Biomolecules – Q20 “If the total amount of adenine and thymine in a double-stranded DNA is 60%, then the amount of guanine in this DNA will be”
Biomolecules – Q21 “An enzyme extract when subjected to electric field, separates into two fractions each catalyzing the same reaction. These fractions are”
Biomolecules – Q22 Amino acids the substituted methanes. Name the four substituent groups occupying the four valency positions