Related Experiment Video
Updated: May 5, 2026

Quantitative Comparison of cis-Regulatory Element CRE Activities in Transgenic Drosophila melanogaster
Published on: December 19, 2011
Evolution of transcribed and spacer sequences in the ribosomal RNA genes of Drosophila
Abstract:
Examination of the ribosomal RNA (rRNA) gene of six sibling species that make up the D. melanogaster subgroup reveals that the nontranscribed spacer is highly conserved during evolution. Indeed, the spacer is at least as conserved as the transcribed rRNA sequence in four of the six species and only slightly less conserved in the others. These data support the hypothesis previously suggested (Tartof and Dawid, 1976) that selection has a significant role in maintaining the parallel evolution of genetically separate but homologous redundant gene clusters.
More Related Videos
10:26TRAP-rc, Translating Ribosome Affinity Purification from Rare Cell Populations of Drosophila Embryos
Published on: September 10, 2015
04:59Single Nucleotide Polymorphism-sensitive FISH Detection of Locus-specific Ribosomal RNA Transcription in Drosophila melanogaster
Published on: March 28, 2025
Related Concept Videos
Gene Evolution - Fast or Slow?
In contrast, regions which code...
Position-effect Variegation
Cis-regulatory Sequences
Exon Recombination
Exon shuffling follows “splice frame rules.” Each exon...
Ribosome Profiling
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Bacterial Transcription
Transcription can be divided into three main stages, each involving distinct DNA sequences to guide the polymerase. These are: