Which of the following is a key characteristic of an ideal scientist?

Jerry has a very immature attitude about sex and sucks his thumb even though he is 32 years old. Freud would say these behaviors result from ______

a. heredity c. libido b. fixation d. abreaction

If the allele for brown eyes is dominant and the allele for blue eyes is recessive, which genotype produces a person with blue eyes?

a. A blue-eyed person is homozygous with two alleles for brown eyes. b. A blue-eyed person is homozygous with two alleles for blue eyes. c. A blue-eyed person is heterozygous with one allele for blue eyes and one allele for brown eyes. d. The alleles for eye color are demonstrating codominance.