The intranuclear organization of normal, hemizygous and excision-deficient rRNA genes during developmental amplification in Tetrahymena thermophila.

doi:10.1007/s004120050244

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Article

The intranuclear organization of normal, hemizygous and excision-deficient rRNA genes during developmental amplification in Tetrahymena thermophila.

Chromosoma - 1 Sept 1997

Ward J G, Blomberg P, Hoffman N, Yao M C

Abstract excerpt

In the ciliated protozoan, Tetrahymena thermophila, the diploid germinal micronucleus contains two allelic copies of the gene for ribosomal RNA (rDNA). During genesis of new somatic macronuclei the germline rDNA gene is excised by developmentally programmed chromosome breakage and preferentially...

Topics

Alleles
Animals
Cell Nucleus
DNA, Protozoan
DNA, Ribosomal
Gene Amplification
Gene Expression Regulation, Developmental
Genes, Protozoan
In Situ Hybridization, Fluorescence
Mutation
Tetrahymena thermophila

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