An essential amino acid, D, is made from precursors A, B, and C by the following pathway:
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An essential amino acid, D, is made from precursors A, B, and C by the following pathway:. A. B. C. D. Several mutant bacteria are isolated that are unable to grow on minimal media. Each is tested on minimal media, as well as on minimal media plus chemicals A, B, C and D.

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An essential amino acid, D, is made from precursors A, B, and C by the following pathway:

A

B

C

D

Several mutant bacteria are isolated that are unable to grow on minimal media. Each is tested on minimal media, as well as on minimal media plus chemicals A, B, C and D.

Q1: Mutant 1 has lost the function of the gene encoding the enzyme required for the reaction of:

A to B

B to C

C to D

None of the above


An essential amino acid, D, is made from precursors A, B, and C by the following pathway:

A

B

C

D

Several mutant bacteria are isolated that are unable to grow on minimal media. Each is tested on minimal media, as well as on minimal media plus chemicals A, B, C and D.

Q2: Mutant 2 has lost the function of the gene encoding the enzyme required for the reaction of:

A to B

B to C

C to D

None of the above


An essential amino acid, D, is made from precursors A, B, and C by the following pathway:

A

B

C

D

Several mutant bacteria are isolated that are unable to grow on minimal media. Each is tested on minimal media, as well as on minimal media plus chemicals A, B, C and D.

Q3: Mutant 3 has lost the function of the gene encoding the enzyme required for the reaction of:

A to B

B to C

C to D

None of the above


An essential amino acid, D, is made from precursors A, B, and C by the following pathway:

A

B

C

D

Several mutant bacteria are isolated that are unable to grow on minimal media. Each is tested on minimal media, as well as on minimal media plus chemicals A, B, C and D.

Q4: Mutant 4 has lost the function of the gene encoding the enzyme required for the reaction of:

A to B

B to C

C to D

None of the above


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