The pedigree below shows the transmission of albinism (absence of skin pigment) in a human family. 123 123456789 a. What is the most likely mode of transmission of albi- nism in this family? b. Using allelic symbols of your choice, identify the geno- types of the male and his two mates in generation I. c. The female I-1 and her mate, male I-2, had four children, one of whom has albinism. What is the probability that they could have had a total of four children with any other outcome except one child with albinism and three with normal pigmentation? d. What is the probability that female I-3 is a heterozygous carrier of the allele for albinism? e. One child of female I-3 has albinism. What is the prob- ability that any of the other four children are carriers of the allele for albinism?

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.

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

What maintain homeostasis when a persons internal body temperature is 97.5°f