Can you help with 2c? 2. In a certain rose variety, thorny stems ( t) are recessive tosmooth stems (T) and having white flowers () is recessive tohaving red flowers (R). The genes for stem thorns and flowercolor are located on the same chromosome. A rose homozygousfor thorny stems and red flowers is crossed with a planthomozygous for smooth stems and white flowers. The F1 progenyare then crossed with plants that have thorny stems and whiteflowers (a testcross) to produce F2 progeny.The F2 progeny of this testcross are:thorny stems, red flowersthorny stems, white flowerssmooth stems, red flowerssmooth stems, white flowers25628312492a. What phenotypic proportions would be expected if the genes for thorny stems and flowercolor were located on different chromosomes?2b. What is the percent recombination between the genes for thorny stems and flower color?2c. Is the F1 heterozygote in coupling or repulsion?

To determine whether the heterozygote is in coupling or repulsion, just look at the parental…

2. In a certain rose variety, thorny stems ( t) are recessive to smooth stems (T) and having white flowers () is recessive to having red flowers (R). The genes for stem thorns and flower color are located on the same chromosome. A rose homozygous for thorny stems and red flowers is crossed with a plant homozygous for smooth stems and white flowers. The F1 progeny are then crossed with plants that have thorny stems and white flowers (a testcross) to produce F2 progeny.

2. In a certain rose variety, thorny stems ( t) are recessive to smooth stems (T) and having white flowers () is recessive to having red flowers (R). The genes for stem thorns and flower color are located on the same chromosome. A rose homozygous for thorny stems and red flowers is crossed with a plant homozygous for smooth stems and white flowers. The F1 progeny are then crossed with plants that have thorny stems and white flowers (a testcross) to produce F2 progeny.

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 6TYK

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