evolution of body segmentation

Question 1

what are hox sequences

Answer 1

a regulatory DNA sequence region, mutations in a hox may change large scale anatomical features of the full-grown organism

Question 2

what are hox genes

Answer 2

Homeobox genes encode homeodomain protein products that are transcription factors sharing a characteristic protein fold structure that binds DNA to regulate expression of target genes

Question 3

how are hox genes organised and expressed

Answer 3

Hox genes are expressed in a gradient and are activated in the same order as they are organized in the genome

Question 4

what do hox gene duplications do

Answer 4

Gene duplication releases copies to adopt new functions developing new structures and shaping different bodies

Question 5

what type of factor are hox genes

Answer 5

transcription factors that regulate the expression of genes that regulates the transcription from DNA to RNA