Answer:
D.) repressor DNA-binding site mutation
Explanation:
lacl prevents the repressor polypeptide is a mutant that prevent operon from binding lactose, and thus will bind to the operator and be non-inducible.. This mutant will represses the lac operon whether lactose is present or not and the lac operon will not be expressed. It is also called“super-supperesor".
The lacI locus – One type of mutant allele of lacI (callled I-) prevents the production of a repressor polypeptide or produces a polypeptide that will not allow to bind to the operator sequence.
This is also a constitutive expresser of the lac operon because absence of repressor binding permits transcription.
Explanation:
carbon dioxide released during decay.
Answer:
When jobs are outsourced to different countries,the resultant effect is that the morale in the workplace would drop drastically which would end up bringing bad publicity to the company. Outsourcing has been known to cause high unemployment rate, loss of income and loss of competitive advantage thereby leaving people without financial support and employment.
90% of the energy is lost to the environment as heat and only 10% is transferred per trophic level
The scientists can predict that the finches on the island are mostly insectivores.
This is a generalization because the scientist have taken 12 finches as a sample population and predicted the food habits of the Entire population of finches living on the island.
Explanation:
- Generalization refers to deriving a conclusion about anything by observing any sample of it.
- Usually generalizations are done while studying large populations.
- We can define generalization as an act in which broad inferences are drawn by small observation.
- It makes the qualitative evaluation easy when it is very difficult to study each an every individual of population.
- In this experiment the scientists have observed only 12 out of many finches living on the island.
- They observed only these 12 finches and inferred about the eating habits of all the finches in the island.
- So, here a small observation of only 12 finches was used to give a broader inference about all the finches. Thus, it is a generalization.
