Q: What are the eight ways gene expression can be regulated? Please summarize each in one-two sentences
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Q: Two major types of mutations are gene mutation and chromosome mutation. Which mutation is more…
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Q: Draw a basket mutant embryo. What does basket encode? Why do the mutant embryos have this phenotype?
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A: Introduction A mutation is a change in an organism's DNA sequence. Mutations can be caused by…
Q: Beadle and Tatum’s BEST contribution to how gene expression is understood can be summarized as what?…
A: Beadle and Tatum were able to confirm Garrod's hypothesis with the help of genetic and biochemical…
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…
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Q: What is gene expression? What processes are involved to express a gene in a cell?
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Q: Describe two of the advantages of Drosophila as a model organism in genetics studies.
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A: In drosophila the anterior posterior axis is determined before birth due to its maternal effects…
Q: Which of the following statements about the differential expression of human genes is correct?
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Q: You cause a mutation in the bicoid gene in a Drosophila embryo. What effect will this have on this…
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A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…
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Q: What is similar about the positions of the HOX genes on the chromosomes in the fruit fly and mouse;…
A: Homeotic genes are regulatory genes that play an important role in the regulation of development of…
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Q: How would a DNA codon sequence influence the shape and the expression of the allele
A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…
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Q: At the molecular level, how do you think a gain-of-function mutation in a developmental gene might…
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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: A mutation in which most of the pi sequence of the gene is removed which type of allele?
A: Introduction :- Mutation is a change in a DNA sequence. Mutations can results from DNA copying…
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Q: How is lozenge eye in drosophila an example of pseudoallelism?
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Q: What is positional information? What are three different ways that cells obtain positional…
A: Development is a continuous change in shape, size, and function, throughout the life of an organism.…
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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: 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: Molecular geneticists have performed experiments in which they altered the number of copies of the…
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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 cells control gene expression? How do cell "switch" genes on/off? Draw a flow chart to match?
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Q: How Drosophila Mutations that Affect the Two Sexes Differently?
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Q: genetic mutations help in mapping the location of genes on a chromosome
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Q: Here are schematic diagrams of mutant Drosophila larvae. The left side of each pair shows a…
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Q: Genes code for proteins that determine the phenotypes of individuals. Individuals inherit genes from…
A: Chromosomes, which are found in the cell nucleus, contain genes. Hundreds to thousands of genes are…
Q: How do changes in gene expression relate to cell differentiation and specialization? Does every…
A: The DNA is the genetic material in most of the organisms including human. this DNA is transcribed…
Q: There is a gene in the fruit fly (Drosophila) called antennepedia. It controls the formation of…
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Q: It seems that developmental genetics boils down to a complex network of gene regulation. Try to draw…
A: The developmental genetics of Drosophila is a complex network of genes which are regulating the…
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In the gene in the fruit fly (Drosophila) called antennepedia. It controls the formation of which structures? What happens when it is mutated?
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- What are epigenetic modifications? a. the addition of reversible changes to histone proteins and DNA b. the removal of nucleosomes from the DNA c. the addition of more nucleosomes to the DNA d. mutation of the DNA sequenceHow might a point mutation in DNA affect the phenotype. How the genome is expressed in the organism? (Please explain this at the molecular level).What is effect of turning on and off of genes? How do we measure gene expression? What is gene regulation, explain extensively?
- Explain how DNA methylation and the formation of a DNA loop control the expression of the Igf2 gene in mammals. How is this gene imprinted so that only the paternal copy is expressed in offspring?Explain how DNA methylation can regulate gene expression in a tissue-specific way. When and where would de novo methylation occur,and when would demethylation occur? What would occur in the cellsthat give rise to eggs and sperm?Epigenetic marks regulate gene expression. Which epigenetic mark is NOT associated with positive gene expression? A. Histone acetylation B. Histone Methylation C. De-methylated DNA D. Methylated DNA
- What happens when one base pair of DNA is lost from the coding region of a gene because of mutation? First explain how this would affect the mRNA sequence, and second, explain how this would alter the amino acid of the protein that is encoded.At the molecular level, how do you think a gain-of-function mutation in a developmental gene might cause it to be expressed in the wrong place or at the wrong time? Explain what type of DNA sequence would be altered.How regulation of gene expression can alter gene function?