3. Phosphate. In the DNA strand the phosphate groups alternate with deoxyribose. Each phosphate group is joined to carbon atom 3â of one deoxyribose and to carbon atom 5â of another. Thus each strand has a 3â end and a 5â end.The two strands are oriented in opposite directions.he DNA molecule is a polymer consisting of several thousand pairs of nucleotide monomers. Each nucleotide consists of the pentose sugar deoxyribose, a phosphate group and a nitrogenous base which may be either a purine or a pyrimidine. Deoxyribose and a nitrogenous base together form a nucleoside.
Renewable energy is too expensive. [Wind energy] is a more expensive way of producing energy than the alternative. (David Montgomery). Due to its abundance and low market price, coal combustion is the largest source of energy production in the world, accounting for 40% of all electricity worldwide.
The visible light with the highest frequency (shortest wavelength) carries the most energy. That means it is the light at the violet end of the 'rainbow'.he blue end of the spectrum has a shorter wavelength, higher frequency and more energy than the red end o â¦ f the spectrum. Thus violet light has the highest frequency and most energy.