攜卵的 的英文怎麼說
中文拼音 [xiéluǎnde]
攜卵的
英文
ovigerous-
Flies spread various microorganisms and carry worm eggs. up to now, 30 species of virus, 100 - plus species of bacteria and 30 species of protozoon have been discovered
蠅類傳播的微生物很多,已證實病毒約30種,細菌100多種,原蟲30多種並可攜帶多種蠕蟲卵等。Different amount of copies in different tissues attribute to the different density of positive signals. the result of the experiment suggested that the transgenic animals can be produced by spermatozoa - mediated gene transfer after the entrapment of liposome. and because the exogenous dna occurs losing the segments. partly integration, or existin g outside of genome dna, the rate of chimerism is relatively high
結果表明: ( 1 )脂質體包裹外源基因轉染精子的方法,可將外源基因導入受精卵中,能夠獲得轉基因動物,並得到了較高的轉基因陽性率; ( 2 )精子攜帶的外源dna的整合過程是隨機的,在受精過程和胚胎早期分化過程中可能發生了片段丟失、不完全整合或游離于基因組存在而產生嵌合體。In mammals, each sperm has the haploid set of chromosomes and each egg has another haploid set
對于哺乳動物來說,每個精細胞都攜帶著構成後代的一半染色體(單倍體》 ,卵細胞則攜帶另外一半。The animal resulting from that egg will therefore carry that gene and so is a transgenic animal
由這種卵發育成的動物將攜帶該基因從而成為轉基因動物。Although mature eggs and sperm normally have only half the genetic material of a typical body cell, to prevent an embryo from having a double set of genes following conception, eggs halve their genetic complement relatively late in their maturation cycle
在正常的狀況下,為了避免受精后胚胎含有雙份基因,成熟的卵子和精子各攜帶體細胞一半的遺傳物質,但是卵子只有在快要成熟的時候才會減半其遺傳物質。分享友人