Answer:
Increase in transcription
Explanation:
Transcription is the process of forming RNA from DNA. It can be controlled by many factors like a repressor. Repressor can bind to the operator region of the promoter and hinder the movement of RNA Polymerase enzyme, halting the process.
Here, it is given that the repressor needs to first bind to an effector molecule X. Once it binds to X, it is activated and then it can bind to operator of gene A to inhibit its transcription. If the X binding domain on repressor is mutated it wont be able to bind to X. Thus it wont get activated and wont be able to attach to operator region to inhibit transcription. Hence, transcription process will keep going on uncontrolled.
Answer:A and D
Explanation: Because that’s what US Test Prep said was right.
Because that way he could study the inheritance of traits,the allele for all plants is dominant
hope it helps
Answer:It is to ensure that a good percentage of offspring survive
Explanation: As with most organisms, there is a good chance that not all offspring will survive, due to factors such as limited resources, predation, etc. Thus certain measures have to be put into place by the parents to ensure a good chance at survival for their offspring. In this case, the eggs that are widely spread out are seen as sacrificial ones, because the parents will not be able to fully care for them and provide resources for them and the ones which were laid in the nest. They will also act as offerings for any predator on thee hunt. All of this will greatly increase the chance of survival for the eggs which were laid in the nest and will receive parental care .
