Ayeast is cultured in the presence of radioactive phosphate and the following biological molecules are purified. which molecule should be most radioactive? a. an oligosaccharide b. proteins c. fats d. rna e. amino acids the answer is d. rna can someone explain why?

The most radioactive purified biological molecule will be RNA

Explanation:

RNA (ribonucleic acid) like DNA, is a long, unbranched macromolecule consisting of nucleotides joined by 3' - 5' phosphodiester bond.

In the cultured yeast, RNA is the most radioactive purified biological molecule because RNA is normally single stranded and does not undergo mutation, replication nor transcription.

Hence, it conserves the ultraviolet light absorbed from the radioactive phosphate during the culturing of yeast

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.