Evo-Devo Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

what are phylotypic stages?

A

shells, fins etc develop later on
early stage all basic structures look the same
comparemalised into anterior and posterior segments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what do maternal genes give rise to?

A

protein gradients

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

transcription regulates?

A

gap genes which regulates pair rule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is segment polarity?

A

the gene engraved in the germ band stage of arthropods - stripes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what is the phylotypic hourglass?

A

up segmentation cascade - a greater difference between species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what is special about the Hox gene?

A

expression provides a hox code of positional info across bilaterians

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

tinman?

A

genes and heart development

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

how did the eye evolve?

A

Pax 6 - different ways in different organisms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

last common ancestor?

A

eubilaterian

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what makes up genes?

A

regulatory elements, promoters, introns, exons and UTRs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

types of mutations?

A

point, duplications, rearrangements, indents - insertion/deletion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what are hox gene clusters an example of?

A

evolution via duplication

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is the DDC model?

A

duplication - degeneration - complementation - either

  • subfunctionalisation - both get mutation, if complementary survive
  • neofunctionalisation - new function
  • nonfunctionalisation - death
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what do modular regulatory elements control?

A

expression in distinct contexts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is pleitropy?

A

multiple functions of the one gene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

examples of pleitropy in drosophilla?

A

segment polarity

neuroblast specification

17
Q

what is heterometry?

A

evolution via changing sizes of structures

18
Q

what is heterotypy?

A

evolution via changing types of structures

19
Q

what is co-option?

A

recruitment of development networks into evolutionary novelties

20
Q

what is heterochrony?

A

evolution via changing timing of developmental events e.g tadpole to frog