A snapdragon with pink petals, black anthers, and longstems was allowed to self-fertilize. From the resultingseeds, 650 adult plants were obtained. The phenotypesof these offspring are listed here.78 red long tan26 red short tan44 red long black15 red short black39 pink long tan13 pink short tan204 pink long black68 pink short black5 white long tan2 white short tan117 white long black39 white short blacka. Using P for one allele and p for the other, indicatehow flower color is inherited.b. What numbers of red : pink : white would havebeen expected among these 650 plants?c. How are anther color and stem length inherited?d. What was the genotype of the original plant?e. Do any of the three genes show independentassortment?f. For any genes that are linked, indicate the arrangements of the alleles on the homologous chromosomes in the original snapdragon, and estimate thedistance between the genes
A snapdragon with pink petals, black anthers, and long
stems was allowed to self-fertilize. From the resulting
seeds, 650 adult plants were obtained. The phenotypes
of these offspring are listed here.
78 red long tan
26 red short tan
44 red long black
15 red short black
39 pink long tan
13 pink short tan
204 pink long black
68 pink short black
5 white long tan
2 white short tan
117 white long black
39 white short black
a. Using P for one allele and p for the other, indicate
how flower color is inherited.
b. What numbers of red : pink : white would have
been expected among these 650 plants?
c. How are anther color and stem length inherited?
d. What was the genotype of the original plant?
e. Do any of the three genes show independent
assortment?
f. For any genes that are linked, indicate the arrangements of the alleles on the homologous chromosomes in the original snapdragon, and estimate the
distance between the genes
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