Dominant alleles are . Only expressed if paired with a recessive allele

Only expressed if paired with another dominant allele

Always expressed

Never expressed

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Did you ever figure out the right answers since you asked?

In atoms, the electron carries a negative elementary or unit charge; the proton carries a positive charge. the two types of charge are equal and opposite. in an atom of matter, an electrical charge occurs whenever the number of protons in the nucleus differs from the number of electrons surrounding that nucleus.