EC4. In a test-cross of trihybrid drosophila the following phenotypes and number of offspring were found. Without doing any calculations, answer the following questions: +++ 669 abc 653 ++c 121 ab+ 139 +b+ 2280 a+c 2215 +bc 3 a++ 2 a) What were the genotypes of the parental strains? (fill in) b). What is the gene order?

Q: Let’s suppose that a species of mosquito has two different types ofsimple transposons that we will…

A: Sequence of DNA, changes the position in the genome, at times, it reverses or creates mutation,…

Q: Illustrate: 1 Chromosomes in the cells of Allium cepa 2. Chromosomes in the salivary gland of…

A: Allium cepa commonly called onions contains 16 large chromosomes. These chromosomes can be stained…

Q: 1. In humans, curly hair is dominant to straight hair. A woman heterozygous for curly hair marries a…

A: Answer:  Dominant trait = this is the expressing trait which can be express when single or double…

Q: Multiple crosses were made between true-breeding lines of black and yellow Labrador retrievers. All…

A: Black ×Yellow →All Yellow (F1) F1×F2→121 Yellow +9 Black +30  Chocolate Total offspring in F2…

Q: The wild-type (normal) fruit fly, Drosophila melanogaster, has straight wings and long bristles.…

A: Wild type fruit fly Drosophila melanogaster posses straight wings and a long bristles. The mutant…

Q: A series of hybrid cell lines was created by somatic human-mouse somatic cell hybridization. Each…

A: Somatic cells of different species are hybridized. Helps to find that particular gene  which is…

Q: ive one domain.motif found in the SRY portion and state clearly how it leads to the development of…

A: Since you have asked multiple questions , we will solve the first question for you. If you want any…

Q: EC1. In drosophila the cw (curly wings) gene and eb (ebony body) genes are found on the same…

A: Hi! Thanks for your question. As you have posted multiple questions and have not mentioned which one…

Q: Cinnabar eyes (cn) and reduced bristles (rd) are linked autosomal recesive characters in Drosophila…

A: According to the question, The given cross is, cn+cn+rd+rd+ (wild type female) X   cncnrdrd (reduced…

Q: 64. In Drosophila normal wings are dominant to curly wings. Heterozygotes have normal wings.  Pure…

A: (Note: According to guidelines, we are supposed to answer only one question. Please repost other…

Q: In an electrophoretic gel across which is applied a powerful electrical alternating pulsed field,…

A: SDS-PAGE (Sodium Dodecyl Sulphate-Polyacrylamide Gel Electrophoresis) is a quantitative method to…

Q: 2, Two unlinked loci effect mouse hair color. CC or Cc mice are agouti. Mice with genotype cc are…

A: Epistasis is the phenomenon in which the effect of one gene is dependent on the presence or absence…

Q: Нурothesis What is your hypothesis to explain the phenotypes (white/red eye trait) observed in your…

A: Genetic linkage suggests that the two genes on a chromosome that are near to one another are…

Q: 1.  Using the diagram below, fill in the following Table to give the names of the genes that are…

A: Genetic recombination occur during meiosis in prophase during the pachytene and thus formation of…

Q: About 2000 G bands are visible in a high-resolutionkaryotype of the 3 billion base pairs in the…

A: Karyotype analysis or chromosome analysis is a test used to evaluate the number and structure of a…

Q: Which of the following depicts an epigenetic change? 1. Green, variegated, and albino Agave plants…

A: Epigenetic means the trait which is not inherited but is controlled by surrounding factors. It…

Q: In Drosophila, assume that the gene for scute bristles (s) is located at map position 0.0 and that…

A: Introduction The term "phenotype" refers to an organism's observable physical properties, such as…

Q: Given the karyotype shown here, is this a male or a female? What would the genotype/phenotype of…

A: Karyotyping is the method of pairing and ordering all of an organism's chromosomes, resulting in a…

Q: Tetrad analysis in Neurospora is described in Tool Box 6.1. In Neurospora, ser-6 is locate d to the…

A: Crossing over occurs during prophase I and involves the exchange of genetic material between…

Q: 11. Mary Alexander studied the effects of radiation on mutation rates in sperm of Drosophila. She…

A: Given  Radiation amount = 3000r  and 3975r  Number of offsprings  Control = 45,504, mutated = 2…

Q: A cross between the F1 individual in Figure 21.6 and a plant with genotype B-I B-I will produce…

A: Epigenetics is the heritable changes in gene expression that do not involve the changes in DNA…

Q: What is the processes of mitosis and meiosis indicating where the similarities lie and in which…

A: Hello, thank you for your questions, according to our policy I am answering only the first question.

Q: The wild-type (normal) fruit fly, Drosophila melanogaster, has straight wings and long bristles.…

A: Drosophila melanogaster is a fruit fly, it has a short structure, and thus, they are easy to handle.…

Q: 32. Some sweet-pea plants have purple flowers and others have white flowers. A homozygous variety of…

A: In genetics, Epistasis is a mechanism in which the influence of a gene mutation is reliant on the…

Q: In most animals, a larger amount of cytoplasm is carried by the egg than by the sperm. Similarly,…

A: The genetic information of a cell is confined to nuclear DNA (deoxyribonucleic acid) and cytoplasmic…

Q: Domesticated sheep cells have a total of 54 chromosomes (versus 46 chromosomes in human cells). (a)…

A: Chromosomes are the structures that carry DNA.

Q: In a plant, green is dominant over white leaf; long is dominant over round shape. a. How many total…

A: According to our guideline we can answer only the first question (upto first three subparts). The…

Q: Recessive epistasis: In a cross between fruit flies that are both double heterozygous for modifier…

A: Mendel's studies in peanut plants suggested that the amount of personal phenotype was controlled by…

Q: In Meselson and Radding modified Holliday model, following branch migration, what are the possible…

A: Meselson-Radding Model This is a model of genetic recombination. This model was formed to explain…

Q: 5. a. About how many molecules of histone H2A wouldbe required in a typical human cell just after…

A: The cell cycle is also referred to as the cell division cycle. This cycle refers to a series of…

Q: Saccharomyces cerevisiae is a ____Budding yeast have two mating types: _______.-cells. The…

A: Answer: Note- Please upload other questions separately.  Introduction: Reproduction is the…

Q: Colchicine is a chemical mutagen that inhibits the spindle formation and prevents anaphase, which…

A: Introduction  Cell cycle have different phase which is broadly divided into two Interphase and M…

Q: 6. A research group has selected three independent Trp−haploid strains of Neurospora, each of which…

A: Hello there! As you have posted multiple questions, we are answering only the first two questions…

Q: ? ? 1.What are the genotypes of II-3 and II-5? Explain your reasoning using complete sentenc

A: X-linked receives inheritance consist of affect genes such as XdXd and XdY and the unaffected…

Q: Gene mapping using the Three-point Testcross a) Given the following alleles that control seed…

A: In the problems given like the given question, we should first determine the parental genotypes and…

Q: Please explain how I can solve this. Thank you You wanted to draw a linkage map for three genes in…

A: Genetic Linkage -- Introduction --If the genes on chromosome showing linkage is present and trait…

Q: Inversions are known to affect crossing-over. The following homologs have the indicated order (the…

A: Thank you for the question.  Answer : inversion is when there is disruption of a single chromosome (…

Q: The mutations called bobbed in Drosophila result from variable reductions (deletions) in the number…

A: Mutations known as bobbed results from varied deletions in the number of amplified rRNA coding…

Q: In the example shown , what is the underlying cause of nonallelichomologous recombination?

A: Chromosomes are found in the nucleus of living cells that is made up of protein and deoxyribonucleic…

Q: 1. In Drosophila melanogaster (fruit fly) experiment, if we are going to cross male and female…

A: There are 2 categories of chromosomes: sex chromosomes and autosomes. The rules of inheritance with…

Q: Complementation tests of distinct recessive mutants, 1 through 8, produce the data in the matrix…

A: Complementation occurs when two strains of a organism with different homozygous recessive mutations…

Q: The flower color of genetically identical hemp plants (clones) is purple when the flowers develop…

A: The term Mendelian inheritance is associated with the inheritance processes that are exclusive to…

Q: 4. Suppose you are studying gene X in yeast using four different strains. Strain 1 is haploid and…

A: Introduction Yeasts Are Single-celled Eukaryotic Microorganisms. A Small Fungus Made Up Of Single…

Q: Explain the following

A: Gametogenesis is the method leading to the formation of the female and male germs cells. The…

Q: 5. In German Shepherd dogs, hair length and hip dyslpasia are determined by two different genes…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: 1. In a plant species, flower-colour is determined by the biochemical pathway shown below: E A B C…

A:

Q: Wild-type fungus, protein E (encoded by the haplosufficient gene E) normally dimerizes to catalyzes…

A: Each organism's DNA sequence is unique. Its base-pair sequence might vary from time to time. It is…

Q: a mutant screen in Drosophila, you identified a gene related to memory, as evidenced by the…

A: Recombination is a crucial term in biology. It is necessary for the creation of gene variants. The…

Q: In a DNA study, from a patient with mental retardation, the FMR1 gene is located, which causes many…

A: Mutations are sudden heritable changes in the nucleotide sequence that alters the amino acid and…