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serg [7]
3 years ago
7

Bacterial cultures are sometimes exposed to ultraviolet (UV) light in order to generate organisms with new genetic traits. Why d

o microbiologists choose to use UV light for this purpose?
Biology
1 answer:
const2013 [10]3 years ago
7 0
<h2>Ultraviolet (UV) Light</h2>

Explanation:

  • <em>Ultraviolet germicidal irradiation (UVGI)</em> is a purification technique that  inactivate microorganisms and the short wavelength ultraviolet (UV-C) light to execute by destroying nucleic acids and upsetting their DNA, leaving them incapable to vital cellular functions.
  • <em>Ultraviolet (UV) light kills cells damaging their DNA</em>
  • <em>The subsequent thymine dimer is very stable,</em> however fix of this sort of DNA harm for the most part by extracting or expelling the two bases and filling in the holes with new nucleotides is fairly efficient.
  • UV light applies its mutagenic impact by energizing <em>electrons in atoms</em>
  • <em>The excitation of electrons in DNA atoms regularly brings about the development of extra bonds between contiguous pyrimidines (explicitly thymine) in DNA</em>
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Which cell structure is referred to as the gatekeeper because it directs substances to move into and out of the cell? a cell wal
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Name three organism in the food web that are carnivores
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Three organism in the food web that are carnivores are hawk, snake, and frog

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3 years ago
Célula vegetal en donde se encuentra
kompoz [17]

Respuesta:

Se encuentran en las hojas y llevan a cabo la fotosíntesis y la respiración celular, junto con otros procesos metabólicos.

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A menos que hables de una cierta parte de la célula vegetal (ejemplo: el cloroplasto o la pared celular) esta respuesta es correcta.

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7 0
2 years ago
If the blood pressure in your brain is 120 mm when you are lying down, what would it be when you stand up? Assume that your brai
Mashutka [201]

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The correct answer is 88.84 mmHg.

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The pressure differential between the brain and the heart while standing up will be 120 - rho × g (gravity) × h, here h is the distance from the brain to the heart. The h is 40 cm or 0.4 m.  

rho×g×h = 1060 kg/m³×9.8 m/s²×0.4m  

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6 0
3 years ago
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