Some dna sequences must be in cis to interact, while others can carry out their regulatory function in trans. which pair of dna sequences are capable of functioning together in trans? some dna sequences must be in cis to interact, while others can carry out their regulatory function in trans. which pair of dna sequences are capable of functioning together in trans? laci gene and laco operator cap binding site and lac operon promoter shine-dalgarno and aug start codon laco operator and lac operon promoter none of the above

Tall, cone-shaped mountains in which layers of lava alternate with layers of ash are called a. shield volcanoes. b. cinder cone volcanoes. c. composite volcanoes. d. lava plateaus. select the best answer from the choices provided a b c d i need asap

The kidney filters potentially toxic substances in the blood, and thus “clears” the blood of those substances. this clearance function is dependent upon and proportional to the diffusion gradient of the substance across filtering capillaries, i.e. if the concentration of the substance is doubled, twice as much will be cleared from each ml of blood that is filtered. suppose that the body produces a constant amount of a substance x per unit of time. the kidneys eliminate substance x at a rate directly proportional to the concentration of the substance and the volume of blood cleared each minute (c): elimination = c × [x], where [x] is the steady-state concentration of substance x. imagine an individual with an initial concentration of x equal to [x]0 who develops kidney disease. her baseline clearance c0 drops to one half of the original (½c0). what is the new steady state concentration of x? (for simplicity, assume that substance x is 100% filtered by the kidney).

List five ways we are indebted to phytoplankton