| Our ability to detect doubly recombinant chromosomes depends on the genotype of the homolog after fertilization. |
| Terns and eiders had been disturbed, while eiders had been doubly hit because the pickers were depleting the mussel beds on which they feed. |
| In 1834 Jacobi proved that if a single-valued function of one variable is doubly periodic then the ratio of the periods is imaginary. |
| Most of the crystals were standing on the quartz matrix, but a number were lying flat and were doubly terminated. |
| If this leave-taking is difficult, complex and conflict-filled for most young adults, it is doubly so for adoptees. |
| If the public does not trust the political system then our task is made doubly difficult. |
