Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
A sigmoid (cooperative) binding curve
2 Several oxygen-binding curves: for normal hemoglobin
A macromolecular machine: the transcription-initiation complex
Structure of a bacterial nucleoid, showing independent domains of supercoiling
A model for factor-independent termination of transcription
The X/A ratio determines gene transcription and transcript splicing pattern