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Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion