Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 32.5, Problem 2R
Summary Introduction
To review:
The role of neoteny in the development of humans with small jaws and large brain size.
Introduction:
The retention of juvenile characters in adults is known as neoteny. It slows down or delays the physiological development of certain parts of the body in growing animals and has an important role in the development of humans with a small jaw and a relatively large brain size.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Ectodermal Derivatives of the 10 mm Pig Embryo
QUESTIONS:
State the neuromere origin of each brain region?
Explain how an understanding of cell lineages in Caenorhabditis elegans aids in the identification of mutations that affect the timing of developmental changes.
Explain:
Is the degenerating blastocoel visible in the frog gastrula?
How much yolk protrudes through the blastopore of a frog gastrula
How much yolk protrudes through the blastopore of a frog gastrula?
Chickens lack a larval stage. How do they compensate for this?
Chapter 32 Solutions
Life: The Science of Biology
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
- We think about what developmental questions are raised by the recent COVID19 outbreak. How has it affected the interactions and experiences necessary for infant brain development? What have you seen in your family or other infants?arrow_forwardDefine phenotypic adaptation.give one example.arrow_forwardDefine phenotypic adaptation. Give one example.arrow_forward
- What is the treatment for abnormality in early societies?arrow_forwardExplain why tortoiseshell cats are almost always female and why they have a patchy distribution of orange and black fur.arrow_forwardIn identifying the marginal cells of the tunicate embryo, which of the following is the role of the Macho- 1 gene? Choose all possible answers. a) suppresses notochord induction in mesenchymal cell progenitors b) a determinant that not only activates muscles but also distinguishes cell responses to the FGF signal c) can alter the responses to endodermal FGFs d) none of the abovearrow_forward
- The term "homoplasy" is most applicable to which of these features? A) The legless condiion found in various types of lizards B) The 5-digit condition of human hands and bat wings C) The beta-hemoglobin genes of mice and of humans D) The fur that covers Australian moles and North American moles E) The basic skeletal features of dog forelims and cat forelimbs. Based on these choices, I am torn between A) and D). Both represent situations of possible convergent evolution, but I feel like fur isn't too significant of a derived character compared to legless conditions. B) could also be the answer too, but the 5-digit condition seems like common ancestry/morphological similarities.arrow_forwardWhat most likely caused the variations in these finches?arrow_forwardWhat is hypopharynx in cockroach?arrow_forward
- What is the relation of genetics to Alzheimer’s disease? a. Identified genes have a strong effect on early-onset Alzheimer’s disease and a weaker effect on lateonset disease. b. Identified genes have a weak effect on early-onset Alzheimer’s disease and a stronger effect on lateonset disease. c. Identified genes have a strong effect on both the early and late onset forms of Alzheimer’s disease. d. Identified genes have little or no effect on Alzheimer’s disease, regardless of time of onset.arrow_forwardHow does von baer's law of development relates with the development of the frog embryo? evidences?arrow_forwardA form of dwarfism known as Ellis–van Creveld syndrome was first discovered in the late 1930s, when Richard Ellis and Simon van Creveld shared a train compartment on the way to a pediatrics meeting. In the course of conversation, they discovered that they each had a patient with this syndrome. They published a description of the syndrome in 1940. Affected individuals have a short-limbed form of dwarfism and often have defects of the lips and teeth, and polydactyly (extra fingers). The largest pedigree for the condition was reported in an Old Order Amish population in eastern Pennsylvania by Victor McKusick and his colleagues (1964). In that community, about 5 per 1000 births are affected, and in the population of 8000, the observed frequency is 2 per 1000. All affected individuals have unaffected parents, and all affected cases can trace their ancestry to Samuel King and his wife, who arrived in the area in 1774. It is known that neither King nor his wife was affected with the…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY