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natima [27]
3 years ago
15

A scientist engineers a virus that contains the gene thought to provide bacterial resistance to the antibiotic vancomycin. The s

cientist then takes a culture of bacteria and divides it in two. One portion is allowed to incubate with the previously mentioned virus, while the other is not. Both bacterial cultures are then placed onto petri plates whose media contain vancomycin. Only the culture grown previously with viruses shows growth of bacterial colonies. How did these bacteria FIRST come to have resistance to this antibiotic? Selected Answer: Transformation Bifurcation Transduction Transformation Conjugation
Biology
1 answer:
ikadub [295]3 years ago
3 0

Answer:

Transduction

Explanation:

Bacteriophages (or phages) are viruses known for its ability to contaminate and become a parasite in a bacteria. These phages can pass its DNA from a single bacterium to another bacterium, via a means referred to as genetic transduction.

This is believed to be the centre route through which bacteria evolve and possess the antibiotic resistance and virulence factors that increases the formation of new and an increasingly more pathogenic strains.

The mechanisms of genetic transduction includes generalized and specialized transduction.

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polygenic inheritance your welcome

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Discussion/Conclusion
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Answer:

Due to small in size.

Explanation:

Some organelles such as nucleus, mitochondria and Golgi bodies can't be seen because they are too small in size and near to the limit of the microscope. Organelles present in plant cell are nucleus, mitochondria and Golgi, endoplasmic reticulum, ribosomes, one big vacuole, cell membrane and cell wall whereas organelles present in animal cell such as nucleus, mitochondria and Golgi bodies, endoplasmic reticulum, ribosomes, lysosomes, several small vacuoles and cell membrane. In animal cell centriole and lysosomes are present and absent in plant cell while in plant cell, cell wall and one large vacuole present in the center of the nucleus and these organelles are absent in animal cell. Plant and animal cells are eukaryotic because they have organelles and surrounded by membrane.

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3 years ago
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scoray [572]

Answer:

B. Molecules are moved against the concentration gradient.

Explanation:

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6 0
4 years ago
Do all planets move in the same way and the same speed
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no

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The correct answer to the question is Biofuel

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Biofuel can be used as an alternative energy technology source to power a car.

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The biofuels that can be used are butanol,ethanol and biodiesel etc.

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