Homeotic Genes Contain a Homeobox Sequence That Is Highly Conserved

question 23

Multiple Choice

Homeotic genes contain a homeobox sequence that is highly conserved among very diverse species.The homeobox encodes a protein domain that binds to DNA to regulate development of the embryo.The selective expression of homeotic genes,over time and space,is central to pattern formation during development.Based on this information,which of the following statements would you expect to be correct?

• A)Homeotic genes are selectively expressed over space and time during development.
• B)A homeobox-containing gene has to be a developmental regulator.
• C)Homeoboxes cannot be expressed in nonhomeotic genes.
• D)All organisms must have homeotic genes.

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Definitions:

Monetary Policy

Monetary policy involves the management of a nation's money supply and interest rates by its central bank to control inflation, stabilize currency, and achieve economic growth.

Price Level

The average of current prices across the entire spectrum of goods and services produced in the economy, often compared over time to assess inflation.

Recessionary Monetary Policy

Monetary policy aimed at combating recession, typically involving reducing interest rates to stimulate economic growth.

Price Level

The encompassing average of prices for goods and services across the economy.