6. Assume height in a particular plant to be determined by 2 pairs of unlinked polygenes, each effective allele contributing 5 cm. to a base height of 5 cm. The cross AABB x aabb is made Solution What are the heights of each parent? What height is to be expected in the F1 if there are no environmental effects? What is the expected phenotypic ratio in the F2? If each pair of alleles exhibited complete dominance instead of an additive effect, what would be Ithe answers in letters a to c?

Human Anatomy & Physiology (11th Edition)
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6. Assume height in a particular plant to be determined by 2 pairs of unlinked polygenes, each effective allele contributing 5 cm. to a base height of 5 cm. The cross AABB x aabb is made.
Solution
What are the heights of each parent?
What height is to be expected in the F1 if there are no environmental effects?
What is the expected phenotypic ratio in the F2?
If each pair of alleles exhibited complete dominance instead of an additive effect, what would be
the answers in letters a to c?
Transcribed Image Text:6. Assume height in a particular plant to be determined by 2 pairs of unlinked polygenes, each effective allele contributing 5 cm. to a base height of 5 cm. The cross AABB x aabb is made. Solution What are the heights of each parent? What height is to be expected in the F1 if there are no environmental effects? What is the expected phenotypic ratio in the F2? If each pair of alleles exhibited complete dominance instead of an additive effect, what would be the answers in letters a to c?
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