In mountain rabbits, the el-1 gene is located on chromosome 3. four alleles of this gene have been identified in the population. with respect to el-1, what is the maximum number of genotypes in the progeny of a single cross between two mountain rabbits

Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food