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VARVARA [1.3K]
3 years ago
12

Joshua cut his knee while rock climbing. The next day, the cut was red and swollen, and pus was present in the area of the cut.

What caused the pus to form?
A. macrophages excreting medicinal material
B. the death of macrophages
C. antigens trying to infect the area
D. blood cells losing their hemoglobin
Biology
1 answer:
PtichkaEL [24]3 years ago
7 0
The death of macrophages?
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Circle the recombinant DNA constructs below:
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The correct answer is that a bacteriophage lambda chromosome containing the human collagen gene, because Recombinant DNA is the name given to DNA molecules that have part of DNA derived from two or more sources, usually these sources are different species. Recombinant DNA technology is also known as molecular cloning or even gene cloning.

B. A bacteriophage lambda chromosome containing the human collagen gene

<h3>How is recombinant DNA produced?</h3>

Obtaining recombinant DNA is based on the molecular cloning technique. The process can be summarized as follows:

  1. The first step is to isolate a DNA fragment, which contains the gene of interest. Remember that each gene makes a protein.
  2. The gene of interest, now isolated, is placed in a medium with a fragment of circular bacterial DNA, the plasmid and the restriction enzymes.
  3. The bacterial plasmid has the ability to insert a fragment of DNA external to its own genome.

<h3>What is DNA and what is it for?</h3>

DNA is the structure responsible for the transmission of all genetic characteristics — such as eye, skin and hair color, physiognomy, among others — in the process of reproduction of living beings. Thus, the main function of DNA is to transport information contained in its sequences, called genes.

Learn more about DNA in brainly.com/question/264225

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1 year ago
Select all that apply. Which organisms can reproduce using the process of fragmentation? flowers flatworms fish starfish
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The answer is commensalism.

<span>Commensalism is a relationship between two organisms in which only one of them has benefit, and the other one is not affected (it has no harm or benefit).
</span>In this example, clownfish has the benefit - it is protected from predators by sea anemones. <span>The sea anemone isn't harmed and doesn't benefit from this relationship. Hence, this is the example of commensalism.</span>
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Explanation:

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Answer:

B) between the Persian Gulf and the Gulf of Oman

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