Concept explainers
To identify:
The lineages as plants, non vascular plants, vascular plants, seedless vascular plants and seed plants with reference to Figure 26.18 “Highlights of plant evolution” and also explain which of these categories are monophyletic and which are paraphyletic with reference to Figure 20.10 “Monophyletic, paraphyletic and polyphyletic groups’, in the textbook.
Introduction:
The evolution history of the organism is known as phylogeny and the branched diagram for evolutionary relationships among species based on their genetic and physical characteristics is known as phylogenetic tree which is also known as evolutionary tree.
Monophyletic groups are those which consist of ancestor and all of its descendents, paraphyletic group includes ancestor and few but not all descendents and polyphyletic group includes species that are distantly linked and does not include recent common ancestor.

Want to see the full answer?
Check out a sample textbook solution
Chapter 26 Solutions
CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
- Molecular Biology Question You are working to characterize a novel protein in mice. Analysis shows that high levels of the primary transcript that codes for this protein are found in tissue from the brain, muscle, liver, and pancreas. However, an antibody that recognizes the C-terminal portion of the protein indicates that the protein is present in brain, muscle, and liver, but not in the pancreas. What is the most likely explanation for this result?arrow_forwardMolecular Biology Explain/discuss how “slow stop” and “quick/fast stop” mutants wereused to identify different protein involved in DNA replication in E. coli.arrow_forwardMolecular Biology Question A gene that codes for a protein was removed from a eukaryotic cell and inserted into a prokaryotic cell. Although the gene was successfully transcribed and translated, it produced a different protein than it produced in the eukaryotic cell. What is the most likely explanation?arrow_forward
- Molecular Biology LIST three characteristics of origins of replicationarrow_forwardMolecular Biology Question Please help. Thank you For E coli DNA polymerase III, give the structure and function of the b-clamp sub-complex. Describe how the structure of this sub-complex is important for it’s function.arrow_forwardMolecular Biology LIST three characteristics of DNA Polymerasesarrow_forward
- Molecular Biology RNA polymerase core enzyme structure contains what subunits? To form holo enzyme, sigma factor is added to core. What is the name of the structure formed? Give the detailed structure of sigma factor and the function of eachdomain. Please help. Thank youarrow_forwardMolecular Biology You have a single bacterial cell whose DNA is labelled with radioactiveC14. After 5 rounds of cell division, how may cells will contain radioactive DNA? Please help. Thank youarrow_forward1. Explain the structure and properties of atoms and chemical bonds (especially how they relate to DNA and proteins). Also add some pictures.arrow_forward
- 1. In the Sentinel Cell DNA integrity is preserved through nanoscopic helicase-coordinated repair, while lipids in the membrane are fortified to resist environmental mutagens. also provide pictures for this question.arrow_forwardExplain the structure and properties of atoms and chemical bonds (especially how they relate to DNA and proteins). Also add some pictures.arrow_forwardIn the Sentinel Cell DNA integrity is preserved through nanoscopic helicase-coordinated repair, while lipids in the membrane are fortified to resist environmental mutagens. also provide pictures for this question.arrow_forward
- Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
- Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage LearningBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781337408332Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage LearningBiology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning





