Honestly this subject is really really hard .. I wish I could help sorry
Answer: Two heterozygous (both with example genotype Pp) can have a homzygous child (with phenotype PP or pp)
Answer:Carbon has four valence electrons, so it can achieve a full outer energy level by forming four covalent bonds. When it bonds only with hydrogen, it forms compounds called hydrocarbons. Carbon can form single, double, or triple covalent bonds with other carbon atoms.
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