The<br/>integration mechanism of foreign genes in genetically modified crops<br/>are () A: Homologous<br/>recombination B: Site-specific<br/>recombination C: Transposition<br/>recombination D: Heterologous<br/>recombination

中国大学MOOC: Recombination frequencies can be calculated by

Conjugation is the process of genetic recombination caused by bacteria through the temporary communication of cells and the transfer of genetic material.

Conjugation is the process of genetic recombination caused by bacteria through the temporary communication of cells and the transfer of genetic material. A: 正确 B: 错误

Which<br/>of following can cause the great variation of influenza virus and<br/>wide epidemic: A: gene<br/>reassortment B: gene recombination C: transduction D: transformation E: conjunction

Which<br/>of following can cause the great variation of influenza virus and<br/>wide epidemic:() A: gene<br/>reassortment B: gene<br/>recombination C: transduction D: transformation E: conjunction

DNA损伤的修复主要包括四种方式() A: 光复活(photoreactivation)作用 B: 切除修复(excision<br/>repair) C: 重组修复(recombination<br/>repair) D: SOS修复(SOS<br/>repair)

Linked genes always exhibit A: phenotypes that are similar B: recombination frequencies of less than 50% C: homozygosity when involved in a testcross D: a greater number of recombinant offspring than parental offspring when involved in a testcross E: a lack of recombinant offspring when a heterozygous parent is involved in a testcross

What is NOT true about the thermal oxide layer? A: A thermal oxide layer can serve as a passivation layer. B: A thermal oxide layer acts as an insulator and forces the electrons to flow in the emitter. C: It creates a back surface field at the back side of the solar cell and thus it reduces the surface recombination velocity. D: The oxide layer can be thermally grown.