Imagine that a deaf male has a child with a hearing female. you know that the male must have the genotype dd, but the female could be either dd or dd. if the couple's first child has hearing, can you determine the mother's genotype? (hint: draw punnett squares for the two possible crosses.)

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.

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?