leys- development

Question 1

The four essential processes by which a multicellular organism is made

Answer 1

1. cell proliferation
2. cell specialization
3. cel interaction
4. cell movement

Question 2

cell specializatoin

Answer 2

cells born different- asymmetric division

Question 3

cell interaction

Answer 3

symmetric divison. sister cells become different as a result of influcences acting on them after their birth

Question 4

homeotic genes do what?

Answer 4

direct regions to differentiate into their final form.

determine specialization of segments

Question 5

know that genes can have _________ by having a series of control regions directing transcription in different regions of the organism.

Answer 5

complex expression patterns

Question 6

know that genes can have complex expression patterns by having a series of ______________ in different regions of the organism.

Answer 6

control regions directing transcription

Question 7

know that homeotic genes are arrayed on the _____ chromosome in the same spatial order as they are expressed in developing embryos and in the _____ order in fruit flies and humans

Answer 7

same, same