Using Genetic Engineering Techniques, You Remove the Sequences That Code

question 10

Multiple Choice

Using genetic engineering techniques, you remove the sequences that code for the ribosome-binding sequences of the bacterial LacZ gene.The removal of these sequences will lead to

• A)more LacZ protein being produced due to faster ribosome movement across the LacZ mRNA.
• B)transcriptional repression, resulting in fewer mRNA molecules being produced from this gene.
• C)a longer half-life for the LacZ mRNA.
• D)translational inhibition of the LacZ mRNA.

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Definitions:

Endodermis

A layer of cells in the roots of land plants that acts as a selective barrier, regulating the passage of substances from the soil into the vascular system.

Xylem

The vascular tissue in plants responsible for transporting water and nutrients from the roots to the rest of the plant.

Root Epidermis

The outermost layer of cells in the root of a plant, which absorbs water and nutrients from the soil.

Monocot Roots

The type of roots found in monocotyledonous plants, characterized by a fibrous root system that helps in efficient absorption of water and nutrients.