Indicate true (T) and false (F) statements below regarding Hox genes. Your answer would be a four-letter string composed of letters T and F only, e.g. TTTF.
( ) The order of expression of Hox genes along the body corresponds to their order in the Hox complex.
( ) Generally, the more anterior of the Hox genes dominate (or suppress) posterior Hox genes.
( ) When a posterior Hox gene is artificially expressed in an anterior region of the embryo, the tissue maintains its anterior character.
( ) Hox genes control the A-P axis in both vertebrates and invertebrates.

Question

Indicate true (T) and false (F) statements below regarding Hox genes. Your answer would be a four-letter string composed of letters T and F only, e.g. TTTF.
( )	The order of expression of Hox genes along the body corresponds to their order in the Hox complex.
( )	Generally, the more anterior of the Hox genes dominate (or suppress) posterior Hox genes.
( )	When a posterior Hox gene is artificially expressed in an anterior region of the embryo, the tissue maintains its anterior character.
( )	Hox genes control the A-P axis in both vertebrates and invertebrates.

Quizplus · Accepted Answer

The genomic location of Hox genes (which control the anteroposterior [A-P] axis in both vertebrates and invertebrates) corresponds well with their order of expression along the A-P axis. In other words, Hox genes are expressed according to their order in the Hox complex. Generally, the more posterior of the Hox genes dominate the more anterior ones, so that when both are expressed in a given segment, the segment will assume an identity dictated by the more posterior Hox genes.

Indicate True (T) and False (F) Statements Below Regarding Hox