How are the mammalian Hox genes related to the homeotic genes of Drosophila? How do the Hox genes contribute to morphological diversity in vertebrates, give an example.
Q: How would you determine that the sexual dimorphism in throat patch coloration in male hummingbirds…
A: Sexual dimorphism is known as a condition in which the two sexes that belong to the same species are…
Q: What might have happened if finches didn't evolve into many different species?
A: Darwin finches are the best example of adaptive radiation and natural selection. One of the major…
Q: The relative lengths of the frog and mouse branches in the phylogenetic tree in the figure below…
A: A phylogenetic tree is a diagram that addresses developmental connections among organisms.…
Q: Crawfish are shelled organisms that live in shallow freshwater rivers. They can have antennae of…
A: Offsprings can end up with the traits that are different from the traits of their parents. The…
Q: Which statement is true of hox genes? Group of answer choices A. they regulate development of body…
A: Hox genes - Most animal homeotic genes code transcription encodes proteins that contain a region a…
Q: Is viviparity a synapomorphy of the mammals? Explain.
A: Synapomorphy is a characteristic that is present in the Ancestors and which is also shared by its…
Q: Would you expect more or less similarity between embryos from distantly related species? Explain and…
A: In evolution, embryology is one type of study which deals with embryos. An embryo is an unborn (or…
Q: DNA sequences called homeoboxes help homeotic genes in animals direct development. Given that they…
A: Similar sequences don’t ensure complete similarity among the species. It is studied under the domain…
Q: Some uninformed people might argue that studying the development of an obscure little fish like the…
A: Three-spined stickleback fish are found in most coastal and inland waters of 30°N. The average…
Q: What are the roles of Hox genes in the development of Nervous System
A: Hox genes are the genetic switches that are involved in turning on and turning off other genes as…
Q: The Brachyury and Tbx5 in vertebrates and the Ap3 gene in flowering plants a. are examples of Hox…
A: It is expressed in the developing notochord and the Brachyury gene of ascidians encodes a…
Q: First, concerningthe evolution of development, what have been the changes in developmentalmechanisms…
A: (Since you have posted multiple doubts, we have solved first question below. Please post rest…
Q: Many species look similar as embryos. What causes them to appear different as adults? Why does the…
A: The embryonic stage is an early stage of development of an individual which occurs just after the…
Q: Which of the following is a reasonable explanation for this pattern? Group of answer choices A)…
A: Neoteny The traits which is seen in the juvenile and remain unchanged as the organism grow. It is…
Q: Research shows that Neandertals coexisted with at least three other species, including Homo sapiens.…
A: Neanderthals were extremely early (archaic) humans that inhabited throughout Europe and Western Asia…
Q: What are the modifications that are observed in birds that help them fly?
A: Birds are the group of vertebrate animals. They belong to the class Aves and phylum Chordata. They…
Q: Dominguez et al. (2004) suggest that by studying genes that determine growth and tissue…
A: Mutation in eyeless genes leads to the loss of eye structure in fly and mutation in the human…
Q: What are the differences of dogs from other kingdoms?
A: Identification : Whittaker proposes 5 kingdom classification based upon cell structure,…
Q: Gene duplications during vertebrate evolution have led toA. the control of body segmentation in mice…
A: Gene duplication is an event that leads to the creation of new genetic material during the process…
Q: Explain how heterochrony could lead to the development of a long neck in giraffes, compared to its…
A: Heterochrony is also known as change in development timing and it is an important mechanism of…
Q: Which statement about Hox genes is false? a. They are expressed in similar patterns in the…
A: The fundamental unit of genetics that carries forward the inheritable information and character…
Q: Can convergent (or parallel) evolution of similar morphology in two different lineages involve DNA…
A:
Q: Explain how larger Horns in the males of dung beetles could have evolved?
A: The dung bettles are the type of beetles that feed on the dung and the faeces. The male has a horn…
Q: Why are beneficial adaptations more likely to be passed on to offspring
A: Always dominant traits are passed to offspring/progeny . Through sexual reproduction heritable…
Q: What factors could be responsible for the size differences among modern vertebrate genomes?
A: The complete set of genetic information in an organism is known as genome. It provides all of the…
Q: How many globin genes are present in mammals? What is the evidence indicating that all the globin…
A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…
Q: ow is that physiological mechanism being regulated of hibernating bats (Ch
A: A way by which animals conserve their energy for survival during adverse weather conditions or lack…
Q: Often reliquishing the young ones owing to food shortage is one of the common behaviour exhibited by…
A: Animal behaviour is the research of how animals navigate around in their surroundings, engage…
Q: Which of the following organisms would have 4 copies of the Hox genes? lancelets lamprey…
A: Hox genes are also known as homeotic genes . Hox genes code for transcription factor that play…
Q: Which of the following examples from class show that a mutation can have evolutionary benefits?…
A: Mutations are an important aspect of evolution. All the genetic features in an organism were,…
Q: What is a potential result of injecting notochord tissue into the ventral (bottom) region of the…
A: Option B
Q: Propose a hypothesis that could explain the following observation. A graduate student performing…
A: The mutation which affects wings style is indeed Recessive in inheritance.
Q: Is this evolutionary conservation of the pecten structure evidence that natural selection might be…
A: Birds belong to the class Aves under vertebrates in the animal kingdom. Birds have the biggest…
Q: Runt is a Drosophila gene involved in development. Mutation of runt leads to an embryonic lethal…
A: There are three important class of segmentation genes namely - gap genes, segment polarity genes and…
Q: What is the function of the Pax 6 gene in the mouse eye reference to HOX gene
A: During early embryonic development, homeodomain proteins regulate gene expression and cell…
Q: Considering the evolution of species, could a gene that is conserved from yeast to humans have…
A: Evolution is the process of change in the heritable traits of biological populations through…
Q: Compare and contrast Ontogenetic vs. Phylogenetic Development
A: Since you asked multiple questions we will answer the first question for you. If you want any…
Q: What genomes of animals have scientists sequenced and what are some resulting discoveries?
A: Sequencing This method is used in molecular biology. This technique is used to study genomes and the…
Q: Lactation and fur are synapomorphies that all mammals share. What else can we infer about lactation…
A: Synapomorphies are shared advanced characters.
Q: Should we add genes to embryos to allow them to survive in differentenvironments or to have greater…
A: Genome editing is a genetic engineering technique that refers to the process of inserting, deleting,…
Q: Describe the radiation in vertebrate forms from phylotypic stage by focusing on three groups of…
A: Embryology is a scientific discipline concerned with the formation, growth, and development of…
Q: Assume that you discovered Caenorhabditis elegans that crawl significantly slower than others. How…
A:
Q: Dominguez et al. (2004) suggest that by studying genes that determine growth and tissue…
A: In living organisms, the genetic instructions for growth, development, functioning, and reproduction…
Q: Conservation of developmental genes in evolution is supported by all of the observations except that…
A: INTRODUCTION A homeotic gene is a collection of genes that manage the pattern of body formation…
Q: Explain how adjustments to gene expression affect the form andfunction of male and female mammals.
A: Whenever the sex chromosomes are considered, it is always stated that the female contains XX…
Q: Chimpanzees and humans obviously look and act very differently, but their genomes are remarkably…
A: Chimpanzees and humans obviously look and act very differently, but their genomes are remarkably…
Q: What are the physical similarities exist between each of the embryos? How does the pattern of…
A: Introduction: Evolution refers to the change in the species with time. Every single species living…
Q: Which of the following best explains the number of similarities between the amino acid sequences of…
A: The hedgehog (Hh) protein family control cell growth, survival, fate and are responsible for almost…
Q: What evolutionary insights might you gain if you compare the transcriptomes of cells from the limb…
A: Humans and non-human primates are generally similar to much greater extent. But still there is 9.1%…
How are the mammalian Hox genes related to the homeotic genes of Drosophila? How do the Hox genes contribute to morphological diversity in vertebrates, give an example.
Step by step
Solved in 2 steps
- What is positional information? Discuss three different ways that cells obtain positional information. Which of these three ways do you think is the most important for the formation of a segmented body pattern in Drosophila?What is positional information? What are three different ways that cells obtain positional information? Which of these ways do you think is the most important for the formation of a segmented body pattern in Drosophila?What is the function of the Pax 6 gene in the mouse eye reference to HOX gene?
- For each of the following, identify whether the statement about Hox genes is true for Drosophila only, vertebrates only, or both Drosophila and vertebrates. Hox genes are present in the genome. Both Drosophila and vertebrat v Different hox genes are expressed in [Choose ] body segments along the anterior- posterior body axis. Duplication has resulted in several hox [Choose] gene clusters in the genome. Hox genes are expressed after gap [Choose ] genes and pair-rule genes.A number of genes that control expression of Hox genes in Drosophila have been identified. One of these homozygous mutants is extra sex combs, where some of the head and all of the thorax and abdominal segments develop as the last abdominal segment. In other words, all affected segments develop as posterior segments. What does this phenotype tell you about which set of Hox genes is controlled by the extra sex combs gene?You have identified a Drosophila gene that is expressed exclusively in the odd-numbered "stripes" in the cellular blastoderm. Assuming that this gene is not redundant, what would be the most likely phenotype cause by a loss-of-function mutation in this gene? an embryo missing odd numbered segments an adult fly with a second pair of wings instead of halteres an embryo with two anterior ends an embryo missing even-numbered segments an embryo missing larval segments 3-10
- Dominguez et al. (2004) suggest that by studying genes that determine growth and tissue specification in the eye of Drosophila, much can be learned about human eye development. (a) What evidence suggests that genetic eye determinants in Drosophila are also found in humans? Include a discussion of orthologous genes in your answer. (b) What evidence indicates that the eyeless gene is part of a developmental network? (c) Are genetic networks likely to specify developmental processes in general? Explain fully and provide an example.Name three possible factors contributing to early asymmetries in a developing embryo (i.e. what are the kinds of things early on that lead to the development of the body axes - dn, a/p, l/r, etc)? In the fruit fly drosophila melanogaster, the anterior-to-posterior body axis becomes segmented into distinct regions. explain the role of the genes bicoid and nanos in this process.Dominguez et al. (2004) suggest that by studying genes that determine growth and tissue specification in the eye of Drosophila, much can be learned about human eye development. (a) What evidence suggests that genetic eye determinants in Drosophila are also found in humans? Include a discussion of orthologous genes in your answer. (b) What evidence indicates that the eyeless gene is part of a developmental network?
- What changes, if any, would you predict would occur in the pigmentation of Drosophila melanogaster with increased global warming? What type of genetic changes would you expect to see? Be as specific as you can.Which of the following is NOT true regarding Hox genes. A) The sequence they appear in their corresponding chromosomes is the same order of their expression along the front to back of the developing animal. B) Homologues of the same Hox genes found in flies can be found in humans. C) Hox genes are only found in animals with bilateral symmetry. D) Animals with more complex body plans tend to have more sets of Hox genes through gene duplication events.How is lozenge eye in drosophila an example of pseudoallelism?