For each of the partial diploids, determine whether expression of the lac operon will be inducible (wild type) or low expression in the absence of glucose (mutant). Then use this information to identify the mutations in mutant strain 3 and mutation strain 4. Select the two correct answers.

a. F' cap+ / crp+ cap- shows low expression in the lactose only condition. Mutation 4 is a CAP-cAMP binding site mutation.
b. F' cap+ / crp+ cap- shows high expression in the lactose only condition. Mutation 3 is a CAP-cAMP binding site mutation.
c. F' cap+ / crp- cap+ shows high expression in the lactose only condition. Mutation 3 is a mutation in the crp gene that produces CAP.
d. F' cap+ / crp- cap+ shows low expression in the lactose only condition. Mutation 4 is a mutation in the crp gene that produces CAP.

the correct option is option a

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

bc blah

explanation:

bc blah