A child is born with two more codons than those found in the DNA of their parents. How could this genetic difference have happened?
A
substitution - an error occurs during the process of meiosis
B
insertion - an error occurs during the process of meiosis
С
substitution - an error occurs during DNA replication
D
insertion - an error occurs during DNA replication

Answer is in the file below

cutt.ly/zxt1ipy

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.

burning fossil fouls really decrease the carbon in the atmosphere so b