In Some Genetically Engineered Corn Plants,a Dominant Gene (BT)produces a Protein

question 124

Multiple Choice

In some genetically engineered corn plants,a dominant gene (BT) produces a protein that is lethal to certain flying insect pests that eat the corn plants.It was also found that the pollen could cause death in some flying insects.If the corn plant is heterozygous for BT,what proportion of the pollen would carry the dominant gene?

• A) all pollen
• B) 1/2
• C) 1/3
• D) 1/4
• E) 1/8

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Definitions:

Regenerated

describes something that has been restored or replenished, often relating to natural processes or materials that have been recycled or renewed.

Phagocytosis

The process by which cells engulf and digest foreign particles or microorganisms, an essential part of the immune system.

Pinocytosis

The process whereby a cell engulfs large amounts of liquid.

Active Transport

The movement of molecules across a cell membrane from a region of lower concentration to one of higher concentration, requiring energy.