Illustrate in the form of a Punnett square the results of crossing a pink-flowering four o'clock with a white-flowering four o'clock. Students should place symbols representing one parent's alleles (Rr) on the left side of a four-box square and those representing the other parent's alleles (rr) across the top. Students should fill in each box with the appropriate two symbols. The boxes reveal all possible genotypes. (Rr, Rr, rr, rr)
Figure 1: Structural formula of Novolin R. Novolin R is a sterile, clear, aqueous, and colorless solution that contains human insulin (rDNA origin) 100 units/mL, glycerol 16 mg/mL, metacresol 3 mg/mL, zinc chloride approximately 7 mcg/mL and water for injection. The pH is adjusted to 7.4. Hydrochloric acid 2N or sodium hydroxide 2N may be added to adjust pH.
Insulin syringes may vary in the amount of space between the bottom line and the needle (dead space), so if you are mixing two types of insulin be sure to discuss any change in the model and brand of syringe you are using with your health care provider. Novolin R can be mixed with NPH insulin right before use. When you are mixing Novolin R insulin with NPH insulin, always draw the Novolin R (clear) insulin into the syringe first. Add together the doses (total number of units) of NPH and Novolin R that you need to inject.