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Thinking Scientifically
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  1. A population of lizards does not appear to contain any males, yet young are being born. If analysis shows that the offspring are diploid and have the same genetic traits as their mothers, what is the most likely source of maternal DNA to fertilize the eggs? How you would you test this hypothesis?
  2. During anaphase I of meiosis, spindle fibers pull the homologues of a bivalent in opposite directions. Explain with reference to attachment of spindle fibers to kinetochores.

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