Question: 2. A. In Drosophila Melanogaster The Black Body Allele (b) Is Recessive To The Tan Body Allele (b). This Gene Is Autosomal (what Does That Mean?). Complete The Genetic Model By Showing The Genotypes That Are Possible In Males And Females (Hint: Should The Genotypes Be The Same Or Different Between Males And Females?). B. Show The Expected Results From …

Question: 2. A. In Drosophila Melanogaster The Black Body Allele (b) Is Recessive To The Tan Body Allele (b). This Gene Is Autosomal (what Does That Mean?). Complete The Genetic Model By Showing The Genotypes That Are Possible In Males And Females (Hint: Should The Genotypes Be The Same Or Different Between Males And Females?). B. Show The Expected Results From …

2. a. In Drosophila melanogaster the black body allele (b) is recessive to the tan body allele (b). This gene is autosomal (w please help

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2. a. In Drosophila melanogaster the black body allele (b) is recessive to the tan body allele (b). This gene is autosomal (what does that mean?). Complete the genetic model by showing the genotypes that are possible in males and females (Hint: should the genotypes be the same or different between males and females?). b. Show the expected results from reciprocal crosses of pure breeding black body and pure breeding tan body individuals. You should see that the results of the reciprocal crosses are the same for this autosomal gene. c. A gene affecting wing shape is sex-linked and carried on the X chromosome. The allele for small wing (s) is recessive to the allele for normal wing (s). Show a Genetic Model listing the possible genotypes of females and hemizygous males (see the Note below first) Show the expected results from reciprocal crosses of pure breeding small wing and pure breeding normal wing individuals. Here, you should see that the results of the reciprocal crosses differ. This is characteristic of sex-linked traits. Also note that the recessive phenotype appears in the heterogametic sex of one of the reciprocal crosses. Note: that when representing the genotypes of individuals some geneticists will show the alleles on one of the sex chromosomes. Others (me usually) will show the genotypes as we usually do, but include a symbol for the Y chromosome in hemizygous individuals. The white eye allele in Drosophila is X-linked. A hemizygous white-eye male could be represented as wY or as XºY. A heterozygous female could be represented w w or XW*Xw. You can decide which method you prefer. Just stay consistent.