Part Two: Via - The Punnett Square
defective
/dɪˈfektɪv/
not made properly, or not working properly
有问题的，有毛病的，有缺陷的
The disease is caused by a defective gene.
这种疾病是由缺陷基因引起的。
the odds
/ɑːdz/
how likely it is that something will or will not happen
（事物发生的）可能性
I’m afraid that the odds are heavily against her winning (=it is not likely).
恐怕她获胜的可能性很小。
incredibly
/ɪnˈkredəbli/
-
in a way that is hard to believe
令人难以置信地 -
extremely
极端地；极其
incredibly lucky
极其幸运
countless
/ˈkaʊntləs/
too many to be counted
无数的，数不尽的
The new treatment could save Emma's life and the lives of countless others.
新的疗法可拯救埃玛的生命以及无数其他人的生命。
tic-tac-toe
/ˌtɪk tæk ˈtoʊ/
tic-tac-toe
noughts and crosses
a simple game in which two players take turns to write Os or Xs in a set of nine squares. The first player to complete a row of three Os or three Xs is the winner.
井字游戏，圈叉游戏（二人轮流在井字形九格中画 O 或 X，先将三个 O 或 X 连成一线者为胜）
grid
a pattern of straight lines, usually crossing each other to form squares
网格；方格
geneticist
/dʒəˈnetɪsɪst/
a scientist who studies genetics
遗传学家
inheritance
/ɪnˈherɪtəns/
physical or mental qualities that you inherit from your family
遗传特征
recessive
/rɪˈsesɪv/
a recessive physical characteristic only appears in a child if it has two genes for this characteristic, one from each parent. It does not appear if a dominant gene is also present.
隐性的
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