Deficiencies in this vitamin can lead to adrenal stress and high cortisol levels or cortisol depletion as your body attempts to make up for the vitamin deficiency by using this hormone's overdrive mechanism, which is usually reserved for emergencies, illness and other stressful events.
The reason why it is advantageous to have weak hydrogen bonds between complementary base pairs and strong covalent bonds between phoshate and deoxyribose groups in a DNA molecâ¦ule is because the strong covalent bonds running along the  ladder  of the DNA molecule ( the phospate and deoxyribose units ) keep the molecule together during its ...
On a single strand of DNA the nucleotides are held together by covalent bonding between the phosphate group bonded to the 5' end of the deoxyribose, which bonds to another deo â¦ xyribose molecule attached to the next nucleotide on the strand at the 3' end of the sugar.This is what holds together a single strand.he chemical bond that holds the double helix together in DNA are  the hydrogen bonds. Hydrogen bonds are the weakest making them  perfect for DNA replication.