1.You want to construct a phylogeny of the classes found within Phylum Arthropoda, classes which shared ancestry hundreds of millions of years ago. Would you choose to sequence a highly conserved gene or a non-coding region? Why?
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1.You want to construct a phylogeny of the classes found within Phylum Arthropoda, classes which shared ancestry hundreds of millions of years ago. Would you choose to sequence a highly conserved gene or a non-coding region? Why?
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- Hello, I need help answering number 5 questions using the phylogeny below pls & thank you! 5.a) In the 1990s, when only mitochondrial DNA sequencing was available, geneticists claimed that there was no hybridization between humans (Homo sapiens) and Neanderthals (Homo neanderthalensis). Does the phylogeny shown above support the claim humans did not hybridize with Neanderthals in the past? How can you tell? b) Once nuclear DNA sequencing became fast and able to handle sequencing ancient DNA, living humans were found to have some Neanderthal genes. Is this finding clear evidence that some early modern humans did indeed hybridize with Neanderthals? Why? c) Did female H. sapiens hybridize with Neanderthal males to produce fertile offspring that then back-crossed with modern humans? What does the graph say about this? d) Did male H. sapiens hybridize with Neanderthal females that then back-crossed with modern humans? What does the graph say about this? Picture reference:…We talked about what makes an ideal trait for phylogenetic inference. Please match each of the following traits with the appropriate description of what makes it ideal. There are only 10 possible MHC proteins [Choose ] that an individual's cells could express [Choose ] Number of digits on the front foot of Tetrapods can only increase in number You measured the [Choose ] mutation rates among DNA bases [Choose ] transition (mutation) frequencies are estimable Number of teats can polarity of character state is known character states are continuous character states are discrete vary, but an individual female can only have an even number number of states is known < <Species Embryo (A-F) Describe the Anatomical Changes from Early to Late Stages Human Chicken Rabbit Tortoise Salamander В Fish A Guide Questions: 1. Look again at the six embryos in their earliest stages. Describe the patterns you see. What physical similarities exist between each of the embryos? 2. Does this suggest an evolutionary relationship? Explain how these embryos can be used as evidence of a common ancestor between each of these six organisms.
- What's In Let us review what you have learned from the previous module. Answer the activity below. ACTIVITY 1. Match Me! Directions: Match Column A with the correct answers in Column B by writing the number of your answers in the Answer Grid. If all your answers are correct, the sum when answers are added horizontally, vertically, or diagonally will give you a magic number. Column A Column B a. A process in which new species form b. Authored the Theory of Evolution by Natural Selection 1. Thomas Malthus 2. Hybrid sterility 3. Pre-mating isolating mechanism c. It occurs when a hybrid develops, matures but fails to reproduce d. States population limits resources e. Species will different mating seasons f. Sought pieces of evidence for the idea of uniformitarianism that increasing human 4. Jean Baptiste Lamarck due 5. Temporal isolation not mate to 6. Speciation 1What's In Let us review what you have learned from the previous module. Answer the activity below. ACTIVITY 1. Match Me! Directions: Match Column A with the correct answers in Column B by writing the number of your answers in the Answer Grid. If all your answers are correct, the sum when answers are added horizontally, vertically, or diagonally will give you a magic number. Column A Column B a. A process in which new species form b. Authored the Theory of Evolution by Natural Selection 1. Thomas Malthus 2. Hybrid sterility c. It occurs when a hybrid develops, matures but fails to reproduce increasing 3. Pre-mating isolating mechanism d. States that human 4. Jean Baptiste Lamarck population limits resources e. Species will different mating seasons f. Sought pieces of evidence for the idea of uniformitarianism due to 5. Temporal isolation not mate 6. SpeciationLab 10: Kingdom Animalia Introduction Animals all share some characteristics: 1) Multicellular 2) Heterotrophic 3) Their cells have no cell wall 4) At some time in their life they are motile. There are many phyla within the animal Kingdom, and in this activity, you will explore these phyla by building a dichotomous key that will allow you to consider almost any animal and determine which phylum it belongs to. Part 1: Organizing information for the dichotomous key 1) List the 9 animal phyla of macroscopic (visible) animals: Porifera, Cnidaria, Platyhelminthes, Nemotoda, Annelida, Arthropoda, Mollusca, Echinodermata, and Chordata. 2) Use on-line or library resources of your choice, to gather information about these 9 phyla. a. Start by finding two example species per phylum to help tie into your previous knowledge about animal types. Write down these examples. b. Make a list of characteristics that you could use that would help you tell these 9 phyla apart. The final goal is to build a…
- Spirochaetes are free-living, anaerobic bacteria that contain spiral-shaped cells. Nematodes are roundworms that are incredibly diverse and, as a group, have adapted to survive in all environments. Which of the following statements accurately describes the DNA of both groups? * The spirochaete genome is smaller than the nematode genome. Nematode DNA is circular. Spirochaete chromosomes are composed of just DNA while nematode chromosomes also include specialized proteins. O Spirochaete DNA is linear.INSTRUCTIONS: 1. Fill out the blank with their Dichotomous key.2. In each numbered series you should read both choices, determine which choice best applies to the Phylum. Note that some Phyla are already given as guides.3. Proceed where the key tells you to go, often skipping other steps (numbers) in between that do not apply. Dichotomous key for the Major Invertebrate Phyla 1. Radial symmetry or asymmetry…………………………………………….……………………………………….… Proceed to Number 2 Bilateral symmetry………………………………………….……………………………………………………………..… Proceed to Number 4 2. Highly porous surface, not true tissues……………………………………Phylum ________________ Surface is not highly porous, true tissues present………………………………………………………..….. Proceed to Number 3 3. Exhibits pentaramous symmetry and tube feet……………………….Phylum _______________ Lacks pentamerous symmetry and tube feet, possesses tentacles (with nematocysts)…………………………………………………………………………Phylum ________________ 4. Macroscopic colony of sessile, microscopic…aterials Spirochaetes are free-living, anaerobic bacteria that contain spiral-shaped cells. Nematodes are roundworms that are incredibly diverse and, as a group, have adapted to survive in all environments. Which of the following statements accurately describes the DNA of both groups? * pdates ades embers nferences The spirochaete genome is smaller than the nematode genome. Q Online Nematode DNA is circular. sela Spirochaete chromosomes are composed of just DNA while nematode chromosomes also include specialized proteins. on Periods 1 and 2 eriods MP1, Highschool chool MP3, Spirochaete DNA is linear. MP4 Operons are clusters of genes that are regulated as a group. They can be characterized as either repressible or inducible. What is the main difference between the two? * d Thu Fri INTL 1
- Hello, I need help answering 5c & 5d using the phylogeny below(letter (A) graph to the left). Pls and thank you! a) In the 1990s, when only mitochondrial DNA sequencing was available, geneticists claimed that there was no hybridization between humans (Homo sapiens) and Neanderthals (Homo neanderthalensis). Does the phylogeny shown above support the claim humans did not hybridize with Neanderthals in the past? How can you tell? b) Once nuclear DNA sequencing became fast and able to handle sequencing ancient DNA, living humans were found to have some Neanderthal genes. Is this finding clear evidence that some early modern humans did indeed hybridize with Neanderthals? Why? c) Did female H. sapiens hybridize with Neanderthal males to produce fertile offspring that then back-crossed with modern humans? What does the graph say about this? d) Did male H. sapiens hybridize with Neanderthal females that then back-crossed with modern humans? What does the graph say about this?…Horse - Equus caballus Trace its origin and evolutionary history or changes in the species. Describe its structures and their functions. What is the importance of this species to our environment? Give trivia about this species. Does this organism produce oxygen? Explain. What are the ancestral species of your chosen organism? Has this species been genetically engineered? If yes, in what way? How does this species reproduce? What organisms have similar structures to this species? Do these structures have the same function? Does the species have tissues, organs, and/or organ systems? What is its role in the flow of energy? Give at 15 least a sentence to each question.You are exploring the Amazon rainforests before it was completely destroyed. Particularly, you focus on a family of plants that are known to produce chemicals with great medicinal benefit. You sequenced the genomes of several related species and identified the gene, vge (à very good enzymea) responsible for the production of a potential anticancer drug. On the right is the schematic of the genomic region where the vge genes resides. You found that different species have different number of the vge genes. For example, the genome of spécies A (Sp. A) carries three copies of vge genes (vge-A, vge-B, and vge-C). Although they all encode the VGE enzyme and have the same function, their DNA sequences are not entirely identical to each other. Based on this observation, you can conclude that vge-A and vge-B are O orthologous to each other O paralogous to each other O analogous to each other O monophyletic to each other O None of the above Sp. A Sp. B Sp. C Sp. D vge-A vge-B vge-A vge-A vge-B…