If a single crossover takes place in the inverted region an unusual structure results

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#Id: 6833

#Unit 8. Inheritance Biology

Threshold characteristics display only two possible phenotypes—the trait is either present or absent.

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#Id: 8606

#Unit 2. Cellular Organization

M phase Cyclin–CDKs

In human - cyclin A-CDK 1

cyclin B-CDK 1

In budding yeast - CIb 1/2/3/4-Cdc 28

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#Unit 2. Cellular Organization

A functional gene can be located through the use of an expressed sequence tag (EST)

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#Id: 6657

#Unit 3. Fundamental Processes

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#Id: 6508

#Unit 7. System Physiology – Animal

Tetrahydrobiopterin (BH4) is a cofactor for tyrosine hydroxylase and phenylalanine hydroxylase