What term describes the numerous fingerlike projections at the end of the infundibulum that extend toward the ovary?
A. Cilia
B. Fimbriae
C. Oviducts
D. Crura
B. Fimbriae
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Sudden nutrient perturbations in an environment generally ________ the overall prokaryotic diversity
A) increase B) decrease C) maintain D) replicate
Transformation is used in genetic engineering to ____
a. generate bacteria with an F factor for conjugation b. understand how bacteriophages transfer DNA to bacteria c. obtain large quantities of viruses for study d. produce large quantities of the inserted DNA to increase yields of a target product e. introduce new genes into a bacterium’s mitochondrial DNA
The Z lines in skeletal muscle are composed of ____
a. discs to which thin filaments are anchored b. stacked thick filaments along with the parts of thin filaments that overlap both ends c. thin filaments but no thick filaments d. thick filaments but no thin filaments e. stacked thin filaments along with parts of thick filaments that overlap both ends
Refer to Figure 15-1. The use of antibiotic medium at the end of this process:
a. selects against plasmids containing human DNA fragments.
b. selects for plasmids containing particular DNA fragments.
c. selects for bacteria containing plasmids.
d. selects for bacteria lacking plasmids.
e. prevents contamination of the medium