NIU Bios 209 Final Exam-King Questions with Verified Solutions

NIU Bios 209 Final Exam-King Questions with Verified Solutions **Biology and Ecology** What term describes the characteristics of a system that arise from the interactions among its components, but cannot be predicted by studying the components in isolation? Emergent properties. What is a continuous piece of DNA within a cell called, which can exist as a line or loop/circle? A. Mitochondrial DNA B. Chromosome C. Nucleotide D. Gene E. DNA helix B. Chromosome Define evolution in terms of genotypes, referring to changes over time. A. The modification of an individual's genotype through natural selection B. The change in the proportion of different genotypes over time C. The adaptation of a species to its environment D. The process of genetic drift E. The variation in gene expression B. The change in the proportion of different genotypes over time What type of allele has its phenotypic effect only visible when an individual has two identical copies of the allele? A. Dominant allele B. Recessive allele C. Heterozygous allele D. Homozygous allele E. Mutant allele B. Recessive allele What does it mean to be double-double at each locus, considering DNA structure and inheritance? A. You have only one piece of DNA at each locus. B. You have two pieces of DNA for each locus. C. You have an allele from your mother and another from your father, each chromosome is a piece of DNA, and DNA exists as a double helix with nucleotide base pairs. D. You have no DNA at each locus. E. You have an allele from your mother only. C. You have an allele from your mother and another from your father, each chromosome is a piece of DNA, and DNA exists as a double helix with nucleotide base pairs. How do you describe a diagram that illustrates the relatedness among multiple species over thousands of years? A. Phylogeny B. Genotype diagram C. Phenotype diagram D. Hierarchy diagram E. Network diagram A. Phylogeny What factor contributes to behavioral differences between identical twins? A. Genetic differences B. Environmental factors