US Secretary of State John Hay established the policy, which opened China’s ports to European trade.

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked

What percentage of organisms is played the dominant trait (tall) in the f2 generation? a.25% b.100% c.75%

Which of the items below would describe the genotype of an individual? a.blue eyes b.bb c.brown fur