Fifty years of making downwind sailing products means that we know what you need to sail off the wind, and we have a selection of poles and related fittings to do the job right for your boat. I can't imagine sailing downwind without my whisker pole. I make offshore passages for a living and I count on my Forespar* whisker pole.
Internal and external hydrogen bonds stabilize the DNA molecule. The two strands of DNA stay together by H bonds that occur between complementary nucleotide base pairs. Two hydrogen bonds occur between the adenosine and the thymine base pairs, and between the cytosine and the guanine there are three.
The bases give DNA their variety. The bases are the rungs in the double helix ladders and the  â¦ handlesof the double helix are composed of deoxyribose sugar and phosphate. Hydrogen bonds hold all of these components together.. (This answer was copy and pasted from another answer.).