Recitation 7 Quiz

Question 1

3 ways development occurs:

Answer 1

• Specification
• Determination
• Differentiation

Question 2

•Specification

Answer 2

• the first cues confer spatially distinct

identity

Question 3

•Determination

Answer 3

• time-point when a specific

developmental fate becomes fixed

Question 4

•Differentiation

Answer 4

• process by which a cell achieves

final form and function

Question 5

A class Only =

Answer 5

petals

Question 6

A + B expressed=

Answer 6

petal

Question 7

B + C

Answer 7

stamens

Question 8

C class

Answer 8

only carpels develops

Question 9

How is there only 3 classes yet 4 different organ whorls

Answer 9

transcription factors work together

Question 10

How are mutants named

Answer 10

by the missing class

Question 11

Maternal effect

Answer 11

come from the mother

Question 12

Zygotic genes

Answer 12

made in zygote

Question 13

gap gene mutation

Answer 13

delete “gaps” in the segmentation pattern

Question 14

Pair rule

Answer 14

every other segment deleted

Question 15

segment polarity mutation

Answer 15

defects in one side of each segment

Question 16

Homeotic selector genes

Answer 16

once segment positional information is established, homeotic genes (HOX) are expressed indicating what the segment will differentiate into

Question 17

How to transcriptional networks regulate development?

Answer 17

By generating patterns of gene expression

Question 18

Cascades

Answer 18

Cis-regulatory elements are key they provide specificity and flexibility