Quantitative Trait Qualitative trait Quantitative trait: genetic traits which are measurable characteristics
Quantitative Trait Qualitative trait Quantitative trait: genetic traits which are measurable characteristics
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Quantitative Trait
Quantitative Trait Qualitative trait Quantitative trait 80 Gaussian distribution 60 the bell-shaped curve 50 40 s30 20 10 130140150160170180190200 Height(cm)
130 140 150 160 170 180 190 200 Height (cm) 80 70 60 50 40 30 20 10 Variability Gaussian distribution the bell-shaped curve Quantitative Trait Qualitative trait Quantitative trait
Quantitative Trait P the tallest the shortest AABB × AABB the median AaBB AB AB′ A'B AB′ AB AABB aaBB AA'BBAA'BB AB′ AABB′AABB′AABB′AABB AB AA'BBAA'BE′ A'A'BB AABB A B AABB′AABB′AABB′AABB
P the tallest the shortest AABB A’A’B’B’ F1 the median AA’BB’ F2 AB AB’ A’B A’B’ AB AABB AABB’ AA’BB AA’BB’ AB’ AABB’ AAB’B’ AA’BB’ AA’B’B’ A’B AA’BB AA’BB’ A’A’BB A’A’BB’ A’B’ AA’BB’ AA’B’B’ A’A’BB’ A’A’B’B’ Quantitative Trait
Quantitative Trait AABB AABB AA'BB AABB AABB AA'B'B AABB AABB AAB′B
AABB AAB’B’ A’A’BB A’A’B’B’ AABB’ A’A’BB’ AA’BB AA’B’B’ AA’BB’ Quantitative Trait