The twisted ladder metaphorA DNA molecule is often likened to a spiral (or twisted) ladder. In this analogy, the rungs of the ladder are the base pairs (A-T and G-C). The sides of the ladder are the sugar-phosphate backbones of the two strands.This refers to B form DNA. molecule of DNA is double-stranded. The molecule has the shape of a double helix, typically right handed (B form DNA).
FRESH PORK: Safe Cooking Chart. Cook all raw pork steaks, chops, and roasts to a minimum internal temperature of 145 Â°F as measured with a food thermometer before removing meat from the heat source. For safety and quality, allow meat to rest for at least three minutes before carving or consuming.
Safe Cooking Chart for Pork. ROASTING: 1  Set oven at 350 Â°F (180Â° C, Gas Mark 4). 2  Roast in a shallow pan, uncovered. 3  Internal temperature: 160Â° F (70Â°C) â medium; 170Â°F (75Â°C) â well done.f fresh pork has reached 160 Â°F (70Â°C) throughout, it should be safe, even though it may still be pink in the center. The pink color can be due to the cooking method or added ingredients. http://www.fsis.usda.gov/Fact_Sheets/Pork_from_Farm_to_Table/index.asp. ROASTING: 1  Set oven at 350 Â°F (180Â° C, Gas Mark 4).