In crook-necked squash, neck length is controlled by one gene where long neck is dominant over short neck. However, an intermediate phenotype, thick neck is a result of the heterozygous genotype. A. A long-necked and a short-necked plant are mated with each other. What is the resulting phenotype in the offspring?
B. If the offspring are mated with each other, what phenotypes (and in what ratios) will result?

Although there are a limited number of amino acids many different types of proteins exist because..

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.

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.