Upload Rate & dominant upper level

Source: Internet
Author: User
Yield Rate (penetrance): the percentage of phenotype in a population with a certain genotype (usually in the Impurity State. When the ratio is equal to 100%, when the complete penetranc is lower than 100%, It is incomplete or incomplete penetranc. For example, in light conditions, the chlorophyll-producing genotype AA or AA of corn should be 100% of the total chlorophyll, and the yield of gene A is 100%. in light-less conditions, then, we can say that there is no need to form a. In the absence of light, the transfer rate of gene A is 0. In addition, for example, in the fruit fly in the black abdomen, the percentage of recessive intermittent wing vein gene I is only 90%, that is to say, 90% of the II genotype individuals have intermittent wing veins, while the remaining 10% of the individuals are wild type, however, their genetic components are still II. Dominant epitasis: in the upper-bit effect, dominant genes are dominant, and the Mendel ratio is modified. Applied Disciplines: Genetics (first-level discipline); classical genetics (second-level discipline ). In some cases, a pair of genes can affect the effect of another pair of non-equigenes. This type of interaction between non-equigenes is called the upper role. A dominant gene masks another dominant gene and shows its own shape, this type of gene is called dominant host action. The performance of one dominant gene is influenced by another non-equipotent gene. the suppression or masking of non-equipotent genes is called the dominant effect. The inhibitory gene is called the upper gene, and the suppressed gene is called the Lower gene. (1) dominant upper: the dominant genes in a pair of genes impede other effects on genes. (2) recessive upper layer: the recessive upper layer is called when a pair of recessive genes hinders another pair of genes.

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