Q: Contrast the function of homeotic genes with that of pair-rule genes.
A: Gene is the structural and functional unit in the DNA. Genes are composed of nucleotide nitrogenous…
Q: If a mother snail is heterozygous, Dd, which gene products will the egg cell receive?
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: What is the difference between a maternal-effect gene and a zygotic gene? Of the following genes…
A: Genes are the basic biological unit of heredity. They are a segment of deoxyribonucleic acid (DNA)…
Q: Define the term maternal effect genes, and explain why the protein products of some of these genes…
A: Genes come in pairs and are responsible for the inheritance and expression of the associated…
Q: Explain the role of mRNA, tRNA, and rRNA in geneexpression.
A: The transcription is the process in which the mRNA copied information from DNA for protein…
Q: Describe how P elements are used to producetransgenic Drosophila.
A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…
Q: Explain how DNA methylation and the formation of a DNA loop control the expression of the Igf2 gene…
A: ANSWER - Before giving the answer there are few words which we have to understand .…
Q: Explain the X-Linkage in Drosophila ?
A: X-linkage is the sex linkage that involves X chromosome. X linkage is the genetic factor or gene…
Q: Compare and contrast how maternal-effect genes, gap genes, and homeotic genes affect Drosophila…
A: Homeotic genes are the class of genes present in Drosophila that direct the development of the…
Q: Describe the formation steps of the dorso-ventral axis during development in Drosophila.
A: The mother fly produces oocytes that have already got anterior-posterior and dorsal-ventral axes…
Q: Outline the role of alternative splicing in the control of sex differentiation in Drosophila.
A: Alternative splicing is a regulated process in which a single gene coding for multiple proteins…
Q: Describe the formation steps of the primary axis that first occurs during development in Drosophila…
A: Embryos produce different types of cells and functional tissues and organs are formed by these cells…
Q: Define Drosophila,
A: Drosophila melanogaster is the species of Drosophila which is an inconspicuous, common fly found…
Q: Which of the following statement(s) is/are true with regard to positional information in Drosophila?…
A: Positional information is a signal which is received by each and every cell of the body in an…
Q: Explain the Drosophila genetics tool for gene expression known as the UAS-GAL4 system
A: The GAL4-UAS framework is a biochemical technique used to examine quality articulation and capacity…
Q: What changes, if any, would you predict would occur in the pigmentation of Drosophila melanogaster…
A: The relatively simple morphological trait that helps in the mapping of the genetic basis of…
Q: What is positional information? Discuss three different ways that cells obtain positional…
A: Drosophila is a commonly used model organism for studying developmental biology and genetics. The…
Q: In Drosophila melanogaster, curled wings (cu) was one of the first mutants described by
A: Genetics is a part of biology that deals with the transmission of characteristics from one…
Q: Describe P element transformation in Drosophila?
A: Introduction Transposons are the short highly repeated DNA sequence present in heterochromatic…
Q: Describe two of the advantages of Drosophila as a model organism in genetics studies.
A: Drosophila a genus of two-winged flies also known as fruit flies because they gather around overripe…
Q: Draw a diagram to illustrate how a concentration gradient of a transcription factor along the…
A: In drosophila the anterior posterior axis is determined before birth due to its maternal effects…
Q: If a Drosophila larva is missing much of its posterior end it is likely due to a mutation che: A.…
A: Since you have a question with multiple sub-parts, we solve the first sub-part for you. To get the…
Q: Explain how loss-of-function mutations in the following categories of genes would affect the…
A: Drosophila is also called fruit-fly. It is often used as a model for biological investigations.
Q: Why is drosophila aconvenient animal for thestudy of linked genes?
A: Genetics is the branch of biology, which deals with the study of genes, their pattern of…
Q: explain Position-effect variegation in Drosophila?
A: Mutation is defined as the permanent change or alterations happening in the sequence of the DNA of…
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: Explain how the Sxl promoter “counts” the number of Xchromosomes in Drosophila.
A: In Drosophila, male flies have only one X chromosome and female flies have two XX chromosomes.
Q: What will be the effect on sexual development in newly fertilized Drosophila embryos if the…
A: In Drosophila, sex determination is achieved by a balance of female determinants on the X chromosome…
Q: Explain the unique features of Ig genes.
A: Ig genes encode Immunoglobulins which provide protection to our body from Pathogens or foreign…
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: In Table 13-1, what is the most common function of proteins that contribute to pattern formation?…
A: Drosophila melanogaster, a fruit fly, is utilised as a model organism in research spanning from…
Q: Explain how alternative splicing affects sex determination in Drosophila.
A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…
Q: How do homeobox genes control segmental identity in drosophila embryo?
A: Homeobox genes encode DNA binding proteins that regulate the gene expression and controls…
Q: Explain the Retrotransposons—the Copia –White-Apricot System in Drosophila ?
A: In Drosophila the w(a) allele differs from the red-eye gene (w+) by the insertion of the…
Q: Why is it that mutations in bicoid and nanos exhibit genetic maternal effect in Drosophila (a…
A: the bicoid gene is a maternal effect gene in Drosophila which is responsible for the development of…
Q: What would be the effect of deleting the toll gene in Drosophila embryos?
A: What are toll genes? Toll is a maternally required Drosophila gene that encodes a transmembrane…
Q: What are some master genes important in embryonic development? Discuss.
A: INTRODUCTION HOX gene HOX genes are the master gene involved in embryonic development in animals.…
Q: Describe how chromatin remodeling complexes allowgene expression to occur.
A: Chromatin remodeling is the reorganization of chromatin from a compressed state to a…
Q: Describe the expression pattern of the Drosophila geneeve in the early embryo.
A: Drosophila development involves the specification of early embryonic cells by various cytoplasmic…
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: Illustrate the chromosomes in the salivary gland of Drosophila melanogaster
A: Drosophila melanogaster have polytene chromosome in their salivary gland.
Q: Describe how different types of chromosomalrearrangements alter gene expression patterns orgenerate…
A: Chromosomal rearrangement is a that is mutation caused by a breakage in the deoxyribonucleic acid…
Q: How do we know that Drosophila utilizes a different sexdetermination mechanism than mammals, even…
A: A chromosome is a compact form of DNA molecule present in dividing cells. In metabolically active…
Q: How Drosophila Mutations that Affect the Two Sexes Differently?
A: Drosophila is a vastly studied organism, especially when it comes to genetic studies. XX makes the…
Q: The anterior–posterior axis of a Drosophila embryo is first established by certain (a) homeotic…
A: Drosophila is an important organism in developmental genetics research because it has a short life…
Q: Give examples of constitutive and facultative heterochromatin in:a. Drosophilab. humans
A: The heterochromatin is a tightly packed form of DNA (deoxyribonucleic acid). These are classified…
Q: Explain how polytene chromosomes of Drosophila are produced and how they form a six-armed structure?
A: Polytene chromosomes are large chromosomes that have thousands of DNA strands. They provide a high…
Describe the relationship between homeotic genes in Drosophila and in mice.
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- The anteriorposterior axis of a Drosophila embryo is first established by certain (a) homeotic genes (b) maternal effect genes (c) segmentation genes (d) proto-oncogenes (e) pairrule genesList the stages of Drosophila development.Describe the expression pattern of the Drosophila geneeve in the early embryo.
- Compare and contrast how maternal-effect genes, gap genes, and homeotic genes affect Drosophila development.Explain the functional roles of maternal-effect genes, gap genes, pair-rule genes, and segment-polarity genes in Drosophila development.Explain how polytene chromosomes of Drosophila are produced and how they form a six-armed structure?
- The figure below shows the distribution of proteins during embryo development in Drosophila. These proteins are encoded by which types of genes? Which proteins regulate the expression of these genes?Describe how P elements are used to producetransgenic Drosophila.What would be the most likely effect of inhibiting the translation of hunchback mRNA throughout a Drosophila embryo?
- How do homeobox genes control segmental identity in drosophila embryo?In the gene in the fruit fly (Drosophila) called antennepedia. It controls the formation of which structures? What happens when it is mutated?Explain what a morphogen is, and describe how it exerts its effects. What do you expect will happen when a morphogen is expressed in the wrong place in an embryo? List five examples of morphogens that function in Drosophila.