The homeotic mutation Antennapedia causes mutant Drosophila to have legs in place of antennae and is a dominant gain of-function mutation. What are the properties of such mutations?How does the Antennapedia gene change antennae into legs?
Q: . Why is Drosophila used extensively for genetic studies?
A: The characteristics which made an organisms particularly good mondel for genetic experimentation are…
Q: You isolate a glp-1 mutation of C. elegans and discover that the DNA region encoding the spatial…
A: Maternal effect genes are the genes present in the genome of the mother and are responsible for the…
Q: How did mutations in the Drosophila ANT-C gene complex provide researchers with information on the…
A: The embryonic development of drosophila is regulated by differential gene expression. These flies…
Q: What does Artemis (protein) do? How do loss of function mutations associated with Artemis cause…
A: Artemis is nuclear protein which is involved in DNA repair as well as V(D)J recombination.…
Q: Proteins that are always present in the cell are encoded in genes that are __________ expressed,…
A: In a cell, a gene is a segment of DNA that can has instructions to form a protein. Gene expression…
Q: You are studying Hox genes in crane flies (Leptotarsus testaceus). The cranefly genome is sequenced,…
A: To find: Where the homologue of EVE gene is expressed in cranefly embryos
Q: How is the identity of the different Drosophila imaginal discs established in the embryo—for…
A: Imaginal disc forms a sac like epithelial structure. These are found in the larva of insects and are…
Q: We know quite a bit about Notch/Delta and Hes gene oscillations during embryonic development. What…
A: Embryogenesis includes coordinated cycles of cell proliferation and differentiation. Mammalian Hes…
Q: What is effect of turning on and off of genes? How do we measure gene expression? What is gene…
A: Answer1) The effect of turning a gene on and off is observed on its expression and ultimately on the…
Q: What does this expression mean? DNA → RNA→ Protein A DNA first turns into RNA; then the…
A: DNA and RNA are genetic material of biological organisms and they store all the genetic information…
Q: Can I get a paragraph about the Repo protein that is used in Drosophila melangaster?
A: REPO (reverse polarity) is a paired-like homeodomain protein expressed in the glial cells of…
Q: In Drosophila, both fushi tarazu (ftz) and engrailed (eng) genes encode homeobox transcription…
A: In this two genes are involved. Those are ftz and another one engrailed genes which encode for…
Q: Yersinia pestis has temperature dependent regulation of it’s gene expression. How does its gene…
A: The bacterium Yersinia pestis is a Gram-negative, rod-shaped non-motile obligate aerobe that causes…
Q: Which statements explain the most likely cause of the difference between the hands of chimpanzees…
A: The hands of gorilla has a significant difference with the hands of chimpanzees. Using the method of…
Q: How does the control of gene expression in prokaryotes differ from that of eukaryotes
A: The gene expression the process in which the genetic information present in the DNA (gene) is copied…
Q: What DNA chemical modification can change the expression level of a target gene without sequence…
A: Introduction Epigenetics refers to the heritable or non-heritable changes in gene expression,…
Q: Why is Drosophila used extensively for genetic studies?
A: The fruit fly or Drosophila melanogaster is used as a model organism for the study of different…
Q: Propose one or more explanations for why Hox genes exhibit a relation between their order on the…
A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…
Q: do neutral mutations affect gene expressi
A: Except for some viruses, most animals' genetic material is a double-stranded molecule called DNA. A…
Q: e homeotic mutation Antennapedia causes mutant Drosophila to have legs in place of antennae and is a…
A: Dominant gain-of-function mutations affect just one copy of an allele and result in the production…
Q: times of nutrient stress, the cellular slime mold Dictyostelium discoideum develops one of two cell…
A: Dictyostelium discoideum is a species of soil-dwelling amoeba belonging to the phylum Amoebozoa,
Q: The loss-of-function Naked mutant in Drosophila lacks bristles. What is the most appropriate…
A: Answer. Cancer critical genes are grouped into two broad classes, according to whether the cancer…
Q: The FOXP2 gene is sometimes called the “language gene.” Why is this name inaccurate?
A: The FOXP2 gene present in many vertebrate including human beings. It encodes a protein Forkhead…
Q: a geneticist were to genetically modify a mouse strain that shows reduced calcium channel activity…
A: Whenever calcium channels are blocked in pre synaptic membrane, the synaptic vesicular fusion and…
Q: . Neurobiology of speech and language has been studied in a family in which half of the members have…
A: Answer :- option (B) is correct. - Determine the DNA sequence of the FOXP2 gene in several species…
Q: ________ are a commonly used research model for studying the effects of genetic defects in mammals.…
A: For studying genetic defects in mammals, model organisms are used. Generally, model organisms are…
Q: Explain the functional roles of maternal-effect genes, gap genes, pair-rule genes, and…
A: The organism Drosophila melanogaster is also known as the fruit fly. These flies are easy to…
Q: noticed that the bacterial gene for actin; which has 375 amino acids, has had a mutation at the 25th…
A: The changes in DNA nucleotides due to environmental conditions like exposure to radiation or UV…
Q: At the molecular level, how do you think a gain-of-function mutation in a developmental gene might…
A: Mutations are referred to as the sudden heritable changes in the deoxyribonucleic aid of an…
Q: You isolate a glp-1 mutation of C. elegans and discoverthat the DNA region encoding the spatial…
A: The genome is made up of one to several long DNA molecules, and mutations in these molecules can…
Q: How would you devise a screen to identify recessive mutations in Drosophila that result in embryo…
A: Fruit flies, or Drosophila melanogaster, are a good model for studying genetics and were chosen by…
Q: Explain why loss-of-function hedgehog and smoothened mutations yield the same phenotype in flies,…
A: The Hedgehog signalling pathway is responsible for transferring information to embryonic cells.…
Q: What is the difference between gain of function and loss of function mutations?
A: Mutations is a change in a DNA sequence that can be caused due to DNA replication error made during…
Q: Harry Potter speaks parseltongue (he can talk to snakes). Dumbledore explains that this is because…
A: Introduction Gene is the basic structural and functional unit of heredity. Gene controls all the…
Q: Which of the following scenario will result in greater consequences in terms of gene expression?…
A: Gene expression is basically the process in which the gene (contained typically in a DNA) is…
Q: A mutation occurs in the Drosophila doublesex gene that prevents Tra from binding to the dsx RNA…
A: Any alternation in the sequence of nucleotide in the genome of any organism is said to be mutation.…
Q: Homeotic genes(A) encode transcription factors that control the expression ofgenes responsible for…
A: Gene is the basic subunit of the chromosome and it refers to the nucleotide sequence. It is known to…
Q: Person A expresses a gene that can regulate the expression of multiple language genes. What could be…
A: Humans have unique natural ability to develop high complex linguistic systems. It is an ability that…
Q: What is Gene translocation? Would a mutation in one of your muscle cells affect your offspring? Why…
A: Mutations are changes in the sequence of nucleotide of DNA.
Q: One of the first genes that was determined to control circadian-clock timing is the per gene in…
A: A circadian rhythm, also known as a circadian cycle, is a natural, internal mechanism that controls…
Q: Which specialized gene product is responsible for the fusion of mononucleated skin fibroblasts into…
A: Positive feedback in gene regulation is an interesting phenomena observed in many organisms in…
Q: How have we discovered that specific genes control development in an organism like Drosophila?
A: Genetics is a branch of the biology involved in the study of genes, genetic variation, and heredity…
Q: What is the process of gene expression? and what role does RNA play in gene expression?
A: Gene expression involves two important processes that are transcription and translation. Both…
Q: e. You also study the expression of a different mutants for this gene. For each mutant answer the…
A: Translation is the process of synthesis of protein from the mRNA in the cytoplasm of cell.
Q: What is the function of Drosophila melanogaster RNA polymerase II in the cell
A: Introduction Drosophila melanogaster is used as a model organism to study disciplines ranging from…
Q: Which mechanisms for regulating gene expression may be applied for the treatment of such diseases?…
A: Gene expression is the process by which information from a gene is used to make a protein. Gene…
Q: In the introduction to this chapter, we discussed the role of famine during early prenatal…
A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…
Q: In the gene in the fruit fly (Drosophila) called antennepedia. It controls the formation of which…
A: Mutations can be defined as the alteration in the sequence of the nucleotide of the genome.…
The homeotic mutation Antennapedia causes mutant Drosophila to have legs in place of antennae and is a dominant gain of-function mutation. What are the properties of such mutations?How does the Antennapedia gene change antennae into legs?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- The homeotic mutation Antennapedia causes mutant Drosophila to have legs in place of antennae and is a dominant gain-of-function mutation. List all the properties of such mutations. How does the Antennapedia gene change antennae into legs?The Drosophila homeotic mutation spineless aristapedia (ssa ) results in the formation of a miniature tarsal structure (normally part of the leg) on the end of the antenna. What insight is provided by (ssa ) concerning the role of genes during determination?For the first experiment ever on Drosophila mutations. Answer the following questions. a. What is the title of the first published paper explained the experiment and what is the name of the Author? b. What is the first mutation discovered in Drosophila? c. Explain the changes in the Drosophila yellow mutant (Y)compared to wild type.
- ) Explain how and why dorsal/ventral polarity will be affected in fly Question 3 (1. embryos carrying the following mutations; also in each case darken in the area of the cells in the cross-sectional view of the fly embryo which are expected to express the paulie gene. D = dorsal; V = ventral. a) a mutation which results in the deletion of the cytoplasmic domain of the Cookie protein. b) A mutation which results in a constitutively active Bombe protein, i.e. the Bombe protein is always in an activated state. c) A mutation which causes the Pickle protein to be retained in the cytoplasm of the embryo.Following a mutagenesis experiment to identify novel genes affecting the circadian clock in Drosophila melanogaster you discover several mutants. You start considering two of those mutants that you call C and d. The two homozygous C/C and d/d are arrhythmic (arrhythmic is the definition of their phenotype), whereas the two heterozygous C/C and D/d are rhythmic (rhythmic is the definition of their phenotype) with a 24h period. You make two true-breeding stocks: stock 3 homozygous for C and stock 4 homozygous for d. You cross them in both directions and in both cases you observe complementation with no difference between males and females. Then you take the progeny of one cross, for instance the F1 of Females 3 x Males 4, and you perform a Testcross. Out of 1000 flies resulting from the Testcross only 125 are rhythmic. Using the number of flies expected for the Parental and the Recombinant genotypes and the formula that defines recombination frequency, what is the distance between loci C…Following a mutagenesis experiment to identify novel genes affecting the circadian clock in Drosophila melanogaster you discover several mutants. You start considering two of those mutants that you call c and d. The two homozygous c/c and d/d are arrhythmic (arrhythmic is the definition of their phenotype), whereas the two heterozygous C/c and D/d are rhythmic (rhythmic is the definition of their phenotype) with a 24h period. You make two true-breeding stocks: stock 3 homozygous for c and stock 4 homozygous for d. You cross them in both directions and in both cases you observe complementation with no difference between males and females. Then you take the progeny of one cross, for instance the F1 of Females 3 x Males 4, and you perform a Testcross. Out of 1000 flies resulting from the Testcross only 125 are rhythmic. Considering that out of 1000 flies resulting from the Testcross only 125 are rhythmic how many flies in total are approximatively expected for the Parental genotypes?…
- Following a mutagenesis experiment to identify novel genes affecting the circadian clock in Drosophila melanogaster you discover several mutants. You start considering two of those mutants that you call c and d. The two homozygous c/c and d/d are arrhythmic (arrhythmic is the definition of their phenotype), whereas the two heterozygous C/c and D/d are rhythmic (rhythmic is the definition of their phenotype) with a 24h period. You make two true-breeding stocks: stock 3 homozygous for c and stock 4 homozygous for d. You cross them in both directions and in both cases you observe complementation with no difference between males and females. Then you take the progeny of one cross, for instance the F1 of Females 3 x Males 4, and you perform a Testcross. Out of 1000 flies resulting from the Testcross only 125 are rhythmic. Which is the genotype of the rhythmic flies resulting from the testcross? Select only one answer 1. C/C d/d 2. C/c D/d 3. C/c d/d 4. c/c…Following a mutagenesis experiment to identify novel genes affecting the circadian clock in Drosophila melanogaster you discover several mutants. You start considering two of those mutants that you call c and d. The two homozygous c/c and d/d are arrhythmic (arrhythmic is the definition of their phenotype), whereas the two heterozygous C/c and D/d are rhythmic (rhythmic is the definition of their phenotype) with a 24h period. You make two true-breeding stocks: stock 3 homozygous for c and stock 4 homozygous for d. You cross them in both directions and in both cases you observe complementation with no difference between males and females. Then you take the progeny of one cross, for instance the F1 of Females 3 x Males 4, and you perform a Testcross. Out of 1000 flies resulting from the Testcross only 125 are rhythmic. Using the number of flies expected for the Parental and the Recombinant genotypes and the formula that defines recombination frequency, what is the recombination…Following a mutagenesis experiment to identify novel genes affecting the circadian clock in Drosophila melanogaster you discover several mutants. You start considering two of those mutants that you call c and d. The two homozygous c/c and d/d are arrhythmic (arrhythmic is the definition of their phenotype), whereas the two heterozygous C/c and D/d are rhythmic (rhythmic is the definition of their phenotype) with a 24h period. You make two true-breeding stocks: stock 3 homozygous for c and stock 4 homozygous for d. You cross them in both directions and in both cases you observe complementation with no difference between males and females. Then you take the progeny of one cross, for instance the F1 of Females 3 x Males 4, and you perform a Testcross. Out of 1000 flies resulting from the Testcross only 125 are rhythmic. Comparing the number of flies expected for the Parental and the Recombinant genotypes, what can be concluded about the C and D loci? Select only one answer. 1. The…
- Following a mutagenesis experiment to identify novel genes affecting the circadian clock in Drosophila melanogaster you discover several mutants. You start considering two of those mutants that you call c and d. The two homozygous c/c and d/d are arrhythmic (arrhythmic is the definition of their phenotype), whereas the two heterozygous C/c and D/d are rhythmic (rhythmic is the definition of their phenotype) with a 24h period. You make two true-breeding stocks: stock 3 homozygous for c and stock 4 homozygous for d. You cross them in both directions and in both cases you observe complementation with no difference between males and females. Then you take the progeny of one cross, for instance the F1 of Females 3 x Males 4, and you perform a Testcross. Out of 1000 flies resulting from the Testcross only 125 are rhythmic. What is the genotype of Males 4? Select only one answer. 01. C/C D/D O 2. C/C D/d O3. C/C d/d O 4. C/C D/D O 5. c/c D/d O 6. C/cd/d 07. c/c D/D O 8. C/C D/d O 9. c/cd/d KFollowing a mutagenesis experiment to identify novel genes affecting the circadian clock in Drosophila melanogaster you discover several mutants. You start considering two of those mutants that you call c and d. The two homozygous c/c and d/d are arrhythmic (arrhythmic is the definition of their phenotype), whereas the two heterozygous C/c and D/d are rhythmic (rhythmic is the definition of their phenotype) with a 24h period. You make two true-breeding stocks: stock 3 homozygous for c and stock 4 homozygous for d. You cross them in both directions and in both cases you observe complementation with no difference between males and females. Then you take the progeny of one cross, for instance the F1 of Females 3 x Males 4, and you perform a Testcross. Out of 1000 flies resulting from the Testcross only 125 are rhythmic. What is the genotype of the F1 (progeny of Females 3 x Males 4). Select only one answer. 1. C/c D/d 2. C/C d/d 3. C/C D/D 4. c/c D/d…Following a mutagenesis experiment to identify novel genes affecting the circadian clock in Drosophila melanogaster you discover several mutants. You start considering two of those mutants that you call c and d. The two homozygous c/c and d/d are arrhythmic (arrhythmic is the definition of their phenotype), whereas the two heterozygous C/c and D/d are rhythmic (rhythmic is the definition of their phenotype) with a 24h period. You make two true-breeding stocks: stock 3 homozygous for c and stock 4 homozygous for d. You cross them in both directions and in both cases you observe complementation with no difference between males and females. Then you take the progeny of one cross, for instance the F1 of Females 3 x Males 4, and you perform a Testcross. Out of 1000 flies resulting from the lestcross only 125 are rhythmic. Using the number of flies expected for the Parental and the Recombinant genotypes and the formula that defines recombination frequency, what is the distance between loci C…