Organelle Genetics

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Biolistic

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Biology

12 Terms

1

Biolistic

________ mediated transformation: introduction of foreign DNA across two membranes of the chloroplast envelope, selection on medium containing the antibiotic that corresponds to the resistance marker gene in transformation vector.

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2

RNA

________ editing in Mitochondria: changes the nucleotide sequence of transcripts, Creation of an ORF, creation of translation start and stop codons, changes the AA sequence relative to that predicted by the DNA.

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3

Heteroplasmy

________: both WT and MT cpDNA containing cells and tissues.

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4

Cytohets

________: a mixture of wt and mt cpDNA.

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5

Division mitochondria

________: dynamin like proteins on both inner and outer membranes, fission type proteins act at outer membrane, interact with cytoskeletal components during cytokinesis.

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6

Chloroplast advantages

________: high- level production of transgene product, high precise integration of transgenes due to HR, transgene stacking in operons, no epigenetic effects.

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7

Cytoplasmic segregation

________: following mitosis progeny with mixture of chloroplasts segregate by stochastic partitioning, random cpDNA segregation.

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8

Chloroplast applications

________: herbicide and pathogen resistance, biopharmaceuticals, metabolic pathway modification.

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9

CMS Phenotypes

________: altered floral morphology (absence of stamen, anthers, pollen grains), Homeotic ________, Degenerative ________ (anther and pollen degradation)

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10

Mitochondrial replication

________: Heavy strand forms in displacement loop, loop expands light strand starts replication starts to look like a D instea of an O.

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11

Chloroplast transformation

________: reverse genetics, Gene replacement, biotechnology and test of expression elements.

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12

CMS genes

________: 14 mt genes, mainly GOF, chimeric genes (recombination b /mtGenomes) genes encoding ATP synthase and Cytochrome Oxidase.

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