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almond37 [142]
1 year ago
10

E. coli bacteria was spread on both agar plates and incubated for 24 hours. if you wanted to grow up a large quantity of strepto

mycin resistant e. coli, what would you do next?
Biology
1 answer:
ollegr [7]1 year ago
3 0

If you want to grow up a large quantity of streptomycin-resistant E. coli, you would require to pick a colony of the bacteria from the streptomycin-positive plate and allow to grow it on a streptomycin positive plate.

<h3>What is E. coli?</h3>

E. coli may be defined as a type of bacterium that is commonly present in the intestinal regions of humans and other animals, some strains of this bacterium can significantly cause severe food poisoning.

The strain of streptomycin-positive is those population of E. Coli which is significantly streptomycin resistant, while the negative strain has the opposite effect.

That's why if you want to grow up a large quantity of streptomycin-resistant, you must remarkably require to pick only a positive strain of streptomycin for E.Coli bacterium.

Therefore, if you want to grow up a large quantity of streptomycin-resistant E. coli, you would require to pick a colony of the bacteria from the streptomycin-positive plate and allow to grow it on a streptomycin-positive plate.

To learn more about E. Coli, refer to the link:

brainly.com/question/9046057

#SPJ4

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30 POINTS PLEASE HELP
Arlecino [84]

<u>changes </u><u>in </u><u>abiotic </u><u>factors</u> is the most appropriate answer for this question.

Hope it helps you...

(by Benjemin)

3 0
3 years ago
The largest amount of carbon dioxide is transported in the bloodstream in the form of carbonic anhydrase. True False
motikmotik

Answer: False, it is transported as bicarbonate

Explanation: Carbonic anhydrase is an enzyme belonging to the family of metalloenzymes that catalyzes the conversion of carbon dioxide and water to ions and carbonic acid. This enzyme is found in red blood cells where carbon dioxide enters by diffusion. Once it diffuses through it is then converted by carbonic anhydrase to bicarbonate and hydrogen ions.

That is how its transported in bloodstream, passes through the heart via the venous system, to the lungs. Therefore the answer is False.

5 0
3 years ago
A biochemist isolated and purified molecules needed for dna replication. Whne she added some dna, replictation occursd but the d
liberstina [14]

Answer:

She left Ligase enzyme out of the mixture.

Explanation:

DNA replication is the process of formation of new molecules of DNA from the existing one. This process occurs in semiconservative way i.e each new strand consist of one newly synthesised strand and one old parent strand that act as template for the formation of new strand. replication on one strand occurs continuously from 5 prime to 3 prime but on other strands it occurs discontinuously from 5 prime to 3 prime because DNA polymerase moves only in one direction from 5 prime to 3 prime. Hence in discontinuous strands gaps remained. These gaps are filled by Ligase enzyme.

Requirements for DNA replication:

DNA replications needs

Primers

DNA Polymerase enzyme

DNA helicase enzyme

Single nucleotide binding protein

dNTPs

and Ligase enzyme.

Correct choice:

She left Ligase enzyme out of the mixture.

3 0
3 years ago
Why are protists like animals ? A. They move and catch their food , B, they move and make their own food , C. They move and are
blagie [28]
<span>A. They move and catch their food </span>
3 0
4 years ago
Suppose a disease spread through all the red oak trees in a forest economic.
kupik [55]
A: if the oak trees are I'll then it would affect their health which they'll star dying which means that all the biotic organisms that depended on those oak trees for shelter would also start dying which means all the organisms that depended on the oak tree organisms would also die and so on. That way this small change will affect the whole animal community in that area.
B: this change in biodiversity will greatly affect the sustainability of the forest because the animals dying would disrupt the food chain in that ecosystem while killing the whole forest.
6 0
3 years ago
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