A heavy load of parasites is termed a(n) ________
Fill in the blank(s) with correct word
infection
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Thymidine dimers cannot be repaired in humans by which of the following?
A. nucleotide excision repair (NER) B. transcription-coupled repair (TCR) C. translesion synthesis (TLS) using Pol ? D. photoreactivation E. All of the choices given can be used to repair thymidine dimers in human cells.
Odor molecule receptors are located on the _____________ extending from olfactory receptor cells in the human nose.
A. axon B. soma C. cilia D. synapse E. oligodendrocyte
The difference between ATP and the nucleoside triphosphates used during DNA synthesis is that _____
A) the nucleoside triphosphates have the sugar deoxyribose; ATP has the sugar ribose B) the nucleoside triphosphates have two phosphate groups; ATP has three phosphate groups C) ATP contains three high-energy bonds; the nucleoside triphosphates have two D) ATP is found only in human cells; the nucleoside triphosphates are found in all animal and plant cells
Which of the following may have cell walls containing teichoic acids?
A) Gram-negative bacteria only B) Gram-positive bacteria only C) archaea D) both Gram-positive and Gram-negative bacteria E) all prokaryotes