How do restriction enzymes work?
1.They recognize sticky ends and quickly restrict their binding.
2.They recognize and cut only specific sequences going backwards and forwards in the DNA.
3.They help to paste DNA from different organisms into cloning vectors.
4.They restrict plasmids from being taken up by host cells.
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The spaces between adjacent Schwann cells are called ____
a. nodes of Ranvier b. axon terminals c. dendrites d. intercalated discs e. active gaps
What is the right description for the submucosa?
A) made of smooth muscle B) contains secretory glands that release enzymes C) part of the peritoneum D) made of connective tissue
Which type of vesicle/vacuole is incorrectly matched with its description?
A) Secretory vesicle: Replenishes the lipid bilayer and deliver proteins for incorporation into the membrane B) Vacuole: Contains water and substances such as nutrients, toxins, or waste products C) Peroxisome: Protects the cell from hydrogen peroxide and other toxic oxygen intermediates D) Transport vesicle: Moves substances to diverse cellular destinations within the cell E) Lysosome: Contains hydrolytic enzymes that break down substances engulfed by the cell
The rules of naming organisms are called
A. taxonomy. B. nomenclature. C. classification. D. binomials. E. identification.