★ Microbiology Quiz
According to Watson and Crick’s model, what forms the “rungs” of the DNA helix ladder?
A. Sugar-phosphate backbones
B. Purines and pyrimidines
C. Major and minor grooves
D. Antiparallel strands
Select your answer:
Topics:
Nervous & Endocrine Systems Cardiovascular System Terminology Selective Breeding Homeostasis - Vision Correction Defence against Infectious Diseases Organisms Cartilage Vocabulary Tongue and Skin EMR - Trauma Pathogens, Disease and Immunity Inflammation and Healing Musculoskeletal Anatomy: Knee Healthcare Careers Cell Cycle; CancerOther quiz:
Pathogens, Disease and Immunity › ViewWhat are molecules on cells that the immune system recognize either as part of the body or as coming from outside the body?
A. antibodies.
B. antigens.
C. T cells.
D. B cells.
Mitosis for Mya › View
In interphase…
A. The cytoplasmic organelles double in size
B. The cytoplasmic organelles double in number
C. The cytoplasmic organelles divide in quarters
D. The cytoplasmic organelles are replicated by ribosomes