Modifies a noun

• generation: The resultant offspring are considered to be congenic, and 99.9 % inbred, after ten backcross generations.

• program: There would be no point in performing such a backcross program unless one wanted to transfer some character from one species to the other.

• breeding: We have also used conventional MAS with backcross breeding with selection based on the DNA extracted from rice seedlings grown in a greenhouse.

• line: These involved QTL analysis of backcross lines, recombinant inbred lines and doubled haploid mapping populations.

Modifying Another Word

• repeatedly: The chosen Indian regional varieties were repeatedly backcrossed with Coker 312 to develop different Bt cotton varieties.