|
|
| 1. | genome of the germ cells and embryonic cells in scion are the main reasons why the majority of the hybrid |
| 砧木中的遗传物质转移并整合到接穗生殖细胞和胚胎细胞的染色体组中，是杂种后代出现大量野生植株和果树遗传不遵守孟德尔定律的主要原因。 |
|
|
| | |
| 2. | Scientists have bred new hybrid plants and animals which yield more food. |
| 科学家培育的许多新的杂交植物和动物，提供了更多的食物。 |
|
|
| | |
| 3. | including bioengineering, a number of important technologies, such as the new combination of two-line hybrid |
| 在生物工程等高技术领域，两系法杂交稻新组合等一批重大技术已显示出良好的发展前景。 |
|
|
| | |
| 4. | Diploid, triploid, tetraploid, pentaploid and hexaploid hybrid plants have been recovered from protoplast |
| 这些体细胞杂种有二倍体、倍体、倍体、倍体和六倍体,但主要是四倍体。 |
|
|
| | |