Individuals can inherit a defective APC gene on chromosome 5 from one parent that makes them susceptible to developing familial adenomatous polyposis. In which cells is this deletion present in affected individuals?
A) somatic cells
B) germ cell precursors
C) colon polyp cells
D) colon epithelial cells
E) all cells
Answer: E
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(a) is the amount that an object’s image is enlarged. (b) is the extent to which detail in an image is preserved during the magnifying process. (c) is the degree to which image details stand out against their background. (d) focuses light rays emanating from an object to produce an image.
he route that most accurately describes secretory protein movement through the endomembrane system would be
A. Golgi apparatus?smooth endoplasmic reticulum ?lysosome?vesicles?plasma membrane B. plasmid?plasma membrane?nuclear envelope?smooth endoplasmic reticulum?vesicles C. nuclear envelope?vesicles?Golgi apparatus?rough endoplasmic reticulum?plasma membrane D. lysosomes?rough endoplasmic reticulum?smooth endoplasmic reticulum?vesicles?plasma membrane E. rough endoplasmic reticulum?vesicles? Golgi apparatus?vesicles ?plasma membrane
The citric acid cycle occurs in the __________ of cells and is an __________ process.
a. cytosol? aerobic b. mitochondria? aerobic c. mitochondria? anaerobic d. cytosol? anaerobic
Most of hominin evolution occurred in Africa, but there is fossil evidence that members of the genus Homo first migrated out of Africa at least ________ years ago
A) 5 million B) 1.8 million C) 10 million D) 3 million