Evolutionary Development 1

Question 1

temporal and spatial control of gene expression

Answer 1

differential gene expression is what make different cells or tissues

Question 2

cell behavior

Answer 2

cell to cell interactions that build size and shape

Question 3

Protein Evolution

Answer 3

change in DNA that leads to a change in proteins amino acid sequence and leads a change in function

Question 4

Gene Duplication

Answer 4

duplication of genes and changes that control development

Question 5

Regulatory Evolution

Answer 5

changes in the timing and location of gene expression during development

Question 6

What are carnivorous pkants

Answer 6

secrete enzymes that digest their prey and then absorb the nutrients (bugs have a ton of chitin)
- use chitin for defense from fungal infection and digestion. the exoskeletons of insects
Defense has a protein that localizes enzymes inside the cell

Digestive chitnases are openly secreted to be secreted

Question 7

Hox genes

Answer 7

encode transcription factors that regulate the expression of other genes, either active or repress these genes, evolved through gene duplication and protein evolution.

Question 8

Trends in Hox Genes

Answer 8

many hox genes is correlated with the phenotypic complexity, all animals and eumentazoans have them, fundamental role in the development of the body.

Question 9

Regulatory evolution

Answer 9

changes in expression of combination of hox genes

Question 10

UBX

Answer 10

allow individual segments to have unique identities and therefore to eolve evolutionary modularity