A transcriptional repressor that controls the transcription of gene A is not normally active unless bound by an effector molecul
e X. In a certain cell, the domain of the repressor that binds X is mutated. With all other factors being the same, what effect do you predict on the transcription of gene A? A. The transcription of gene A will not be affected.
B. The effect on the transcription of gene A cannot be predicted.
I think its C . A transcriptional repressor usually represses the transcription pathway when its active. According to the question, the repressor is not usually active until an effector molecule binds to it making it active and blocking the transcription pathway. So if the region where the effector binds on the repressor is mutated i.e. it turns nonfunctional that means the effector cannot bind to repressor which means repressor cannot become active to block transcription which in turn increases the transcription of gene A because repressor cannot repress it since it is inactive due to its inability to bind to the effector.
Animals have basic sounds that mean basically just "danger" or "come here" where human have more specific phrases like "watch out for that falling branch"
The human race may survive through survival of the fittest. basically whoever has the biggest stick wins! The body also could adapt to the lack of water so you could preserve your bodily resources and manage them better. Or you could just change the environment to benefit yourself and mankind!