Describe the function of a vector.

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Accepted Answer

All right. Hello everyone. So this question is asking us which of the following correctly describes the functions of vectors in DNA select all that apply. Now, here we have four different statements which we'll go through individually and four different answer choices labeled a through D proposing which of these statements are correct. So before we talk about these statements individually, recall first and foremost, that vectors are essential for transferring genetic material, that's their function. So what they do is they transfer this genetic material into a host organism. And because of this vectors play an essential role in cloning gene expression and the study of gene function, this also has implications in for example, genetic engineering. So with this context in mind, let's start with option number one or statement, number one, which says that vectors can facilitate the cloning of DNA fragments. For further study. This is true, right? Because as mentioned before, the role of a vector is to carry transfer and replicate DNA fragments within a host cell by facilitating the replication of this DNA. Not only is this helpful for cloning but also for amplifying specific DNA sequences for other research. So number one is true. Number two says that vectors serve as a means to introduce foreign DNA into host cells. This is also true, right? Because this is an in line with the functions stated earlier of a vector which is to transfer genetic material, it's delivering foreign DNA into a host cell for a number of different reasons. Number three says that vectors are responsible for the translation of proteins from DNA. This is not true, right? Because the role of a vector is simply to bring a foreign DNA into a host cell. Now, the translation of proteins from DNA is carried out by ribosomes. And here the Mrna that these ribosomes use for translation is transcribed from the DNA inserted into the vector. So the vector itself doesn't translate the protein from DNA, but it is involved in the transfer of the DNA in the first place. Last but not least. Number four says that vectors can carry antibiotic resistance genes to select for transformed cells. This is true, right? Because here a vector can be used to introduce this foreign antibiotic resistance gene. So that later you can test for whether or not these cells have been successfully transformed. You can do this by exposing the cells to antibiotics to see if this gene was integrated into the host cell. This makes it easier to identify whether or not the transformation has been successful. So here of the statements provided, numbers 12 and four were correct. Which means that option c is our correct answer choice here. And so with that being said, thank you so very much for watching. And I hope you found this helpful.

Describe the function of a vector.

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