Part 1In potatoes, skin colour is determined by the interaction of the P and Y loci, each of which has two alleles. A dominant P allele togetherwith a dominant Y allele (P_Y_) result in a brown skin, while a potato homozygous recessive at both loci has a green skin. All othergenotypes produce a yellow skin colour.a) What is the genetic relationship between the two alleles at the P locus, and between the two loci that influence skin colour?b) You cross a PPYY plant is crossed with a PpYy plant. The cross produces 32 potatoes. How many of these would you expect to have ayellow skin?Part 2A male Drosophila with only seven chromosomes was discovered. The normal 2n number is eight. Close examination showed that onecopy of the smallest chromosome (IV) had translocated to the end of one copy of chromosome II and was missing its centromere. Thismale is homozygous for normal eyes and is mated to a 2n = 8 female who isthomozygous for the chromosome IV recessive mutationeyeless. Among the offspring are eyeless flies. Explain how this is possible.

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Description: Part 1In potatoes, skin colour is determined by the interaction of the P and Y loci, each of which has two alleles. A dominant P allele togetherwith a dominant Y allele (P_Y_) result in a brown skin, while a potato homozygous recessive at both loci

An allele is a variant form of a gene, each gene resides at a specific locus (location on a…

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In notatoes., skin colour is determined by the interaction of the P and Y loci, each of which has two alleles.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter12: Mendel, Genes, And Inheritance

Section: Chapter Questions

Problem 9TYK: The ability of humans to taste the bitter chemical phenylthiocarbamide (PTC) is a genetic trait....

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