2. which substitution mutation has the potential to cause more damage? (1pts) a) substitution of 3rd n-base to go from cau to cac b) substitution of 3rd n-base to go from ugu to ugc c) substitution of 3rd n-base to go from ucu to uuu 3. explain why: (

3rd N-base to go from UCU to UUU

Explanation:

a) substitution of 3rd N-base to go from CAU to CAC will cause a silent mutation which means that the change in nucleotide sequence will not change the encoding aminoacid  i.e Histidine

b) substitution of 3rd N-base to go from UGU to UGC will also results in silent mutation which means that the change in nucleotide from U to C here will not change the encoding aminoacid  i.e Cysteine

c)  the substitution of 3rd N-base to go from UCU to UUU has the potential to cause the damage because in this option the nucleotide change cause the change in encoding amino acid sequence i.e from Serine to Phenylalanine, so it can affect the protein function and stability further. This type of mutation is called as missense mutation.

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.