---

---

Select your answer:
         

Next Quiz >

Topics:

Cell Vocabulary Branches of Microbiology Nutritional Trivia Skin Structure Nervous & Endocrine Systems Atoms and Radioactivity Skeletal Tissue Aseptic Technique & Sterile Comp Review Genes, Chromosomes and Genome Cell Cycle Problems Alzheimer Disease Blood types and Blood Components Biopsychology - Neuroplasticity and Functional Recovery Medical, Legal, and Ethical Issues Biological Organisms Classification

Other quiz:

Bacteria & Viruses › View

What is the last step in the viral reproduction cycle?
A. A virus attaches to the surface of a host cell
B. The proteins and genetic material start to assemble in the cell
C. The host cell bursts open, releasing the new viruses
D. The virus injects its genetic material into the cell

---

DNA and Genetic Manipulation › View

Which is the structure of DNA?

A. Single helix

B. Double helix

C. Single strand

D. Rounded

---