Polyphyly - Study guides, Class notes & Summaries

Which word is incorrect in the following statement? Placental mammals (Placentalia) form a monophyletic group. Monotremata is an ancestral lineage that diverged from the basal node in mammals during the Jurassic. Marsupial (Marsupialia) and placental mammals are sister clades. - ️️ancestral Which phylogenetic characters are the most useful in phylogenetic analyses? - ️️synapomorphy Which of the following statements is true? - ️️Most mutations are either neutral or deleterious ...

Fish Definition correct answers An aquatic vertebrate with gills and limbs in the shape of fins. Fishes vs. Fish correct answers Word for more than one species vs. Word for one species Total number of species correct answers 28,000 characterized 32,000 total Percent of freshwater correct answers 41% - what type of environment? Percent in Salt water correct answers 58% - what type of environment? Monophyletic correct answers A taxon that forms a clade on the cladogram. Includes a...

1. Which of the following properties of HIV makes it difficult to trace the source of the virus from one person to the next? a. The transmission of the virus involves very few (often just one) viral particles. b. HIV evolves very slowly within the host. c. The host can have a genetically diverse population of viruses. d. Molecular phylogenies of viruses cannot be constructed. e. None of the above Answer: c Textbook Reference: 22.0 Phylogenetic trees in the courtroom Page: 464 Bloom’s ...

b. HIV-1 - correct answer Which type of virus is causing the HIV/AIDS epidemic in humans? a. SIVcpzANT b. HIV-1 c. SIVstm d. HIV-2 subtype A e. HIV-2 subtype B d. HIV is an RNA virus that parasitizes the immune system cells. - correct answer How does HIV cause AIDS? a. HIV only causes AIDS if the host is infected with multiple HIV-1 types b. HIV is an RNA virus which integrate...

Hox genes (homeobox) and Homeodomain Polypeptide - ANSWERS-A group of genes that regulate development in multicellular organisms; this includes cell differentiation & morphogenesis. -Hox a gene also acts as a switch that turns on and off. Deme (interbreeding group, or evolutionary population) - ANSWERS-Population unit or panmictic unit (mendelian population) -A sub-population (a smaller group within the population that can freely interbreed) Evolution - ANSWERS-Change in a kind of ...

Evolution Exam 1 NDSU 2018S Questions with correct Answers 3 aspects of Darwin's theory of Evolution 1. Change over time 2. Descent with modification 3. Evolution by natural selection What three changes in time have provided evidence of evolution? 1. Marine fossil record showing three clear evolutionary faunas over time 2. Body size in woodrats in response to climate change 3. Direct observation of finches and soapberry bugs Previous Play Next Rewind 10 seconds Move f...

Define biological evolution - ANSWERSany change in the inherited traits of a population that occurs from one generation to the next describe the different types of evidence that support the hypothesis that whales evolved from terrestrial vertebrates - ANSWERSlungs, placenta, live birth, drink milk produced by mothers, three middle ear bones, hair (in developing embryo) synapomorphies what are the closest living terrestrial relatives of whales? how do we know this? - ANSWERSartiodactyls an...

Test File to accompany Life: The Science of Biology, Ninth Edition Sadava • Hillis • Heller • Berenbaum Chapter 22: Reconstructing and Using Phylogenies TEST FILE QUESTIONS (By Norman Johnson) Multiple Choice 1. Which of the following properties of HIV makes it difficult to trace the source of the virus from one person to the next? a. The transmission of the virus involves very few (often just one) viral particles. b. HIV evolves very slowly within the host. c. The host can ha...

BIOL BIOL 1411:Test File Review The Science of Biology, Ninth Edition Chapter 22: Reconstructing and Using Phylogenies TEST FILE QUESTIONS Multiple Choice 1. Which of the following properties of HIV makes it difficult to trace the source of the virus from one person to the next? a. The transmission of the virus involves very few (often just one) viral particles. b. HIV evolves very slowly within the host. c. The host can have a genetically diverse population of viruses. d. Mol...

Zoology Animal Diversity 211 Notes Key Notes to understand before the first exam. Learn about different diagrams in the tree of life and how animals groups are divided. Also learn a little about the important eukaryotes.