Genetically Linked Disorders That Are Severely Handicapping or Lethal Are

question 84

Multiple Choice

Genetically linked disorders that are severely handicapping or lethal are typically,but not always,transmitted by which gene pattern?

• A) recessive
• B) dominant
• C) codominant
• D) polygenic

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Definitions:

Stomata

Pores on plant leaves and stems that allow gas exchange between the plant and the atmosphere.

Osmotic Pressure

The pressure that must be applied to a solution to prevent the inward flow of water across a semipermeable membrane, related to the concentration of solutes.

Guard Cells

Specialized cell pairs that flank stomatal pores on plant leaves, regulating the opening and closing of the pores to control gas exchange and water loss.

Casparian Strip

A band of cell wall material found in plant roots that is impervious to water and solutes, ensuring that all materials pass through a cell membrane before entering the plant.