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xenn [34]
4 years ago
10

Recall that in the Ames Test, potential mutagens are tested for their ability to revert His− auxotrophs to His+. Any particular

his- mutation present in a His− auxotrophic bacterial strain would be able to be reverted only by some mutagens and not others. Yet, the purpose of the Ames Test is to determine whether or not a specific substance is a mutagen of any type. How is the Ames Test actually performed to circumvent this problem?
Social Studies
1 answer:
nignag [31]4 years ago
3 0

To work around this problem, the Ames test is done as follows:

A petri dish is seeded with salmonella colonies, moreover, in that petri dish a little chemical is added in the center. A culture medium is also added to the plate where agar is one of the ingredients and biotin and histidine have been mixed.

Only bacteria that show some kind of mutation will grow on these agar plates. This is because histidine has the function of allowing cell divisions necessary only for cases in which mutagenesis is necessary to occur.

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6 0
3 years ago
When you have had to work with others to make a group decision,you have usually?
Akimi4 [234]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Below are the choices:

Proposed a 'middle ground' option to break deadlocks.
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Used your influence to make sure your own ideas were accepted.
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<span>Changed your own position to accommodate the interests of others.

The answer: </span><span>Tried to find one solution which satisfies everyone's expectations.</span>
6 0
3 years ago
5. A biome *
Ksju [112]

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d. All of the above

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8 0
3 years ago
Which of the following is true of socioemotional selectivity theory? Multiple Choice
rjkz [21]

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3 0
3 years ago
You are driving on a road with reversible lanes that are marked with overhead lane signals; choose an answer:
Svetach [21]
<span>The answer is a. you may drive in a lane under a green arrow.

Overhead lane signals have 2 options. 1) green arrow and 2) red cross. 

Green arrow means driver may use the lane under the signal.
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In the event that the green arrow changes to red cross, you can change lanes and use the one under the new green arrow.</span>
7 0
4 years ago
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