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DIA [1.3K]
2 years ago
10

The complex of dna and protein that makes up a eukaryotic chromosome is properly called __________.

Biology
1 answer:
Burka [1]2 years ago
4 0

The complex of DNA and protein that makes up a eukaryotic chromosome is properly called chromatin.

<h3>What is the structure and function of chromatin?</h3>
  • Eukaryotic cells nuclei include a combination of macromolecules called chromatin, which is made up of DNA, RNA, and protein.
  • Heterochromatin (condensed) and euchromatin are the two types of chromatin (extended).
  • The main proteins that make up chromatin are termed histones, which act as bases for the DNA to wrap around to form the "bead-like" structures known as nucleosomes.
  • A nucleosome is made up of 147 base pairs of DNA wrapped around an octomer, which is a collection of 8 histones.
  • The chromatin fibre can be created by further folding the nucleosome.
  • To create chromosomes, chromatin fibres are coiling and condensing.
  • Numerous cellular functions, including DNA replication, transcription, DNA repair, genetic recombination, and cell division, are made possible by chromatin.

Learn more about chromatin here:

brainly.com/question/11073325

#SPJ4

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Question 1
Alex17521 [72]
We call DNA blue print bcuz it copies everything. So I think it’s Choice 1
8 0
3 years ago
What is the mechanism(s) that bordetella pertussis uses to invade epithelial cells in the lungs?
MaRussiya [10]

The mechanism of action of  Bordetella pertussis is to stop the cilia of epithelial cells from beating.

<em>Bordetella pertussis</em> is a pathogenic, gram-negative bacteria. It is the causative agent of highly communicable respiratory disease known as pertussis or whooping cough.

The mechanism of action of  Bordetella pertussis:

  • This bacterium colonizes the ciliated epithelial cells of the respiratory airways of the host.
  • A surface protein on the bacteria called filamentous haemagglutinin adhesin binds to sulfatides on the cilia of epithelial cells. When the bacterium is anchored, it releases tracheal cytotoxin, which prevents the cilia from beating.
  • As a result, the cilia in an organism's lungs are unable to sweep out foreign material, and the body reacts by causing the host to cough. When people cough, bacteria are released into the air, where they might spread to other hosts.
  • Another toxin called the pertussis toxin, often known as PTx, prevents adenylate cyclase from using ATP to convert to cyclic AMP. This results in over-conversion of  ATP to cyclic AMP, which may interfere with cellular signaling systems. As a result, phagocytes are unable to respond to an infection effectively.

Know more about <em>Bordetella pertussis</em> here:

brainly.com/question/13960645

#SPJ4

6 0
2 years ago
Which of the following terms describes a space object that lands on Earth? (2 points)
Pie

Answer:

Your answer is meteorite, because it survives the pressure from the atmosphere so it can land on earth without being destroyed.

Explanation:

5 0
3 years ago
Which of the following best explains how a dissecting microscope difference from a compound light microscope
coldgirl [10]

Answer:

Dissecting microscopes are for viewing the surface features of a specimen, and compound microscopes are designed to look through a specimen.

Explanation:

7 0
3 years ago
Can anyone pleaseeeee help me like please!!!!!!!!!! :(((
Otrada [13]

Answer:

I think its D

Explanation:

because the mitochondria makes energy and the cell wall lets things in and out of it

5 0
4 years ago
Read 2 more answers
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