Crossing of a homozygous wild type with a mutant that is heterozygous for a dominant mutation will result in F1 progeny of whichA)all show the mutant phenotype. B)half show the wild-type phenotype and half show the mutant phenotype. C)three-fourths show the wild-type phenotype and one-fourth show the mutant phenotype. D)all show the wild-type phenotype.

Salmonella typhimurium is a food-borne bacterial pathogen that can cause severe gastrointestinal disease. salmonella is often phagocytosed by macrophages that normally destroy bacterial pathogens, but this bacterium is somehow able to prevent the complete maturation of phagolysosomes. salmonella is able to tolerate the low ph of phagolysosomes, and in fact responds to the drop in ph by secreting toxins that interfere with other cellular responses. which of the following differences would you expect to contribute to the survival of a bacterium within an salmonella-containing phagosome, compared to a healthy phagolysosome? decreased activity of acid hydrolases increased activity of acid hydrolases decreased import of h+ ions increased import of h+ ions my guess is decreased activity of acid hydrolases but i'm not sure.

What would be an example of hypothesis for goldfish respiration lab

Mike has a problem with his testosterone. he is unable to produce enough. which will most likely be affected by his inability to produce testosterone? check all that apply.