Q: Why are chromosomal aberrations considered to have less significance than gene mutations for…
A: Chromosomal aberration refers to the alterations in a number of chromosomes such as loss or gain of…
Q: What would be the most likely effect of inhibiting the translation of hunchback mRNA throughout a…
A: A gene is the basic functional, and physical unit of heredity and it is small sections of DNA that…
Q: . Why is Drosophila used extensively for genetic studies?
A: The characteristics which made an organisms particularly good mondel for genetic experimentation are…
Q: Draw a basket mutant embryo. What does basket encode? Why do the mutant embryos have this phenotype?
A: A mutation is a change in the DNA sequence of an organism. Mutations can result from mistakes in DNA…
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: How Does Heavily Used Gene Products Are Encoded by Multiple Copies of Genes?
A: Genes are sets of nucleotides that codes for a particular protein. The genes have to be expressed…
Q: Red–green color blindness in humans is due to an X-linked recessive gene. A woman whose father is…
A: Red-green color blindness is an inherited X-linked recessive pattern. If a female has 1 copy of…
Q: Most mutations in a diploid organism are recessive. Why?
A: To describe: Why most mutations in a diploid organism are recessive.
Q: Define Drosophila,
A: Drosophila melanogaster is the species of Drosophila which is an inconspicuous, common fly found…
Q: A Drosophila male is heterozygous for a reciprocaltranslocation between an autosome and the Y…
A: Chromosomal translocation is the abnormal condition of chromosomes with unusual rearrangement. It…
Q: Why do gene mutations not result in chromosomal mutations?
A: Answer: Introduction: Mutation- These are the random heritable changes that occurs in the DNA…
Q: Why is it that mutations in bicoid and nanos exhibit genetic maternaleffect in Drosophi, but…
A: Bicoid and Nanos are responsible for regulating the expression of genes that are responsible for…
Q: Which of the following are associated with dynamic mutations? O Genomic imprinting O Trinucleotide…
A: First of all we will discuss that, what is dynamic mutation and its causes. Dynamic mutation is the…
Q: Engrailed, even-skipped, hunchback, and Antennapedia.To a Drosophila geneticist, what are they? How…
A: Drosophila represents the genus that includes flies that belong to the Drosophilidae family. The…
Q: Prior to the work described here, what was the original purpose ofMorgan’s experiments with…
A: Chromosome theory of inheritance states that genes are found at specific locations on chromosomes…
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: 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: You cause a mutation in the bicoid gene in a Drosophila embryo. What effect will this have on this…
A: The members of Drosophila are called "fruit flies." Drosophila embryogenesis is the process by which…
Q: How does adding a methyl or acetyl group to a histone protein alter gene activity?
A: Histones are proteins, found in eukaryotic nuclei that order DNA into a shape. The histone molecules…
Q: Are queen and worker bees genetically different from each other?
A: Genetically different refers to the difference in the composition of the genetic material of the…
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: 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…
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 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: How are the genes on the X chromosome regulated?
A: Males have just one copy of the X chromosome, whereas females have two copies. There is evolutionary…
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: How the epigenetic states are transmitted via mitosis and meiosis ?
A: Epigenetics is the study of how people's activities and the environment can influence how genes…
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: Where are there over 250 species of fruit flies (Drosophila)?
A: Drosophilidae, which members are often referred to as "small fruit flies”. Drosophila melanogaster…
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: How is lozenge eye in drosophila an example of pseudoallelism?
A: Pseudoalleles are formed by duplication of a gene which further evolved to develop new functions.…
Q: Why did the mouse Pax6 gene produce fruit fly eyes instead of mouse eyes?
A: Drosophila melanogaster (fruit fly) has eyes that are abnormally big and typically brightly colored.…
Q: why some genes assort independently?
A: Genetics is a branch of biology that deals with genes, heredity, and variation. Heredity purely…
Q: Is polyploidy a mutation?
A: Polyploidy may be defined as the addition of multiple sets of chromosomes inside an organism which…
Q: How are mutations in histone acetylation (HAT) genes linked to cancer?
A: HATs or histone acetyltransferase are enzymes that acetylate the lysine amino acid on histone…
Q: Why are some genes expressed and some not?
A: Gene expression is dependent on many factors Genotype of the individual Environmental Status Gene…
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: how does deletion of chromosome 15 affects our body
A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…
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: What evidence suggests that differences in monozygotic twins may be caused by epigenetic effects?
A: The Identical twins are also known as monozygotic twins, which occurs due to the result of…
Q: What is mutation? Distinguish between neutral and silent mutations; germ-line and utations; trisomy…
A: Since there are multiple questions in this particular question, I will answer the first three…
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…
Q: Why does the sex chromosome X carry the gene for eye color in Drosophila?
A: The mode of inheritance is a pattern of obtaining parentral alleles or genes to the offsprings. The…
Q: To play Jeopardy, the answer is given. You must supply the questie best question for the following…
A: While mendelian genetics helps us understand the inheritance of normal genes there are certain…
Q: What is mutation? Distinguish between (i) neutral and silent mutation (ii) germ line and somatic…
A: Mutations can sometimes be beneficial, when they result in traits that will benefit the organism.…
How Drosophila Mutations that Affect the Two Sexes Differently?
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- How is it that asymmetric cell division influences gene regulation? What are the factors that determine phenotype? and how the phenotypic expression goes beyond simple Mendelian models.In Drosophila subobscura, the presence of a recessive gene called grandchildless (gs) causes the offspring of homozygous females, but not those of homozygous males, to be sterile. Can you offer an explanation as to why females and not males are affected by the mutant gene?Which Position-effect variegation in Drosophila?
- Why is it that mutations in bicoid and nanos exhibit genetic maternal effect in Drosophila (a mutation in the maternal parent produces a phenotype that shows up in the offspring), but mutations in runt and gooseberry do not?How do translocations such as the Philadelphia chromosome contribute to cancer?Explain the Retrotransposons—the Copia –White-Apricot System in Drosophila ?
- Theodor Boveri predicted that malignancies would often be associated with chromosomal mutation. What lines of evidence substantiate this prediction?Which sex chromosome (X or Y) carries the gene for eye color in Drosophila? Why?The locations of six deletions have been mapped to a Drosophila chromosome, as shown in the following deletion map. Recessive mutations a, b, c, d, e, and f are known to be located in the same region as the deletions, but the order of the mutations on the chromosome is not known.