Q: The Drosophila gene Sex lethal (Sxl) is deserving of itsname. Certain alleles have no effect on XY…
A: Hello! Since you have posted multiple questions, we are answering only first two questions. If you…
Q: Y-linked Inheritance. One trait that is Y-linked is hypertrichosis of the ears. Suppose a man with…
A: Sex linked inheritance is an inheritance pattern in which gene governing a particular trait is…
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A: Suppose, se is the recessive mutated allele and it's wild type dominant form is se+ allele…
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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: 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: 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…
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Q: bw cn st + b. W + n + cn + se С. W bw cn ; st se bw cn st se d. W bw + st se + cn st se +
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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…
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A: Inheritance or heredity refers to the transfer of traits or characters from parents to subsequent…
Q: A maternal effect gene in Drosophila, called torso, is found as afunctional allele (torso+) and a…
A: Maternal effect gene is an effector gene in which the phenotype of an offspring is determined by the…
Q: • Describe what it means that a strain of Drosophila is wild-type for a particular character.…
A: Wild type Strain- it means an individual has a normal phenotype which is generally found in the…
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Q: TOPIC: Variations in Gene Expression In a cross involving polygenic inheritance, three (3) gene…
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Q: Does this statement is a example of a phenocopy? Explain your reasoning. Q. Vestigial wings in…
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Q: EXTRANUCLEAR INHERITANCE In drosophila, a recessive mutation (m-) of a maternal effect gene (MEG)…
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Q: Which sex chromosome (X or Y) carries the gene for eye color in Drosophila? Why?
A: Red eye colour is dominant over white eye colour in drosophila.
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: A Drosophila embryo dies during early embryogenesis due to arecessive maternal effect allele called…
A: The kind of inheritance in which, the characters do not separate according to the laws of Mendel is…
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: Нуpothesis What is your hypothesis to explain the phenotypes (white/red eye trait) observed in your…
A: Sex-linked inheritance is a special type of inheritance that does not follow Mendel’s law of…
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Q: The maternal-effect mutation bicoid (bcd) is recessive. Inthe absence of the bicoid protein product,…
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Q: In a genetic system of complete dominance, a recessive allele is expressed Select one: A.…
A:
Q: Knowing that the Curly leaf (Cy) is a dominant gene on chromosome 6, as it is useful in tracking…
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Q: True or False: Follicle cells on the dorsal side of the Drosophila embryo produce the Backless…
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Q: Suppose that a geneticist discovers a new mutation in Drosophila melanogaster that causes the flies…
A: The mutation quiver, qu, is due to an autosomal recessive gene. The test cross if performed between…
Q: How three-point crosses verify Sturtevant’s map of the Drosophila X chromosome.
A: The earliest cell division and the development of the drosophila flies were studied by Alfred Henry…
Q: How Drosophila Mutations that Affect the Two Sexes Differently?
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Q: A female fruit fly that is heterozygous for the white-eye mutation has red-eyed sons and white-eyed…
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Q: In Drosophila, the two mutations Stubble bristles (Sb) and curledwings (cu) are linked on chromosome…
A: Introduction: Chromosomes are the vehicles of genetic information. Mendelian genetics and gene…
Q: Cinnabar eyes (cn) and reduced bristles (rd) are linked autosomal recesive characters in Drosophila…
A: As given in the question , The given cross is, cn+ cn+ rd+ rd+ (wild type female) X cncnrdrd…
Q: What is the difference between these two. How would the karytotype look like
A: Karyotype is a total collection of the chromosomes of a organism. For suppose the karytope of humans…
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Q: Fruit flies (Drosophila) were mated. Cross #1 - 2 male red eyes (se+), wild wings(ap+) X 4 female…
A: Introduction: Dihybrid cross is referred to as crossing between two individuals who differ only in…
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- Which Position-effect variegation in Drosophila?8.18 Irradiatioh of Drosophila sperm produces transloca- tions between the X chromosome and autosomes, between the Y chromosome and autosomes, and between different autosomes. Translotations between the X and Y chromosomes are not produced. Explain the absence of X-Y translocations. The birth of this child prompted the Dentons' physician to order a chromosome study of parents and child. The results of the study are shown in the accompanying fig- ure. Chromosome banding was done, and all chromo- somes were normal in these individuals, except some copies of number 6 and number 12. The number-6 and number-12 chromosomes of mother, father, and child are shown in the figure (the number 6 chromosomes are the larger pair): Child Mrs. Denton Mr. Denton a. Does either parent have an abnormal karyotype? If so, which parent has it, and what is the nature of the abnormality? b. How did the child's karyotype arise? (What pairing and segregation events took place in the parents?) e. Why is the child…Why is drosophila aconvenient animal for thestudy of linked genes?
- Drosophila melanogaster has which four linkage groups?A Drosophila embryo dies during early embryogenesis due to arecessive allele of a maternal effect gene called bicoid. The wildtypeallele is designated bicoid +. What are the genotypes and phenotypesof the embryo’s mother and maternal grandparents?A new recessive mutant allele doesn’t show pseudodominance with any of the deletions that span Drosophilachromosome 2. What might be the explanation?
- A Drosophila male is heterozygous for a reciprocaltranslocation between an autosome and the Y chromosome. The part of the autosome now present onthe Y chromosome contains the dominant mutationLyra (shortened wings); the other (normal) copyof the same autosome is Lyra+. This male is nowmated with a true-breeding, wild-type female. Whatkinds of progeny would be obtained, and in whatproportions?Recalling the eye pigment pathway in Drosophila, identify the phenotypes of the flies with the following genotypes. (w=white, bw=brown, cn=cinnabar red, st=scarlet red, se=sepia brown)explain Position-effect variegation in Drosophila?
- What would be the most likely effect on development of puncturing the posterior end of a Drosophila egg, allowing a small amount of cytoplasm to leak out, and then injecting that cytoplasm into the anterior end of another egg?You are interested in studying position effect variegation in Drosophila using the chromosome depicted below: Deactivation of the w+ gene gives a white eye phenotype and deactivation of the rst+ gene gives a rough eye phenotype; the normal phenotypes are red and smooth. Because the rst+ and w+ genes have now been placed close to a heterochromatic domain, some sections (or sectors) of the eye display mutant phenotypes due to gene deactivation while others display the normal, wild type phenotype. Which phenotype would you not expect to see rst w Inverted X chromosome white smooth eye sectors white rough eye sectors red smooth eye sectors red rough eye sectorsA Drosophila embryo dies during early embryogenesis due to arecessive maternal effect allele called bicoid−. The wild-type alleleis designated bicoid+. What are the genotypes and phenotypes ofthe embryo’s mother and maternal grandparents?