Which Phenomenon Tends to Decrease the Number of Phenotypic Classes

question 224

Multiple Choice

Which phenomenon tends to decrease the number of phenotypic classes in dihybrid crosses?

• A) Incomplete dominance
• B) Epistasis
• C) Multiple alleles
• D) Codominance
• E) Pleiotropy

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Definitions:

Clutch Brake

A component used to momentarily stop or slow the rotation of the transmission input shaft for easier gear engagement when the vehicle is stationary.

Release Bearing

A bearing that disables the transmission from the engine, commonly used in the operation of a vehicle's clutch system.

Clutch Cover

Part of the clutch assembly that encloses the clutch disc, pressure plate, and springs, protecting them and helping to engage or disengage the drive.

Creep Feature

A function in some automatic transmissions allowing the vehicle to move slowly forward or backward without pressing the gas pedal.