In corn, seeds can be either yellow (D) or purple (d). Seed texture can either be smooth (T) or wrinkled (t). Suppose two plants that are heterozygous for both traits are crossed. Give all possible phenotypes and genotypes of the
offspring and their ratios. (4 marks)

What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.

Do you think the gene eef1 alpha1 supports cell theory? explain your response.

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of