Photosynthetic pigments in bacteria are located in the:
A. nuclei.
B. plasma membrane.
C. chloroplasts.
D. cell wall.
E. plasmids.
B
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In one set of experiments she succeeded in increasing acetlylation of histone tails. Which of the following results would she most likely see?
A) increased chromatin condensation B) decreased chromatin condensation C) activation of histone tails for enzymatic function D) decreased binding of transcription factors E) inactivation of the selected genes
Primary endosymbioses gave rise to ________ and secondary endosymbioses gave rise to ________
A) chloroplasts in algae / chloroplasts in plants B) mitochondria in eukaryotes / chloroplasts in eukaryotes C) chloroplasts and mitochondria in plants and red and green algae / chloroplasts in other eukaryotes D) chloroplasts and mitochondria in green and red algae / chloroplasts and mitochondria in diatoms
What is the land mass labeled as 2 in the accompanying figure?
a. Pangea
b. Eurasia
c. Laurasia
d. Gondwana
e. Antarctica
A clinical microbiologist makes serial dilutions of several antimicrobials in broth, and then incubates each drug dilution series with a standard amount of a patient's isolated pathogen. What is this microbiologist setting up?
A. Kirby-bauer B. Antibiogram C. E-test D. MIC E. Therapeutic Index (TI)