Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 18, Problem 15SQ
Summary Introduction
Concept introduction: The term “master regulator gene” was coined by Susumu Ohno over 30 years ago. The development of an organism from a fertilized egg from its embryonic stage to adulthood requires the synchronized expression of sets of genes at the right times and in the proper places. Master regulator genes are the sets of genes that are responsible for the expression of normal body features of an adult one.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Homologous genesa. are derived from the same ancestral gene.b. are likely to carry out the same or similar functions.c. have similar DNA sequences.d. exhibit all of the above features.
You are studying the evolution of a trait in two species of snakes where both species can flatten themselves so that they can glide from tree to tree. You know that this trait is not present in the ancestor of all snakes. With this information, is the trait a homology?
a.
Yes
b.
No
c.
Only in one of the species.
d.
Not enough information to tell.
Gene duplications during vertebrate evolution have led toA. the control of body segmentation in mice by four copies of Hox genes.B. the abundance of somites in vertebrate embryos.C. the loss of other genes.D. a long development period of feathers in the chicken embryo.E. All of the above
Chapter 18 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 18 - Hawaiian Honeycreeper Phylogeny The po'ouli...Ch. 18 - Hawaiian Honeycreeper Phylogeny The po'ouli...Ch. 18 - Hawaiian Honeycreeper Phylogeny The po'ouli...Ch. 18 - Hawaiian Honeycreeper Phylogeny The po'ouli...Ch. 18 - Prob. 1SQCh. 18 - Which of the following assumptions is not part of...Ch. 18 - Prob. 3SQCh. 18 - Prob. 4SQCh. 18 - In a cladogram, each node represents a(n) _______...Ch. 18 - Constructing a cladogram _______ . a. may involve...
Ch. 18 - In cladograms, sister groups are _______ . a....Ch. 18 - Through ______, a body part of an ancestor is...Ch. 18 - Homologous structures among major groups of...Ch. 18 - Prob. 10SQCh. 18 - Molecular clocks are based on comparisons of the...Ch. 18 - Prob. 12SQCh. 18 - All of the following data types can be used as...Ch. 18 - Choose the statement that is incorrect. a....Ch. 18 - Prob. 15SQCh. 18 - Match the terms with the most suitable...Ch. 18 - In the late 1800s, a biologist studying animal...Ch. 18 - The photos shown above illustrate a case of...Ch. 18 - Bonobas and chimpanzees are sister groups. Humans,...
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
- Butterfly wings and bat wings are ____ structures, while bird wings and bat wings are ____ structures. a. homozygous … heterozygous b. homologous … analogous c. analogous … phyllogenous d. analogous … homologousarrow_forwardWhy are human and chimpanzee DNA 96 percent similar? Please choose the best option.a) Both groups show similarities in their fossil record.b) Humans and chimpanzees share several similar traits such as the use of tools.c) These two species descended from a recent common ancestor.d) Natural selection has favored those particular genes in both humans and chimpanzees.arrow_forward1)The wings of an insect and bird have similar structures and purposes, but different ancestors; therefore, the wings of both are ______ structures. * A. Homologous B. Analogous C. Identical D. Vestigialarrow_forward
- The hoof of a horse and the claw of a cat are found to both form due to the expression of the same gene in both species. This suggests that the two structures are…? Group of answer choices a. homologous b. identical c. have nothing to do with one another d. the result of convergent evolutionarrow_forwardWhy are humans so genetically similar within our species? A. Because humans evolved in multiple locations around the world at different times. B. Because humans evolved in one location (Africa) and we have existed as a species for very long time. C. Because humans evolved in one location (Africa) and we haven't existed as a species for very long. D. Humans are not very genetically similar to one another.arrow_forwardTraits that are specialized to a particular lineage, and not widely shared among remotely related lineages, are called (a)ancestral (primitive) (b)derived (modified) (c) non adaptivearrow_forward
- . DNA sequences in many human genes are very similar to thesequences of corresponding genes in chimpanzees. The mostlikely explanation for this result is that(A) humans and chimpanzees share a relatively recent common ancestor.(B) humans evolved from chimpanzees.(C) chimpanzees evolved from humans.(D) convergent evolution led to the DNA similarities.arrow_forwardAll mammals have tailbones and muscles for moving a tail. Even humans have a reduced tailbone and remnant tail-twitching muscles, though these features have no apparent usefulness. These traits in humans would best be described as (a) convergent structures. (b) fossil evidence. (c) evidence from biogeography. (d) vestigial traits.arrow_forwardThe definition of "lineage" is: Select one or more: a. the same as the Tree of Life b. a population of organisms captured at one specific time c. a series of ancestor and descendant lineages over time d. a character that has evolved over timearrow_forward
- Assume the common ancestor was non-venomous, had non-jointed limbs, antennae, and 10 legs. Assume that all evolutionary changes in these traits are shown. a) What traits does Species C have? b) What traits does species F have?arrow_forwardThe challenge in using sequence data to estimate the evolutionary tree for all living things is to find a gene that shows recognizable sequence similarities even between highly distantly related species . Which of the following should NOT be among the features of this gene? A. The gene subject to strong diversifying selection. B. It is present in all organisms. C. It encodes a product whose function is essential. D. The function of the gene must have remained the same in all organisms.arrow_forwardAn octopus and an owl both have large eyes with similar structures. If their most recent common ancestor lacked eyes what is the reason for the similarity? Group of answer choices a. genetic drift b. convergent evolution c. mutation d. homology e. gene flowarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY