1. Sachs
2. Blackman
3. Smith
4. Kogl
Sachs
1. lac-a is not possible
2. lac-y is not possible
3. lac-z is not possible
4. All of these
All of these
1. mRNA
2. rRNA
3. lac operon
4. trp operon
lac operon
1. Auxins
2. Ethylene
3. Gibberellins
4. Cytokinins
Gibberellins
1. cytoplasm
2. low glucose concentration
3. high lactose concentration
4. high glucose concentration
low glucose concentration
1. tryptophan
2. lactose
3. β-galactoside
4. glucose
tryptophan
1. Ethylene
2. Auxins
3. Gibberellins
4. Cytokinins
Cytokinins
1. at one place in the nucleus
2. at many places in the nucleus
3. at many places in the cell
4. cannot be controlled at all
at many places in the cell
1. Indole acetic acid
2. Colyledauxins
3. Tryptophan
4. Apical acid
Indole acetic acid
1. promoters
2. regulators
3. repressors
4. enhancer
enhancer