EBK HUMAN BIOLOGY
11th Edition
ISBN: 9780100545939
Author: MCMILLAN
Publisher: YUZU
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 23, Problem 3CT
Summary Introduction
To explain: The outcome of the study of DNA extracted from bits of “Iceman” discovered in Austrian Alps in 1992 and that is estimated to be 5300 years ago.
Introduction: In comparative biochemistry, the DNA, RNA, and proteins are compared between fossil and modern-day organisms in order to establish their ancestry and relatedness.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A new organism has been discovered! Our fictional creature, “the Snipe”, has structural similarities to a deer, pig, and beaver. It has a pig’s head with antlers, and big buck-teeth, a deer’s body, and a wide, flat tail. Please describe how you could determine its place on the evolutionary tree below.
Please draw an evolutionary tree to demonstrate
You are studying the evolution of species. After performing DNA analysis, he discovers a gene that is conserved from yeast to humans.
In which cellular processes is this gene most like to be involved?
Could this gene have evolved to confer some of the complex traits that we observe in modern animals, like multicellularity? Briefly explain.
The theory of evolution is supported by a large body of evidence. What is the first occurrence of found in geologic strata?
Chapter 23 Solutions
EBK HUMAN BIOLOGY
Ch. 23 - Prob. 1RQCh. 23 - As shown in Figure 23.25, there is considerable...Ch. 23 - Prob. 3RQCh. 23 - Prob. 4RQCh. 23 - Prob. 5RQCh. 23 - Prob. 6RQCh. 23 - Prob. 1SQCh. 23 - The relative numbers of different genes (alleles)...Ch. 23 - A difference in survival and reproduction among...Ch. 23 - The fossil record of evolution correlates with...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Scientists often talk about the evidence for evolution. Using the five types of evidence listed here, explain how each suggests the occurrence of evolution: 1) structural homologies, 2) molecular homologies, 3) developmental homologies, 4) fossils (general) and 5) transition fossils.arrow_forwardhow do scientists support the theory of evolution? use the terms evolution, natural selection, vestigial structures, homologous structures, DNA, adaptations and fossilarrow_forwardOrigins of Modern Humans Current data suggest that modern humans evolved from archaic humans primarily in East Africa. A 195,000 year old fossil from the Omo 1 site in Ethiopia shows the beginnings of the skull changes that we associate with modern people, including a rounded skull case and possibly a projecting chin. A 160,000 year old skull from the Herto site in the Middle Awash area of Ethiopia also seems to be at the early stages of this transition. It had the rounded skull case but retained the large brow ridges of archaic humans. Somewhat more advanced transitional forms have been found at Laetoli in Tanzania dating to about 120,000 years ago. By 115,000 years ago, early modern humans had expanded their range to South Africa and into Southwest Asia (Israel) shortly after 100,000 years ago. There is no reliable evidence of modern humans elsewhere in the Old World until 60,000-40,000 years ago, during a short temperate period in the midst of the last ice age.arrow_forward
- While the French biologist LaMarck was correct in proposing that evolution does occur, he believed that the long necks of giraffes evolved as generations of giraffes reached for ever higher leaves on the trees. Using these observations, LaMarck proposed the theory that evolution occurs due to the inheritance of characteristics acquired during an organism’s lifetime. From what you know about the scientific method, why is this incorrect?arrow_forward1) Does the fossil record indicate that life first appeared in the water or on the land? WATER or LAND 2) Does the fossil record indicate that invertebrates (trilobites) and vertebrates (fish) evolved during the same geological period? YES or NO 3) Does the fossil record indicate that birds evolved from mammals or reptiles? MAMMALS or REPTILES 4) The fossil record indicates that hominids evolved from an ancestral hominoid approximately? 4-5 million years ago or 1-2 million years ago What kinds of organisms appear earliest in the fossil record? PROKARYOTES or EUKARYOTESarrow_forwardSome genetic studies suggest that the most recent common ancestor of Homo sapiens that lived outside of Africa spread from Africa about 50,000 years ago. Compare this date to the dates of the fossil record. Can both the genetic results and the dates ascribed to the fossils be correct? Explain and Justify.arrow_forward
- You are a scientist studying the relationships between lizards, penguins, and parrots. You examine the traits of each species and make the following character matrix: Таха Four Feathers Aquatic No body limbs temperature regulation Lizard 1 1 Penguin 1 1 Parrot 1 1 Based on this character matrix answer the following questions: V [ Select ] a) The trait 'no body temperature regulation' derived ancestral b) The most recent common ancestor of the three taxa had Select ] c) Which trait is a good synapomorphy for the penguin/parrot clade? I Select ]arrow_forwardIn 1822, an Arkansas farmer discovered a fossil when a hill collapsed on his property. The farmer sent the bones to the Philadelphia society to be reviewed by scientists where it was determined that the bones were from a whale. Through research, the scientists discovered whales have a vestigial structure that includes a pelvic girdle and hind limbs. Which evidence best supports the theory that organisms, such as whales, have common ancestry and have evolved? Select all that apply. Group of answer choices A/Ostriches and emus are flightless birds. B/Ancient cave paintings depict humans and bulls thousands of years ago. C/More than 96% of human DNA is identical to chimpanzee DNA. D/In the early stages of embryonic development, humans, rabbits, fish, and salamanders look very similar. E/Scientists discovered eight genetic variants in four regions of the human genome that influence skin color ranging from very light to very dark.arrow_forwardNeanderthal fossils were first discovered in the nineteenth century. Study of their morphology suggested that Neanderthals were more closely related to humans than any living species of primate was. Much later, it became possible to sequence DNA from Neanderthal fossils and compare the sequences to those from other primates. Did the results confirm or refute the earlier conclusions based on morphology? Explain.arrow_forward
- How are transitional fossils evidence to support the process of natural selection? They show that most species have not changed over long periods of time. They show plants and animals that once existed but do not exist now. They show intermediate steps in the evolution process. They show that every species of animals developed separately.arrow_forwardIn land mammals, the pelvic girdle is the point where the leg bones attach to the rest of the skeleton. Whales, which are descended from animals that lived on land, also have a small pelvic girdle. This would be an example of what type of evidence for evolution? DNA similarities anatomical similarities shared developmental pathways fossil evidence s 000 Oarrow_forwardSome organisms have features that have different functions, but similar structures. One example is the forelimb of humans, dogs, birds, and whales. What term best describes the relationship between these structures? * Embryological Analogous Homologous no answer Vestigial Which of the following is NOT true about creationism? * no answer There is no extinction of organisms because organisms can always survive as long as they try hard enough. The earth was created only 6000 years ago because the evidence of the rocks support that idea. Any great change is due to small but cumulative changes that occur over long periods of time. All organisms are perfect because they are created to be able to survive in their habitat.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
The Evolution of Populations: Natural Selection, Genetic Drift, and Gene Flow; Author: Professor Dave Explains;https://www.youtube.com/watch?v=SRWXEMlI0_U;License: Standard YouTube License, CC-BY
The Evolution of Humans | Evolution | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=Vf_dDp7drFg;License: Standard YouTube License, CC-BY