Drosophila melanogaster (fruit flies) are excellent animals to use for studying Mendel’s laws of inheritance. Two...

Drosophila melanogaster (fruit flies) are excellent animals to use for studying Mendel’s laws of inheritance. Two Mendelian traits that are often used for these experiments are eye colour (encoded for by the ‘W’ gene) and wing shape (encoded for by the ‘Vg’ gene). The ‘W’ allele is dominant, and gives red eyes, while the ‘w’ allele is recessive and gives white eyes. The ‘Vg’ allele is dominant, and gives normal wings, while the ‘vg’ allele is recessive and gives vestigial wings (which are almost absent and have only a small amount of wing tissue). . Starting with a cross between a true breeding red-eyed, vestigial-winged fly (WW vgvg) and a true-breeding white-eyed, normal winged fly (ww VgVg): a. List the genotypes of the F1 flies. b. List the four types of gametes and their proportions (in percent) that these F1s will produce, assuming the two genes are unlinked, and classify them as parental or recombinant. c. List the four types of gametes and their proportions (in percent) if these genes had been on the same chromosome, 20 map units apart. d. Draw a Punnett square representing the cross between the F1 flies, assuming linkage between the Vg and W genes as described in part c. Then list the F2 genotypes and their proportions.

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gladiator answered 1 year ago

A researcher studying the effects of a certain pesticide on fruit flies (Drosophila melanogaster) in the...

A researcher studying the effects of a certain pesticide on fruit flies (Drosophila melanogaster) in the lab found that it binds to the spliceosomes (the enzymes that cut/splice the initial RNA transcripts) and caused the spliceosome to be non-functional. What effect would this have on the gene expression of the fruit flies?

You are studying 2 genes in Drosophila Melanogaster (fruit flies), Gene A and Gene B. Gene...

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Dihybrid crosses of (virtual) fruit flies (Drosophila melanogaster) were carried out at the computer lab at...

Dihybrid crosses of (virtual) fruit flies (Drosophila melanogaster) were carried out at the computer lab at this course. The mutant alleles studied were “vestigial wing” (vg) and “ebony body” (eb). The mutant P‐generation flies were homozygous recessive at both studied loci. The wild type alleles were homozygous dominant at both loci. The loci for vestigial wing and ebony body are located at separate chromosomes. Show the Punnett crosses from the P‐generation to the F1‐generation of mutant and wild type flies,...

Use the preamble below to answer Questions 27 and 28 In the fruit fly Drosophila melanogaster,...

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I need a paragraph regarding Thomas hunt and his discover with the fruit fly drosophila melanogaster...

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