Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 19, Problem 25QP
Genomics and Human Evolution
The Denisovan genome contains sequences that originated from an unknown human species. Using Figure 19.11, speculate on which species this might be. Is it possible that there are other ancestral species that may remain to be discovered that would change the phylogeny presented in the figure?
FIGURE 19.11 Estimates for the dates of origin and extinction for the three main groups of hominins (green, blue, and orange). The australopithecines split into two groups about 2.7 million years ago. One of those groups, the genus Homo, contains the ancestors to our species, H. sapiens.
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Phylogeny of Human Evolution - create a phylogeny of human evolution. It should include all known hominids beginning with the earliest and ending with modern Homo sapiens and your version of a future human)
When I first studied hominin evolution, they had found "Lucy", an Australopithecus afarensis, and everyone thought her species was an early ancestor of Homo sapien. The picture is much more complicated, with lots of hominins living in close proximity for millions of years...much different than our now singular species.
Look at the phylogenetic tree and use it as a guide to briefly describe hominin lines in Africa up to Homo. Do not discuss Homo.Just discuss a sense that you generally can grasp what was going on in Africa with our Genus for 6 or 7 million years!
create a phylogeny of human evolution. It should include all known hominids beginning with the earliest and ending with modern Homo sapiens. In your version of a future, humans will create a phylogeny of human evolution. It should include all known hominids beginning with the earliest and ending with modern Homo sapiens and your version of a future human.
The requirement is to put the genus and species name of the hominid, beginning with the earliest one, which is Sehelanthropus tchadensis, in the phylogeny along with its dating age.
Chapter 19 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 19.8 - Why dont genetic markers on the Y chromosome...Ch. 19.8 - Prob. 2GRCh. 19 - If you suspected that heterozygous carriers of a...Ch. 19 - If allele frequencies in the hemoglobin gene are...Ch. 19 - Prob. 1QPCh. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - Prob. 4QPCh. 19 - Prob. 5QPCh. 19 - How Can We Measure Allele Frequencies in...
Ch. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - Using the HardyWeinberg Law in Human Genetics...Ch. 19 - Prob. 10QPCh. 19 - Using the HardyWeinberg Law in Human Genetics In a...Ch. 19 - Prob. 12QPCh. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Prob. 15QPCh. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Prob. 17QPCh. 19 - Prob. 18QPCh. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Natural Selection Affects the Frequency of Genetic...Ch. 19 - Prob. 21QPCh. 19 - Prob. 22QPCh. 19 - The Evolutionary History and Spread of Our Species...Ch. 19 - Prob. 24QPCh. 19 - Genomics and Human Evolution The Denisovan genome...
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- Dont USE AI. Please answer from your knowlage. Why do you think it was possible for several different hominin species to coexist at around 2.5 million years ago when we are the only living hominin species today? Do you think it is possible that one of the later robust Australopithecines could be the ancestor to our genus, Homo? Why or why not? 300 wordsarrow_forwardThe images below exhibit Y-5 molars. The left comes from a chimpanzee and the other is a zoomed-in image of Y-5 molars in a human. Why do these primates share the trait for Y-5 molars? Mark the best answer. Group of answer choices Unclear, cannot determine from the information given. Both inherited this trait from their common ancestor, which also had Y-5 molars. Convergent evolution, since both separately evolved Y-5 molars to adapt to dietary pressures. Random mutations, since having Y-5 molars is abnormal in these species of primate.arrow_forwardNeanderthals DNA and behaviors show uS the ways in which they adapted to their environment over Europe, the Near East and Western Asia. Decoding Neanderthals discusses why Neanderthals went extinct. Which do you think best explains their extinction, and why?arrow_forward
- There is no concrete evidence of which early hominin was our direct ancestor, as fossils do not contain genetics. Overall, the Australopithecines are the "missing link" bridging our ape to human transition. Each species, and there are a few, includes a combination of traits considered more ape-like or more human-like. How does this affect society feelings/views/ideas about early human evolution and what the "missing link" should or should not be.arrow_forwardHomo floresiensis describe the fossil/ DNA etc. and where it comes from. Describe what makes this species different from previously discovered species. Describe one way it changes our understanding of human evolution.arrow_forward88. Carbon-14 dating can be used to give an age for which of the following? early hominids (~2 million years before present) the age of the earth (~4.5 billion years before present) early Homo sapiens wooden house structures in Europe (~35,000 years before present) dinosaur remains (~75 million years before present) It can only be used to date materials that are at most 5,000 years old.arrow_forward
- A skull of Homo Neanderthalensisis tested using carbon14. Palaeontologists are wondering about whether the Neanderthal was living at the same time as Homo sapiens, known to be living in the same area 45 000 years ago. Measurements shown the original amount of carbon-14 isotope present in the skull when Neanderthal died is only 1.56%. A) How old is the Neanderthal fossil? B) Could this Neanderthal have been living with Homo sapiens in this area at the same time?arrow_forwardThe Evolutionary History and Spread of Our Species (Homo sapiens) a. Briefly describe the two major theories discussed in this chapter about the origin of modern humans. b. Which of these two theories would predict a closer relationship for the various modern human populations? c. Which of the two theories is best supported by the genetic evidence?arrow_forwardThe phylogenetic tree for 12 cat species (Felidae) reproduced at right was assembled from molecular sequence data. Which species is the domestic cats closest relative? Which clade is the sister taxon to tigers? Are bobcats more closely related to cougars or to ocelots? Source: From Warren E. Johnson et al. 2006. The late Miocene radiation of modern Felidae: A genetic assessment. Science 311:7377.arrow_forward
- The phylogenetic tree for vertebrates depicted below was constructed from sequence data for two rRNA mitochondrial genes (12S and 16S). How do the results of this analysis compare with the phylogenetic trees in Figures 32.10 and 32.24? Identify the major clades of vertebrates on the tree depicted below. Source: R. Zardoya and A. Meyer. 1998. Complete mitochondrial genome suggests diapsid affinities of turtles. Proceedings of the National Academy of Sciences, USA 95:1422614231. Copyright 1998 National Academy of Sciences, U.S.A.arrow_forwardNearly 4 million years ago, two or three hominins left their footprints across the savanna of modern day Tanzania, clear evidence that… Group of answer choices A-hominins were quadrupedal 4 million years ago, prior to the adaptation of walking on two feet B-the Hominins that left the footprint impressions habitually walked bipedally C-members of the evolutionary lineage that include our own species are capable of running at speeds of nearly 35 miles per hour D-Australopithecus afarensis males weighed between 150 – 190 pounds E-volcanic activity along the Kilombero fault line caused a mass extinction event around 4 million years agoarrow_forwardOnce 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?arrow_forward
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