BIOLOGY 171 Midterm: Exam 1 Study Guide at UMich
Document Summary
Lecture 1: list the characteristics that all living organisms have; describe how biologists distinguish living organisms from non-living entities. Populations can evolve: give a reason why viruses might be considered living and a reason why they might not. Non-living: they cannot reproduce on their own, cannot take energy from environment: describe what the tree of life , and phylogenetic trees more generally, represent. Shows relationship between all domains of life: eukarya, archaea, and bacteria. Eukarya are more closely related to archaea than bacteria. Can trace back to find mrca: explain where prokaryotes and eukaryotes are found in the three contemporary domains of life: Eukarya: eukaryotes, nucleus: explain the relationship among nucleotides, dna, genes, amino acids, proteins, and the genetic code, describe the central dogma using the following terms: Proteins are complex structures that do the work in cells. Gene expression is the expression of the proteins after transcription: describe the data used to construct the tree of life.
