Definition of crossing over in English:

crossing over

noun

mass nounGenetics

The exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring.
〔遗传〕（同源染色体间遗传物质的）交换
Example sentencesExamples
- In this organism crossing over between X and Y chromosomes was shown for the first time in vertebrates.
- Using these data, we investigate several alternative models of how gene conversion and crossing over may be associated.
- Recently, theoretical models have been developed that incorporate both crossing over and gene conversion.
- Both predictions can be tested by examining patterns of gene conversion and crossing over in appropriately marked strains.
- The frequency of aberrant chromosomes resulting from ectopic crossing over was decreased 6-fold.

Definition of crossing over in US English:

crossing over

nounˌkrôsiNG ˈōvər

Genetics

The exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring.
〔遗传〕（同源染色体间遗传物质的）交换
Example sentencesExamples
- Both predictions can be tested by examining patterns of gene conversion and crossing over in appropriately marked strains.
- In this organism crossing over between X and Y chromosomes was shown for the first time in vertebrates.
- Using these data, we investigate several alternative models of how gene conversion and crossing over may be associated.
- The frequency of aberrant chromosomes resulting from ectopic crossing over was decreased 6-fold.
- Recently, theoretical models have been developed that incorporate both crossing over and gene conversion.

单词	crossing over
释义	Definition of crossing over in English: crossing over noun mass nounGenetics The exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring. 〔遗传〕（同源染色体间遗传物质的）交换 Example sentencesExamples In this organism crossing over between X and Y chromosomes was shown for the first time in vertebrates. Using these data, we investigate several alternative models of how gene conversion and crossing over may be associated. Recently, theoretical models have been developed that incorporate both crossing over and gene conversion. Both predictions can be tested by examining patterns of gene conversion and crossing over in appropriately marked strains. The frequency of aberrant chromosomes resulting from ectopic crossing over was decreased 6-fold. Definition of crossing over in US English: crossing over nounˌkrôsiNG ˈōvər Genetics The exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring. 〔遗传〕（同源染色体间遗传物质的）交换 Example sentencesExamples Both predictions can be tested by examining patterns of gene conversion and crossing over in appropriately marked strains. In this organism crossing over between X and Y chromosomes was shown for the first time in vertebrates. Using these data, we investigate several alternative models of how gene conversion and crossing over may be associated. The frequency of aberrant chromosomes resulting from ectopic crossing over was decreased 6-fold. Recently, theoretical models have been developed that incorporate both crossing over and gene conversion.
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