In the Sierra Nevada mountains of California there are many populations of the checkerspot butterfly, Euphydryas editha. You not
ice that females of one population (population A) lay their eggs near the tip of a plant’s stem. Females of another population in the same area (population B) lay their eggs at the base of the stem on a different type of plant. The young hatch out as caterpillars; they live on the host plant and eat its leaves. Is the information above a complete description of the butterflies’ niche?
According to this principal, if a recessive gene for tallness is paired with another recessive gene for tallness, the organism is categorized as a homozygous recessive in terms of its genotype.
