Which of the following are documented effects of Hox genes? Choose all that apply.  Group of answer choices 1-Hox genes determine where body parts like legs will form   2-Hox genes determine lactase persistence in humans   3-Hox genes determine the general orientation of the body, where is the head end and where is the back end.   4-Hox genes determine how many vertebrae a vertebrate animal will have

Examine the figure attached. Provide one idea of how gene evolution of major body patterning genes (hox genes) has influenced functional anatomy of vertebrates. Provide one place in evolutionary history (see diagram) from a group or clade to illustrate the idea.

8. Which of the following is not unique to animals? A) The structural protein collagen B) Nervous conduction and muscular movement C) Regulatory genes called Hox genes D) Sexual reproduction

1.Based upon the mutation that your dinosaur has, are there any environmental changes in which the non-mutants would be better adapted than the mutants? If so, which? 2.Based upon the mutation that your dinosaurs have, are there any environmental changes in which the mutants would be better adapted than the non-mutants? If so, which?   Dinosaur type: Celophysis Mutation: Modification of tooth structure, causing increased specialization in diet.

How is it that a mutation in the Ptx1 can allow it to stop being active in the pelvic area, but not in the other tissues of stickleback fish? Group of answer choices A- The mutation is in the GENETIC SWITCH that turns ON/OFF the genes that lead to PRESENCE/ABSENCE only of pelvic fins.   B- The mutation is in the GENE that makes the materials that build only the pelvic fins.

Which stage of chimpanzee development is most similar to adult Ardipithecus ramidus? To adult Australopithecus afarensis? To adult Homo sapiens? What do these observations suggest with regards to developmental timing?