Ans.
Lac (lactose) operon in a type of bacterial operon, which shows a cluster of genes that are regulated by a single promoter. It is composed of an operator, promoter, a terminator, and three structural genes (lacA, lacY, and lacZ), which are responsible for the transport and breakdown of lactose.
The lac operon is an inducible operon as it gets activated in the presence of lactose and expressed its functional genes in the form of proteins (or enzymes) for lactose metabolism.
Thus, the correct answer to be fill in first blank is 'inducible' and in second blank is 'lactose.'
Answer: Food can be an obvious answer because people will not survive without food so they will die. And death means there will be a decrease on population size. So food can be a limiting factor that is dependent on population size.
Answer:
1.a, 2.b, 3. c, 4. c, 5. c
Explanation:
1.
4H+O2→2H2O
2.
They must have two or more reactants.
3.
The reaction has more than one product.
4.
S + O2→SO2
5.
2Mg+O2→2MgO
Cerebellum is part that helps us keep from falling.
Answer:
Multisaccharide is not a carbohydrate