Color and texture of corn grains. Use the ear of genetic corn represented. Purple? Light and dark! Yellow? Light (i.e. golden) and dark. Texture? Wrinkled and smooth. 67 67 00000 ©W.P. Armstrong 2001 Color of Corn Grains (Count what you see!) Number of Purple Grains I Number of Yellow Grains (5 Ratio of Purple Grains : Yellow Grains (It should be calculated by dividing each number from your counts by the lowest number of those counts. The result should be written as : 1) Probable Genotypes of Parents (letters!) Use upper-case P and lower-case p. Texture of Corn Grains (Count what you see!) Number of Smooth Grains Number of Wrinkled Grains Ratio of Smooth Grains : Wrinkled Grains (It should be calculated by dividing each number from your counts by the lowest number of those counts. The result should be written as : 1) Probable Genotypes of Parents (letters!) Use upper-case S and lower-case s. Grain color is one trait. Grain texture is a second trait. For each, what do you notice about the phenotypic ratios?

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter4: Pedigree Analysis In Human Genetics
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Problem 27QP: Variations in Phenotype Expression A genetic disorder characterized by falling asleep in genetics...
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Color and texture of corn grains. Use the ear of genetic corn represented.
Purple? Light and dark! Yellow? Light (i.e. golden) and dark.
Texture? Wrinkled and smooth.
67
©W.P. Armstrong 2001
Color of Corn Grains (Count what you see!)
Number of Purple Grains I
Number of Yellow Grains (5
Ratio of Purple Grains : Yellow Grains
(It should be calculated by dividing each number from
your counts by the lowest number of those counts. The result should be written as
: 1)
Probable Genotypes of Parents
(letters!) Use upper-case P and lower-case p.
Texture of Corn Grains (Count what you see!)
Number of Smooth Grains
Number of Wrinkled Grains
Ratio of Smooth Grains : Wrinkled Grains
(It should be calculated by dividing each number
from your counts by the lowest number of those counts. The result should be written as : 1)
Probable Genotypes of Parents
(letters!) Use upper-case S and lower-case s.
X
Grain color is one trait. Grain texture is a second trait. For each, what do you notice about the
phenotypic ratios?
P = Purple; p = Yellow; S = Smooth; s = Wrinkled
A genetic cross involving heterozygotes with only one trait is a monohybrid cross.
A genetic cross involving heterozygotes with two traits is called a dihybrid cross.
Consider the cross PPSS x ppss (Parental Generation). The F1 generation is the result of the cross.
Gametes: PS for one parent (e.g. the egg) and ps for another parent (e.g. the sperm).
2| Page
Transcribed Image Text:Color and texture of corn grains. Use the ear of genetic corn represented. Purple? Light and dark! Yellow? Light (i.e. golden) and dark. Texture? Wrinkled and smooth. 67 ©W.P. Armstrong 2001 Color of Corn Grains (Count what you see!) Number of Purple Grains I Number of Yellow Grains (5 Ratio of Purple Grains : Yellow Grains (It should be calculated by dividing each number from your counts by the lowest number of those counts. The result should be written as : 1) Probable Genotypes of Parents (letters!) Use upper-case P and lower-case p. Texture of Corn Grains (Count what you see!) Number of Smooth Grains Number of Wrinkled Grains Ratio of Smooth Grains : Wrinkled Grains (It should be calculated by dividing each number from your counts by the lowest number of those counts. The result should be written as : 1) Probable Genotypes of Parents (letters!) Use upper-case S and lower-case s. X Grain color is one trait. Grain texture is a second trait. For each, what do you notice about the phenotypic ratios? P = Purple; p = Yellow; S = Smooth; s = Wrinkled A genetic cross involving heterozygotes with only one trait is a monohybrid cross. A genetic cross involving heterozygotes with two traits is called a dihybrid cross. Consider the cross PPSS x ppss (Parental Generation). The F1 generation is the result of the cross. Gametes: PS for one parent (e.g. the egg) and ps for another parent (e.g. the sperm). 2| Page
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