographic map graphically represents the height of a mount and the steepness of a slope through the use of contour lines.

Contours can be defined imaginary lines used for connecting locations that are having similar elevations on the Earth's surface.

Hence,a topography show two (2) main things and these includes;

I. The landforms such as valleys, volcanoes, hill, plateau, etc., in a geographical area or region.

II. The shape of the land.

8 0
3 years ago
Recall what you know about nervous tissue to answer the following questions. Nervous tissue can generate and conduct ____ signal
Dimas [21]

Answer:

Nervous tissue can generate and conduct <u>electrical</u> signals that control the body.

Explanation:

The neuron is the specialized cell that provides function to nerve tissue. Given the structure of the neuron, this cell is capable of creating and conducting information in the form of electrical impulses or signals, by depolarizing its cell membrane and generating action potentials.

The information generated and transmitted by the neurons allows the nervous system to obtain internal and external information of the organism, as well as to control all the body functions.

<em>     The other options are not true because nerve tissue does not generate or conduct </em><em>thermal </em><em>or</em><em> chemical </em><em>signals to perform its function.</em>

5 0
2 years ago
Read 2 more answers
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