The amino acid referred to as the \"helix breaker\" (because it lacks the hydrog

Question

The amino acid referred to as the "helix breaker" (because it lacks the hydrogen atom needed for hydrogen bonding) is leucine proline. methionine. valine. phenylalanine. Which of the following is an example of a defensive protein? cell surface receptor antibody hormone myosin keratin To which of the following classes of sugars does glucose belong? pentose hexose tetrose heptose triosc Which of the following is not a base used in DNA replication? thymine guanine uracil adenine cytosine The term amphipathic describes the characteristic of some molecules that have two polar regions only a single polar region both a polar and a nonpolar region no polar regions two nonpolar regions Which of the following is a eukaryotic characteristic? cell fission membrane-bounded nucleus little processing of RNA 70S ribosomes none of the above The smooth endoplasmic reticulum functions in synthesis of

Explanation / Answer

13. B proline and glycine both arecalled the helix breakers.

14. B antibody

Defensive protein because it prevent our body from the attack of pathogens

15. B hexose

Glucose is a 6 carbon containing aldose sugar C6H12O6

16. C uracil

It is present in RNA

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