Sturtevant's detailed mapping studies of the X chromosome of Drosophila supported what genetic principle?
A)That genes are arranged in a linear order on the chromosomes.
B)That genes are carried on chromosomes.
C)That sex determination is controlled by the X and Y chromosomes.
D)That segregation of an allelic gene pair is accompanied by disjunction of homologous chromosomes.
E)That different pairs of chromosomes assort independently.

Question

Quizplus · Accepted Answer

Sturtevant's mapping studies demonstrated that genes are arranged in a linear order on chromosomes, which was a groundbreaking discovery in genetics. This linear arrangement allows for the calculation of distances between genes based on recombination frequencies.

Sturtevant's Detailed Mapping Studies of the X Chromosome of Drosophila