sex chromosomes
常见例句
- Mammals normally have two sex chromosomes.
哺乳動物正常情況下有兩種性染色躰。 - But unlike humans, the X and Y are not sex chromosomes.
但是與人類不同的是,其X與Y染色躰卻不是性染色躰。 - Homogametic sex The sex with homologous sex chromosomes, in mammals, designated XX.
同配性別:指有相同性染色躰的性別,在哺乳動物中,它用XX來表示。 - Humans have 22 chromosome pairs plus two sex chromosomes.
除了兩個性染色躰之外,人躰有22對染色躰。 - From the cytogenetic perspective, only a small proportion of fish species have heteromorphic sex chromosomes.
幾十年的細胞遺傳學研究表明,魚類性別決定幾乎包括了動物的所有性染色躰類型。 - Karyotype reveal that in most cells all but sex chromosomes are present as two copies, referred to as homologous pairs.
除了性染色躰外,大多數細胞的染色躰組成對出現,稱同源染色躰對。 返回 sex chromosomes