Select the three correct answers. nucleotide substitutions within a coding sequences always change the amino acid sequence encoded by a gene. mutations that occur in the intron sequences cannot affect the protein coding sequence of a gene. missense mutations always change the amino acid sequence encoded by a gene. insertions or deletions of single base-pairs within a protein coding sequence probably change the amino acid sequence encoded by a gene. nucleotide substitutions outside of the coding sequence can affect the expression of a gene.

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.

actually the answer is c

answer: pee on jews

explanation: