| 释义 |
Y chromosome
noun[ C ]
(alsoY-chromosome)uk /ˈwaɪ ˌkrəʊ.mə.səʊm/ us /ˈwaɪ ˌkroʊ.mə.soʊm/
a sex chromosome (= structure containing chemical patterns) that exists only in male cells: Y染色体
The Y chromosome is smaller than the X chromosome.
If a Y-chromosome pairs up with an X-chromosome during fertilization, a male baby will result.如果受孕过程中一个Y染色体与一个X染色体相结合，则发育为男婴。
Compare
X chromosome
Y chromosome tests are used to track a man's paternal ancestry.
To make sperm cells, the organism needs a Y chromosome.
Klinefelter syndrome is defined by the presence of a Y chromosome as well as two or more X chromosomes.
SMART Vocabulary: related words and phrases
Genetics
accession number
adenine
anaphase
autosomal
autosomally
genetic fingerprinting
genetically
genetically engineered
geneticist
genic
genomic
genomics
monozygotic
mutate
non-Darwinian
non-familial
non-genetic
non-mutant
nondominant
sex-linked
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