Which of the following cell junctions are associated with the proper alignment of intestinal epithelial cells?
A) gap junctions
B) adhesive junctions
C) tight junctions
D) desmosomes
E) all of the above
E) all of the above
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Achondroplasia is a common form of dwarfism caused by an autosomal dominant mutation in the fibroblast growth factor receptor 3 (FGFR3) gene. Two copies of the mutant gene are invariably fatal before or shortly after birth. If a person with achondroplasia marries a person of normal height, what is the probability that both their first child and second child will have achondroplasia?
A. 1/8 B. 1/4 C. 1/2 D. 1 Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain? Gather Content · What do you already know about phenotype ratios from crosses? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The cecum is the largest in
A. protozoans. B. omnivores. C. carnivores. D. herbivores. E. detritivores.
Like other animals, penguins of the north can keep
warm because of layers and patches of __________ in their bodies. a. adipose tissue b. proteins c. carbohydrates d. sterols e. phospholipids
Eukaryotic ribosomes function as
a. a single unit. b. two-part units. c. three-part units. d. four-part units. e. a multidivisional unit.