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test-cross

n.
1.a cross between an organism whose genotype for a certain trait is unknown and an organism that is homozygous recessive for that trait so the unknown genotype can be determined from that of the offspring

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    Idiom of the Day

    cop out
    to avoid doing something that you were planning to do
    My friend copped out from our plan to go to to the beach for the day.



    1.
    (1) A political decision or policy
    (P) ifjudged by its immediate results,
    (Q) in the light of its '
    (R) may seem to be very wise
    (S) but may prove to be unsound
    (6) ultimate consequences

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    My Account / Test History
    Fact
    Sawney Beane, his wife, 8 sons, 6 daughters, and 32 grandchildren were a family of cannibals that lived in the caves near Galloway, Scotland in the early 17th Century. Although the total number is not known, it is believed they claimed over 50 victims per year. The entire family was taken by an army detachment to Edinburgh and executed, apparently without trial      .. More >>
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