________ are cancers that originate in epithelial cells and comprise 90% of all cancers
Fill in the blank with correct word.
Answer: Carcinomas
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A mouse genomic library is constructed so that the number of clones equals one genomic equivalent. Is it likely that this library contains the entire mouse genome?
The mouse genome consists of 2,700 Mb. A genomic library is constructed using BAC vectors and overlapping fragments of the mouse genome. The average size of the mouse DNA inserts is 200 kb. A) No; by chance some parts of the genome will be represented more than once and others not at all. B) Yes; that is a sufficient number clones for every part of the genome to be represented one time. C) No; the restriction enzyme used to fragment the genome will delete some DNA on the ends of clones.
Four of the five features listed below are similar
evolutionary characteristics in Homo. Select the exception. a. small, thin face b. high skull c. large cranial capacity d. larger body size e. specialized teeth
Histamine
a. causes blood vessels to contract. b. causes capillaries to lose their permeability. c. causes an outward flow of fluids from the capillaries. d. reduces tissue swelling. e. enhances the function of cytokines.
Calcium ions are involved in muscle contraction by
A. manufacturing ATP. B. causing the muscle cell to depolarize. C. binding to the troponin-tropomyosin complex and exposing actin. D. repairing the damage done during contraction.