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The HOX Genes in the acoelomorph Includes only one family of HOX genes are not present because they have not yet become part of the bilaterian genome at the time of the LCA include all the HOX families found in other bilateria, but not with as many variants have been lost since from the ancestral bilaterian

The HOX Genes in the acoelomorph Includes only one family of HOX genes are not present because they have not yet become part of the bilaterian genome at the time of the LCA include all the HOX families found in other bilateria, but not with as many variants have been lost since from the ancestral bilaterian

Biology Today and Tomorrow without Physiology (MindTap Course List)
Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Christine Evers, Lisa Starr
Chapter11: Evidence Of Evolution
Section: Chapter Questions
Problem 1CT
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The HOX Genes in the acoelomorph Includes only one family of HOX genes are not present because they have not yet become part of the bilaterian genome at the time of the LCA include all the HOX families found in other bilateria, but not with as many variants have been lost since from the ancestral bilaterian We currently suspect that the last common ancestor of the bilateria was like an anthozoan polyp similar to a ctenophore O segmented /metameric O similar to a planula larva The embryos of the Xenoacoelomorpha display O indeterminate cleavage duet spiral cleavage O tetrad spiral cleavage determinate cleavage
Transcribed Image Text:The HOX Genes in the acoelomorph Includes only one family of HOX genes are not present because they have not yet become part of the bilaterian genome at the time of the LCA include all the HOX families found in other bilateria, but not with as many variants have been lost since from the ancestral bilaterian We currently suspect that the last common ancestor of the bilateria was like an anthozoan polyp similar to a ctenophore O segmented /metameric O similar to a planula larva The embryos of the Xenoacoelomorpha display O indeterminate cleavage duet spiral cleavage O tetrad spiral cleavage determinate cleavage
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