Word · Frequency #25008
xx
XX染色体
the normal set of sex chromosomes in a female
- 1.
n. (genetics) normal complement of sex chromosomes in a female
abbr. 血型(xue xing；汉语拼音)
abbr. 血型(xue xing；汉语拼音)
In use
Female mammals typically have an XX pair of sex chromosomes.
The lab report indicated an XX chromosome pattern, so the sample was female.
An XX combination is normal for females, while males usually have an XY pair.
be XX
XX在此指女性的正常性染色体组成；这种结构常用来说明某人的性染色体类型。
A human female is typically XX, while a human male is typically XY.
人类女性通常为XX，而人类男性通常为XY。
XX [noun]
XX可放在名词前作定语，表示该名词所指对象具有女性性染色体组合。
XX embryos usually develop as females.
XX胚胎通常会发育成雌性。
have XX
have XX表示具有或携带女性的性染色体组成，多见于遗传学讨论。
A female has XX, and a male has XY.
女性有XX，男性有XY。
Common mistakes
Women have XX chromosome.Women have XX chromosomes.
XX 指一对性染色体（两条 X 染色体），此处“chromosome”是可数名词，需用复数形式才能与 XX 的含义对应。
A female has two XX chromosomes.A female has two X chromosomes.
XX 本身已表示两条 X 染色体，再用 two 修饰会重复计数；若要强调数量，应直接说 two X chromosomes。
My XX is A.My blood type is A.
受汉语拼音缩写影响，学习者误把“血型”（xue xing）的缩写 XX 当成英语表达；英语中 XX 指女性性染色体组合，与血型无关，表示血型应用 blood type。
Connections
Collocations
- XX chromosomes
- XX染色体
- Women have XX chromosomes, and men have XY chromosomes.女性有XX染色体，男性有XY染色体。
- XX pair
- XX染色体对
- The XX pair in female cells ensures normal reproductive function.女性细胞中的XX染色体对确保正常的生殖功能。
- XX female
- XX女性
- An XX female may still have certain genetic variations affecting development.XX女性可能仍有某些影响发育的遗传变异。
- XX genotype
- XX基因型
- The XX genotype is the most common genetic signature of female sex.XX基因型是女性性别最常见的遗传特征。
- XX complement
- XX染色体组
- A normal human female has an XX complement, while a male has an XY complement.正常人类女性具有XX染色体组，而男性具有XY染色体组。
Antonyms
Learner notes
Memory Tip
两个X字母像两条X染色体，女性正常性染色体组合就是XX，看到XX就想到女性。
Context & Register
语域：formal 常见场景：遗传学、医学、生物学 在英语中，xx作为名词通常指女性的性染色体组合（即XX染色体），多用于遗传学、医学和生物学等专业领域，在日常口语中不常用。
Dictionary facts from ECDICT.