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notsponge [240]
3 years ago
11

What is the purpose of having ampicillin in the plate?

Biology
1 answer:
svp [43]3 years ago
6 0

Answer:

Ampicillin in a plate do as to help in maintaining ampicillin resistance plasmid in the growing medium

Explanation:

Ampicillin is an antibiotics that help to kill E.coli bacteria .

While growing bacteria in a plate or growing medium, it is important to add ampicillin to the plate so to maintain ampicillin resistance plasmid.

The absence of ampilicin, the bacteria will lose their resistance after they might have gone through some cell divisions and any bacteria that doesn't have resistance plasmid will be more vigorous than those that have and will outcompete them

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What is the best way to prevent the growth of bacteria on food preparation surfaces?
Ilya [14]

The best way to prevent the growth of bacteria on food preparation surfaces is sterilization. Details about sterilization can be found below.

<h3>What is sterilization?</h3>

Sterilization is the process of treating something to kill or inactivate microorganisms.

Sterilization can also be done to prevent the reproduction of microbial population.

It is a known fact that microbes are responsible for food spoilage, hence, to prevent this, it is important to kill or get rid of them.

Therefore, the best way to prevent the growth of bacteria on food preparation surfaces is sterilization.

Learn more about sterilization at: brainly.com/question/14290729

#SPJ1

7 0
2 years ago
Scientist developed a vaccine to protect humans from the H1N1 virus which cost 17,000 deaths in 2009. Which of the following per
JulsSmile [24]
B I believe.................
5 0
3 years ago
A gene is a segment of mrna
Viefleur [7K]

Answer:

An RNA single-stranded molecule that is complementary to one of a gene's DNA strands, to be precise.

Explanation:

DNA sequences or segments code for proteins or molecules with defined functions, called genes.

7 0
3 years ago
You are enjoying your vacation on the coast and decided to go snorkeling. Your tidal volume is 460 mL and breathing rate is 14 b
m_a_m_a [10]

Answer:

Option C

Explanation:

Option

A. 6440 mL/min

B. 4340 mL

C. 3500 mL/min

D. 2940 mL/min

Solution

It is required to find the minute ventilation which is equal to the product of rate of breathing and the total amount of gas being inhaled or exhaled per breathe.  Let this minute ventilation be denoted by "V_f"

Thus,

V_f = TD * B_r

where TD is the tidal volume and Br is the rate of breathing

Substituting the given values we get

V_f = 460 *14 \\V_f = 6440

We will now reduce the air held in the conducting zone of respiratory system

Air held per breathe = 210

Total Air held

= 210 * 14 \\= 2940

Amount of fresh air one can breathe in and out every minute

= 6440 - 2940 \\= 3500

Hence, Option C is correct

7 0
3 years ago
7. What is a benefit of selective breeding in agriculture?
8_murik_8 [283]

Answer:

im my opinion... the answer is A

7 0
3 years ago
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