L5

Question 1

drosophila sensory bristles do what

Answer 1

sense air movements when they fly and help them to balance

Question 2

spaced patterns

Answer 2

happen in development, it is when cells are made proportional to each other - one tissue making at least 2 cell types in proportion to each other

Question 3

how does the frog NS work?

Answer 3

frogs have 2 - primary controls the movement of the tadpole, and then the secondary controls movement of the frog

Question 4

how are spaced patterns produced?

Answer 4

lateral inhibition

Question 5

what is an experiment you can do to prove that the cell that is adopting the primary cell fate is emitting an inhibitory signal?

Answer 5

ablation

Question 6

there is a finite window where you can ablate a cell and its neighbour will become the cell fate of the one you killed true or false

Answer 6

true

Question 7

what do sheath cells do?

Answer 7

improves speed of conduction
is a type of glial cell

Question 8

why is it called lateral inhibition?

Answer 8

because it is in the plane of epithelium

Question 9

proneural cluster has the potential to become what

Answer 9

group that has potential to become sense organ precursor cells

Question 10

proneural mutant

Answer 10

too few bristles
mutated the genes needed to make proneural clusters

Question 11

neurogenic mutant

Answer 11

too many bristles
mutated the gene needed for lateral inhibition

Question 12

autonomous

Answer 12

required in cell that is receiving the signal

Question 13

non autonomous

Answer 13

required in a neighbour

Question 14

this is reminder to go look at the genetic mosaic slide and revise it!!!

Answer 14

woo

Question 15

notch is the _____

Answer 15

receptor

Question 16

delta

Answer 16

signal

Question 17

this is your reminder to go revise notch and delta mutation signal and receptor things

Answer 17

woo

Question 18

If the achaete scute is removed, what happens?

Answer 18

proneural clusters not made

Question 19

what are the two classes of mutants that affect trichome development?

Answer 19

Glabra1 and triphychon

Question 20

____, ____ and ____ form a transcriptional complex that promotes trichome development

Answer 20

Gl1
TTG1
Gl3

Question 21

___ and ___ form a non-functional complex with GI3 and TTG but are expressed in the same cells as GI1

Answer 21

Try
Cpc

Question 22

Try and Cpc diffusion is ____ than GI1

Answer 22

quicker