The sequencing of genomes — human genomes as well as those of model organisms, like the fruit fly Drosophila melanogaster — has given us deep insight into the structure of chromosomes and their nucleotide sequences. But long before DNA sequencing technology existed, researchers were able to use mutant genes to create high-quality chromosome maps for… Continue reading How to make a Drosophila chromosome map
Category: DNA and chromosomes
All about Drosophila melanogaster chromosomes
When choosing a model organism, one of the main factors to consider is the complexity of the genome. How many genes does it have? How many non-coding vs. protein-coding sequences? How many chromosomes? Four chromosomes Drosophila melanogaster has four chromosomes, or more precisely, four pairs of chromosomes in each somatic cell: a pair of sex… Continue reading All about Drosophila melanogaster chromosomes