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AveGali [126]
4 years ago
8

Helper t (th) cells recognize antigens when they are bound to a(n) __________.

Biology
1 answer:
WITCHER [35]4 years ago
8 0
A cells that is representing the antigen or when the cell is infected

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Place the steps for the formation of the enzyme pepsinogen in the correct order.
Volgvan

The steps for the formation of the enzyme pepsinogen in the correct order is as 1, 4, 2, 3.

Pepsinogen is a chemical that is created by the cells that exist in the stomach. During digestion, pepsinogen is converted into pepsin by the acid in the stomach, and pepsin is responsible for breaking down the proteins in food. The formation steps are as;

Step 1: The DNA strands unwind, and  RNA polymerase binds to the template strand.

Step 2: The synthesis of mRNA begins. The amino acids assemble to form peptide.

Step 3: The mRNA undergoes intron splicing and exits the nucleus.

Step 4: The tRNA moves through mRNA with the activated amino acids attached to it.

The complete question is attached.

You can also learn about Pepsinogen from the following question:

brainly.com/question/29462356

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5 0
1 year ago
Diffusion, osmosis, active transport. all of these are methods by which a cell
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Correct answer: A). Maintains homeostasis.  

Cell transport helps to maintain homeostasis by keeping the conditions inside the body in a normal range in the organism's cells.

Each and every individual cell must maintain homeostasis in order to survive. One of the way by, which cell maintains homeostasis by controlling the movement of a substance across the cell membrane.  

Active transport, osmosis, and active transport are the method of cell transport, which help to maintain homeostasis.



4 0
3 years ago
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Small single strand dna molecules with a fluorescent molecule attached that are used to identify a clone containing a specific g
igor_vitrenko [27]
It is called a probe
3 0
3 years ago
You transform an E. coli bacterium with the pGLO plasmid. After growing the +pGLO bacteria on an LB+Ampicillin+Arabinose plate,
musickatia [10]

Options for the question have not been provided. The complete question has been attached.

Answer:

A. Yes, we will see growth. Yes, they will glow.

Explanation:

pGLO plasmid was engineered to be used as a vector in the field of biotechnology. It has an ampicillin resistance gene which acts as a reporter gene. It also has another reporter gene, GFP which shares its promoter (araC) with the gene responsible for metabolizing arabinose. GFP gene is thus translated only in the presence of arabinose in the medium since the promoter is active only in the presence of arabinose. Once the GFP gene is translated, the colonies glow with green fluorescence under UV light.

Here, the <em>E.Coli</em> colonies were grown successfully on LB + Ampicillin + Arabinose plate so they were ampicillin resistant. They also glowed in UV light. If these transformed colonies are inoculated in another LB + Ampicillin + Arabinose plate they will be able to grow successfully since they are ampicillin resistant. They will also glow because the new plate also has arabinose so the araC promoter will be active and expression of both GFP gene and arabinose metabolizing gene will occur.

3 0
4 years ago
Select the correct statement regarding adipose tissue.
AURORKA [14]

Answer:

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