Write the molecule or class of molecules described by each clue. If the clue des
ID: 593329 • Letter: W
Question
Write the molecule or class of molecules described by each clue. If the clue describes more than one (type of) molecule, give an example of a molecule or class of molecules described by the clue (1 point each) (7) (A) Molecule that "stores" genetic information, i.e. the molecule that genes are made of (B) A second messenger (other than cAMP) for signals received by G-Protein Linked Receptors (C) Nucleic acid base (nucleobase) present in RNA but not DNA in part due to its likelihood of tautomerization (D) An amino acid residue likely to be found at the edge of a membrane spanning helix as well as to be involved in binding with galactose residues in oligosaccharides (E) Constitutes the bulk of the ribosome, including the active site catalyzing peptide bond synthesisExplanation / Answer
Ans. #A. DNA is the molecule that stores genetic information.
#B. Hormones (epinephrine and norepinephrine) is secondary messenger for signals received by G-protein linked receptors.
#C. Uracil is a nucleobase present in RNA but not in DNA.
#D. Asparagine (N-linked oligosaccharides in glycoproteins) AND Serine (O-linked oligosaccharides in glycoproteins) may be present in edge of a membrane spanning helix as well as involved in binding with galactose residues in oligosaccharides.
#E. rRNA (ribosomal RNAs) constitutes the bulk of ribosomes including the active site catalyzing the peptide bond synthesis.
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