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AnnZ [28]
3 years ago
8

Is it true that all things in earth have two or more cells?

Biology
2 answers:
ICE Princess25 [194]3 years ago
4 0
That is false..their are unicellular organisms
aalyn [17]3 years ago
3 0
No, there are unicellular organisms or single-celled organisms which have one cell...

Please mark as brainliest...
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Consider the scenario in which Mutants A and B are grown in a medium that contains His, but does not contain Trp. For this scena
solmaris [256]

Answer: Attached below is the missing part of your question

answer

Mutant A

<em>1) Requires tryptophan in the growth medium or from a donor mutant </em>

<em>2) Must form nanotubes to obtain it's required amino acid in this scenario:</em>

Mutant B

<em>1) Requires histidine in the growth medium or from a donor mutant </em>

<em>2) Does not need to form nanotubes to obtain it's required amino acid in this scenario:</em>

Explanation:

<u>Mutant A ( Over produces His and cannot produce Trp ) </u>

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2) Must form nanotubes to obtain it's required amino acid in this scenario:

This is because growth medium of the mutant is supplemented with  histidine

<u>Mutant B ( cannot produce His and overproduces Trp </u>)

1) Requires histidine in the growth medium or from a donor mutant :

This is because Mutant B lacks the biosynthetic pathways necessary for histidine production

2) Does not need to form nanotubes to obtain it's required amino acid in this scenario: because the Mutant cell can easily take up the required amount of Histidine from its surroundings.

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