Ch 11

Front 1

Cellular differentiation determined intrinsically and not dependent on external signals or interactions with other cells.

Back 1

autonomous determination

Front 2

The pathway of differentiation that a cell normally undergoes.

Back 2

cell fate

Front 3

Strategy of gene regulation in which a relatively small number of time- and tissue specific positive and negative regulatory elements are used in various combinations to regulate the expression of a much larger number of genes.

Back 3

combinatorial control

Front 4

Any of a group of genes that establish the basic anterior-posterior and dorsal-ventral axes of the early embryo.

Back 4

coordinate gene

Front 5

A model of floral determination in which a unique combination of gene activities present in each whorl of the floral meristem results in the differentiation of a distinct organ in the mature flower.

Back 5

flower ABC model

Front 6

Any of a group of genes that control the development of contiguous segments or parasegments in Drosophila such that mutations result in gaps in the pattern of segmentation.

Back 6

gap gene

Front 7

A DNA sequence motif found in the coding region of many developmental regulatory genes.

Back 7

homeobox

Front 8

Any of a group of genes in which a mutation results in the replacement of one body structure for another body structure.

Back 8

homeotic (HOX) gene

Front 9

Structures present in the body of insect larvae from which the adult structures develop during pupation.

Back 9

imaginal disk

Front 10

The molecule that binds to a specific receptor.

Back 10

ligand

Front 11

A chart of cell lineages and their developmental fates.

Back 11

lineage diagram

Front 12

A mutation that eliminates gene function; also called a null mutation.

Back 12

loss-of-function mutation

Front 13

A gene that influences early development through its expression in the mother and the presence of the gene product in the oocyte.

Back 13

maternal-effect gene

Front 14

The mitotically active growing point of plant tissue.

Back 14

meristem

Front 15

Any of a group of genes active early in Drosophila development that specifies the fates of alternating segments or parasegments. Mutations in these genes result in loss of even-numbered or odd-numbered segments or parasegments.

Back 15

pair-rule gene

Front 16

Developmental unit in Drosophila consisting of the posterior part of one segment and the anterior part of the next segment in line.

Back 16

parasegment

Front 17

Any of a series of repeating morphological units in a body plan.

Back 17

segment

Front 18

Any of a group of genes that determines the spatial pattern of development within the segments of Drosophila larvae.

Back 18

segment-polarity gene

Front 19

Any of a group of genes that determines the spatial pattern of segments and parasegments in Drosophila development.

Back 19

segmentation gene

Front 20

A receptor protein containing amino acid sequences that span the cell membrane.

Back 20

transmembrane receptor

Front 21

A chart of cell lineages and their developmental fates.

Back 21

lineage diagram

Front 22

A mutation that eliminates gene function; also called a null mutation.

Back 22

loss-of-function mutation

Front 23

A gene that influences early development through its expression in the mother and the presence of the gene product in the oocyte.

Back 23

maternal-effect gene

Front 24

The mitotically active growing point of plant tissue.

Back 24

meristem

Front 25

Any of a group of genes active early in Drosophila development that specifies the fates of alternating segments or parasegments. Mutations in these genes result in loss of even-numbered or odd-numbered segments or parasegments.

Back 25

pair-rule gene

Front 26

Developmental unit in Drosophila consisting of the posterior part of one segment and the anterior part of the next segment in line.

Back 26

parasegment

Front 27

Any of a series of repeating morphological units in a body plan.

Back 27

segment

Front 28

Any of a group of genes that determines the spatial pattern of development within the segments of Drosophila larvae.

Back 28

segment-polarity gene

Front 29

Any of a group of genes that determines the spatial pattern of segments and parasegments in Drosophila development.

Back 29

segmentation gene

Front 30

A receptor protein containing amino acid sequences that span the cell membrane.

Back 30

transmembrane receptor