What does natural selection cause?
2 answers:
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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>
1) Requires tryptophan in the growth medium or from a donor mutant ; This is because the Mutant is an auxotroph for tryptophan.
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.
