Genes that are located on the same chromosome are called linked genes.
Thousands of genes are linked together in a chain to form chromosomes.
Genes that are located on the same chromosome are chained together by the thousands.
Genes that are located on the same chromosome are chained together by the what?
  * forces
  * light energy
  * voltage
  * thousands
  * A computer
  * sun's heat
  * photons
  * Acids