What term defines a gene made up of two different alleles

The right answer is Heterozygous

An individual is heterozygous for a gene when he has two different alleles of that gene.

Heterozygosity, being heterozygous, decreases the risk of expression of deleterious recessive alleles and allows for different versions of the same gene, which can be a guarantee of adaptability to changing environmental conditions.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.