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Illusion [34]
4 years ago
6

10.LID)..

Biology
1 answer:
kherson [118]4 years ago
5 0

Answer:

Climate change?

Explanation:

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What was the purpose of placing the drop of distilled water onto the slide before smearing the bacterial colony onto the slide?
12345 [234]

Answer:

1. In order to fix the bacterial to the slide;

<u>so that it will not be lost during the staining procedure.</u>

<u>so that false impression  or result will not be given by the bacteria in water,</u>

<u>Distilled water is used to prevent contamination with impurities  e,g metals ions and crystals</u>.

Explanation.

In smear preparation; the bacterial cells should also be well dispersed,so that they do not clumped together to form' big glob'.(large round masses) The later affect clear field view of the bacterial mophology, affected staining,  and therefore  gives inaccurate results,

Fixing to the slide also affects the morphology of bacterial cells, through shrinking in size, which can lead to loss of structural characteristics and extra-cellular matrixes,

4 0
4 years ago
Identify the genetic event that resulted in the original antibiotic resistance in some strains of bacteria
julsineya [31]

Hi

Mutations are responsible for increasing the antibiotic resistance of some bacterial strains.

As we know that antibiotics are the drugs that target specific strain or type of bacteria, and kill them. These are designed against specific disease causing gene of that bacteria strain. However, as the genome of bacteria is very small in size, and bacteria undergo hundreds of multiplication events in very small span of time. Therefore, upon replicating, there occur chances of mutations in genetic sequence of bacteria.

When the genetic sequence of bacteria is changed even by one base, the drug wont be able to target and kill that strain of bacteria. And researchers need to design new antibiotic against new strains of bacteria.

Antibiotics resistance has become huge issue across the world as it takes alot of time (years) to design and approve an antibiotic.

Hope it help!

5 0
4 years ago
Gas exchange of CO2 for oxygen occurs between capillaries and what structure in the lungs? A. Veins B. Alveoli C. Bronchioles D.
Talja [164]

Answer:

B: Alveoli.

Explanation:

6 0
3 years ago
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The DNA sequence was TACGATACA, what would be the mRNA sequence <br><br> made?
nordsb [41]

Answer:Explore the relationship between mRNA and DNA, how to determine DNA sequences based on mRNA sequences, and how to determine mRNA by the DNA

Explanation:

6 0
3 years ago
How did the government’s policy of aliases fairs contribute to the growth of the american economy
nikdorinn [45]

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They allowed businesses to operate with few regulations. 

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3 years ago
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