Tissue plasminogen activator.
The trading of fragments of genetic material between chromosomes before the egg and sperm cells are created. Key features of recombination include the point-to-point association of paired chromosomes (synapsis), followed by the visible exchange of segments (crossing over) at X-shaped crosspoints (chiasmata). Recombination is the principal way of creating genetic diversity between generations. Recombination ensures […]
- Recommended Daily Allowance
Popular name for the Recommended Dietary Allowance (RDA).
A vaccine against hepatitis B (hep B) to stimulate the body’s immune system to produce antibodies against the hep B virus.
- Recommended Dietary Allowance
The RDA, the estimated amount of a nutrient (or calories) per day considered necessary for the maintenance of good health by the Food and Nutrition Board of the National Research Council/ National Academy of Sciences. The RDA is updated periodically to reflect new knowledge. It is popularly called the Recommended Daily Allowance.
Reappearance, as of a rash or arthritis.