What are the roles of allolactose in the lac operon and tryptophan in the trp operon? allolactose acts as an inducer and tryptophan acts as a corepressor. allolactose acts as a corepressor while tryptophan acts as an inducer. allolactose acts as a repressor and while tryptophan acts as a promoter.

Which statement about inheritance is true? o girls get most of their traits from their moms, boys get most of their traits from their dads. o male offspring will always have an x-linked genetic disease if the mom is a carrier o fathers always determine the gender of the offspring in humans. o males never have y chromosomes.

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?

Which of the following does not make up ground substance of connective tissue? hyaluronic acid elastic fibers glycosaminoglycan proteoglycan