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.
The same warning appears on the website for ReliOn, Wal-Martâs private label, less-expensive insulin offering. Wal-Mart recently switched its ReliOn NPH insulin from Humulin N to Novolin N. Despite the warning on the company website, at least some Wal-Mart pharmacy employees treat Humulin N and Novolin N as interchangeable. A VIN News Service reporter who asked for Humulin N at a Wal-Mart in Washington state was given ReliOn Novolin N by an employee who slipped the product into a bag and stapled it shut, saying nothing about the substitution. NPH insulin is sold over-the-counter (OTC) for human use.