Predict the phenotype of an operator mutant (o c) which would prevent the binding of the repressor.
a. the lac genes would be expressed efficiently only in the absence of lactose. b. the lac genes would be expressed efficiently only in the presence of lactose. c. the lac genes would be expressed continuously. d. the lac genes would never be expressed efficiently.

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle