專業(yè)英語(yǔ)遺傳學(xué)的基礎(chǔ)(編輯修改稿)
2025-02-02 15:08 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 type and number/ of all progeny/ produced from each pair of parent pea plants, and followed the results/ of each cross for two generations. ? 他也記錄了來(lái)自于每一對(duì)親本的所有子代的類型和數(shù)量 ， 和兩個(gè)子代雜交的結(jié)果 。 ? For each of the characters /he studied, Mendel found that /one trait was dominant [39。d?min?nt] /while the other was recessive [ri39。sesiv] . ? 對(duì)于他研究的每個(gè)特征而言 ， 孟德?tīng)柊l(fā)現(xiàn)一個(gè)特征是顯性的 ,那么另一個(gè)就是隱性的 。 ? In the second filial [39。filj?l] (F2) generation, the ratio /of dominant to recessive /was 3:1. ? 在子 2代中 , 顯性與隱性比為 3∶ 1。 ? Mendel deduced that/ this results was possible /only if /each individual possesses only two hereditary units, one from each parent. ? 孟德?tīng)柾普?:只有在每個(gè)個(gè)體僅擁有兩個(gè)遺傳單元 ， 并每個(gè)單元來(lái)自一個(gè)親本時(shí) ， 實(shí)驗(yàn)結(jié)果才成立 。 ? The units /Mendel hypothesized [hai39。p?θisaiz]/ are today known as /alleles [?39。li:l] , alternative forms of genes. ? 孟德?tīng)柤僭O(shè)的遺傳單元就是今天共識(shí)的等位基因 ,基因的兩種形式 。 ? Genes are the basic units of heredity. ? 基因是遺傳的基本單元 . ? An anism /that inherits /identical alleles for a trait/ from each parent/ is said to be homozygous /[h?m?39。zaig?s] for that trait。 if different alleles for a trait /are inherited, the anism is heterozygous [het?r?u39。zaig?s] for that trait. ? 從親本遺傳而來(lái)的是一個(gè)特征的兩個(gè)相同的等位基因的個(gè)體被認(rèn)為是純合的 。 反之 ,遺傳而來(lái)的是兩個(gè)不同的等位基因的個(gè)體 ， 就是雜合的 。 ? When an anism/ is heterozygous /for a trait, the resulting phenotype [39。fi:n?taip]/ for that trait /expresses only the dominant allele. ? 對(duì)某一個(gè)特征而言 ,當(dāng)個(gè)體是雜合時(shí)，它的表型僅由顯性基因決定。 ? Thus,the anism’s phenotypeits physical appearance and properties/differs from /its genotype [39。d?en?taip] , which may include /both a dominant and a recessive allele. / ? 因此 ， 生物的表型與基因型是不同的 ,表型是個(gè)體的物理特征和品質(zhì) , 而基因型包括一個(gè)顯性基因和一個(gè)隱性基因 。 A pictorial representation of/ all possible bination of a geic cross/ is known as a Punt square. 遺傳雜交的所有可能的組合圖表被稱為旁納特方格。 ? Punt square：a method used to determine the probabilities of bination in a zygote [39。zaig?ut] . ?
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