Science 30 January 1999 Grade 12 Diploma Examination
Science 30 January 1999 Grade 12 Diploma Examination
Science 30 January 1999 Grade 12 Diploma Examination
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<strong>12</strong>. The zygote is cultured and is implanted as a multicelled embryo. During the steplabelled “Culture,” the cells of the future clone undergoA. mitosisB. meiosisC. fertilizationD. gene splicingUse the following information to answer the next question.Punnett Squares1TTT2TTttt3tTt4tttttT – Dominant traitt – Recessive traitNumerical Response02. Inherited traits are determined by the gene pairs of parents. Match the Punnettsquare, as numbered above, with the probability of a recessive trait being expressedin the offspring, as listed below.0% _____ (Record in the first column.)25% _____ (Record in the second column.)50% _____ (Record in the third column.)100% _____ (Record in the fourth column.)(Record your answer in the numerical-response section on the answer sheet.)7
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