Bio Lecture 2-21-13

Front 1

parthenogenic chromosomes

Back 1

have chromosomes from both mom and Dad

Front 2

prader willi syndrome

Back 2

7 genes on paternal chromsome 15 are imprinted or under expressed

symptoms: developmental delays, compulsion to eat anythingh

Front 3

angelman syndrome

Back 3

genes on maternal chromosome 15 are imprinted

symptoms: developmental delays, permanent smile

Front 4

NOEY@ imprinting

Back 4

paternally expressed, maternally imprinted chromosome 1

associated with breast and ovarian cancers

Front 5

epicgenetics

Back 5

above genetics, decides what genes, have what effect on your life

Front 6

ABC homeotic genes

Back 6

floral organ identity genes are divided into 3 classes, depending on which organs they affect

duplications / losses of these, or mutations

leafy, regulatory gnu that controls on/ off function

Front 7

leafy production leads to

Back 7

abc homeotic production

Front 8

plant epigenetics

Back 8

any potentially stable and heritable change in gene expression that occurs without a change in DNA sequence

Front 9

process of epigenetics

Back 9

genetically identical cells or individual s
different epigenetic modifications leading to different expression patterns
which lead to different phenotype

Front 10

plant growth and differential

Back 10

happens at the same time usually
regulated by developmental genes
happens as a result of interacting gene products and over the lifetime of the plan plant growth factors and hormones

Front 11

plant growth regulators

Back 11

directly control growth, development and movement

Front 12

birth of developmental bio and eve-devo -genetics

Back 12

late in the twentieth century, the fields of genetics and embryology came together to form the new discipline of evolutionary developmental biology

many of genes regulating development are highly conser ted, sequences have changed very little

Front 13

plants and animals share many regulatory genes, but plants differ from animals in

Back 13

plant cells do not move relative to one another
changes in the shape of a developing plant result from cell proliferation and elongation

Front 14

cell fate determined by modulation... in earlydevelopment

Back 14

allows differently parts of their bodies to change independently of one another

in plants future reproductive cells are not set aside early during plant development

Front 15

heterochrony

Back 15

developing embryos exhibit modularity, composed of independent units time
relative time of two different developmental processes

Front 16

two ways in which changes in genes that regulate development can lead to important morphological changes

Back 16

mutations in genes that regulate developmental processes

change in time or place of expression of developmental regulatory genes

Front 17

meristems

Back 17

plants produce clusters of undifferentiated, actively dividing cells

Front 18

developmental plasticity

Back 18

plants can change their development in response to environmental conditions