In what way is the process of fertilization random?
a. in the type of gamete fertilized
b. in the selection of which gametes fuse
c. in the recombination of chromosomes
d. in the number of chromosomes involved
Answer: b. in the selection of which gametes fuse
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Ionizing radiation
a. breaks apart chromosomes. b. alters genes. c. extends the length of the DNA molecules. d. links DNA molecules together. e. both breaks apart chromosomes and alters genes.
Cells that release chemical mediators in both inflammation and allergy are the __________ cells
a. mast b. neutrophils c. eosinophils d. dendritic e. lymphocytes
If a cell contains lysosomes, what type of cell must it be?
a. a fungal cell b. a prokaryotic cell c. an animal cell d. a plant cell
The base of the cranium differs in its development from the viscerocranium and the calvaria in that it...
A. develops by endochondral ossification. B. develops by intramembranous ossification. C. develops from lateral plate mesoderm. D. grows much more slowly than the former two structures. E. is pushed to its final destination after it finishes growing by the growth of the former two structures.