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30 Cards in this Set
- Front
- Back
Cellular differentiation determined intrinsically and not dependent on external signals or interactions with other cells.
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autonomous determination
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The pathway of differentiation that a cell normally undergoes.
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cell fate
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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.
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combinatorial control
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Any of a group of genes that establish the basic anterior-posterior and dorsal-ventral axes of the early embryo.
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coordinate gene
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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.
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flower ABC model
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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.
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gap gene
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A DNA sequence motif found in the coding region of many developmental regulatory genes.
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homeobox
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Any of a group of genes in which a mutation results in the replacement of one body structure for another body structure.
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homeotic (HOX) gene
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Structures present in the body of insect larvae from which the adult structures develop during pupation.
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imaginal disk
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The molecule that binds to a specific receptor.
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ligand
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A chart of cell lineages and their developmental fates.
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lineage diagram
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A mutation that eliminates gene function; also called a null mutation.
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loss-of-function mutation
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A gene that influences early development through its expression in the mother and the presence of the gene product in the oocyte.
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maternal-effect gene
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The mitotically active growing point of plant tissue.
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meristem
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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.
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pair-rule gene
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Developmental unit in Drosophila consisting of the posterior part of one segment and the anterior part of the next segment in line.
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parasegment
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Any of a series of repeating morphological units in a body plan.
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segment
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Any of a group of genes that determines the spatial pattern of development within the segments of Drosophila larvae.
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segment-polarity gene
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Any of a group of genes that determines the spatial pattern of segments and parasegments in Drosophila development.
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segmentation gene
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A receptor protein containing amino acid sequences that span the cell membrane.
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transmembrane receptor
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A chart of cell lineages and their developmental fates.
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lineage diagram
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A mutation that eliminates gene function; also called a null mutation.
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loss-of-function mutation
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A gene that influences early development through its expression in the mother and the presence of the gene product in the oocyte.
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maternal-effect gene
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The mitotically active growing point of plant tissue.
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meristem
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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.
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pair-rule gene
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Developmental unit in Drosophila consisting of the posterior part of one segment and the anterior part of the next segment in line.
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parasegment
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Any of a series of repeating morphological units in a body plan.
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segment
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Any of a group of genes that determines the spatial pattern of development within the segments of Drosophila larvae.
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segment-polarity gene
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Any of a group of genes that determines the spatial pattern of segments and parasegments in Drosophila development.
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segmentation gene
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A receptor protein containing amino acid sequences that span the cell membrane.
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transmembrane receptor
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