Heat oven to 350°F (325°F for dark or nonstick pans). Grease and lightly flour bottoms and sides of two 9-inch round cake pans, or spray with baking spray with flour. In large bowl, mix cake mix and gelatin. Beat in water, oil and whole eggs with electric mixer on low speed 30 seconds, then on medium speed 2 minutes, scraping bowl occasionally. Pour into pans.